Review Article
DOI: https://dx.doi.org/10.18203/issn.2455-4529.IntJResDermatol20214926
Expert opinion on current and emerging treatment options in androgenetic alopecia and telogen effluvium: an Indian perspective
1Lalwala Skin, Hair Transplant Centre, Surat, Gujarat, India
2Dr. Siddhartha Das, Orchid Skin Clinic, Kolkata, West Bengal, India
3Skin & Cosmetology Centre, Bangalore, Karnataka, India
4Indushree Skin Clinic, Lucknow, Uttar Pradesh, India
5Dr. Dhanalakshmi Skin Clinic, Chennai, Tamil Nadu, India
6Dr Girdhar’s Skin Clinic, Karkardooma, Delhi, India
7Skin n’ Smiles, Gurugram, Delhi, India
8Abhiridh Specialty Clinic, Secunderabad, Telangana, India
9Myskin Laser Clinic, Kandivali (East), Mumbai, Maharashtra, India
10Department of Dermatology, NKP Salve Institute of Medical Sciences and Lata Mangeshkar Hospital, Nagpur Maharashtra, India
Received: 20 May 2021
Revised: 19 July 2021
Accepted: 05 August 2021
*Correspondence:
Dr. Bharat Lalwala,
E-mail: bilalwala@yahoo.com
Copyright: © the author(s), publisher and licensee Medip Academy. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
ABSTRACT
The diagnosis and management of hair loss needs an organized and systematic approach for recognizing pattern of hair loss and identification of hair loss etiology. Early and specific diagnosis is essential to initiate appropriate treatment in the early phases of hair loss. Topical minoxidil and oral finasteride are the only approved drugs for androgenetic alopecia (AGA). Various other treatment options are widely used but have limited clinical evidence. Similarly, there are no specific treatments recommended for telogen effluvium (TE). However, the treatment may become challenging with increasing availability of new formulations and drugs with no substantial evidence to support them. Multiple focused group discussions were conducted among Indian dermatologists to gain expert opinion on appropriate management of AGA and TE in the current scenario. This article summarizes the consensus clinical viewpoints for topical and oral medications, role of nutritional supplements, and other adjunctive therapies in managing AGA and TE. The panel highlighted that the choice of treatment for AGA and TE depends on the individual hair loss pattern and response to medications. A brief discussion on the use of shampoos and procedures has also been highlighted.
Keywords: Androgenetic alopecia, Telogen effluvium, Management, Treatment, Nutritional therapy
INTRODUCTION
Hair loss is a common dermatological complaint affecting quality of life of patients. Patients usually visit the clinic with diffuse or patchy hair loss. Androgenetic alopecia (AGA), a normal physiologic variant, is the most common type of alopecia after puberty in both males and females. Telogen effluvium (TE), a non-scarring, non-inflammatory alopecia, has sudden etiology and is caused by physiologic or emotional stress.1 Female pattern hair loss (FPHL) is the most common hair loss disorder in women. It may develop during adolescence and lead to progressive hair loss with a characteristic pattern of non-scarring diffuse alopecia.2 Proper history and physical examination help understand the hair loss pattern and determine the specific etiology. Further investigations are needed to identify causative factors or rule out or detect any underlying comorbidity.1 Good clinical decision-making needs better understanding of pathophysiology, identification of causal factors underlying hair loss, and a specific diagnosis. Evidence-based medicine with clinical expertise is often necessary for treatment of hair loss.3 Currently, a wide range of treatment options are available for management of hair loss, including approved evidence-based drugs and off-label medications. Additionally, various adjunctive therapies are also employed but are supported with limited clinical data. Among existing and emerging treatment options for hair loss, it is necessary to understand changing treatment trends and to identify effective and safe treatment options in the current scenario for appropriate hair loss management.
Focused group discussions among 83 dermatologists across various regions in India were conducted via teleconference. The objective of the meetings was to obtain clinical perspective of experts on the management of AGA and TE in current clinical practice. A consensus expert opinion was then derived from discussions on various aspects of treatment and management. This article was formulated using 72 published research articles, systematic reviews, and/or meta-analyses, and outlines of the consensus opinion of the experts. For literature search, PubMed and Google were accessed to identify relevant articles using Boolean operators “AND” and “OR” and /keywords like hair loss, androgenetic alopecia, telogen effluvium, female pattern hair loss, management, diagnosis, minoxidil, finasteride, nutrition, and supplements were searched.
EPIDEMIOLOGY OF AGA AND TE
Prevalence of AGA
The onset of AGA is estimated to be at any age following puberty and its frequency is observed to be increasing with age.4 The prevalence of AGA is found to be highest in the Caucasian population, affecting up to 80% Caucasian men and 42% of women.4,5 In India, around 58% prevalence of AGA has been estimated in men aged 30-50 years, with type II and III as the most common presentation.5 Approximately, 6%-38% of healthy women report some degree of frontal and/or frontal-parietal hair loss.2
Prevalence of TE
TE is the most common concurrent hair loss condition affecting 38.6% of patients with FPHL.6 Incidence of TE and female pattern hair loss (FPHL) was found to be highest in the age group of 21-30 years, whereas chronic TE was predominant in the 30-40-year age group.7
Consensus statement 1
The panel stated that equal proportion of males and females report with hair problems; AGA is more commonly observed in males, affecting the age group of 20-50 years. In women, the condition is often under-diagnosed; hence; lack of evidence on the same has been reported. In women, AGA is often confused with TE. FPHL is most commonly observed in obese females in mid-30s, and particularly in females with symptoms of polycystic ovarian disease (PCOD).
DIAGNOSIS OF AGA AND TE
History and clinical examination
Patient history is necessary to identify the exact cause of hair loss, AGA, or TE. The typical pattern of hair loss over frontal, parietal or vertex areas, and experience of pain or itching are imperative. Family history, history of diseases and concomitant medications, hormonal dysfunction, and dietary and lifestyle factors must be considered.5 Clinical examination of hair and scalp is performed to identify if hair loss is patterned or not. Pull-test may be performed to assess severity of hair loss.5 Trichoscopy is a useful diagnostic tool for AGA. The main features of AGA on trichoscopy are hair diameter diversity greater than 20%, perifollicular pigmentation/peripilar signs, and yellow dot.5 AGA/TE wash test can be used to distinguish between AGA and TE. It is based on count of vellus and terminal telogen hair strands that are rinsed out on washing the scalp after a 5-day abstinence from washing.5
Laboratory investigations
Although laboratory investigations are not needed in AGA cases in males, prostate specific antigen test may be done before initiating finasteride in men aged >45 years. In women, laboratory tests are conducted to rule out underlying hormonal dysfunction as observed in polycystic ovarian disorder. Tests include free androgen index test, dehydroepiandrosterone (DHEAS) and prolactin.5 Laboratory tests like complete blood count, urine analysis, serum ferritin, T3, T4, and thyroid stimulating hormone should be performed to diagnose TE. Other less common tests include antinuclear antibody titer and serum zinc level.8
Consensus statement 2
The experts agreed that examination and detailed history are highly advised for AGA and TE. Clinical diagnosis of AGA in males involves bitemporal recession whereas in females it involves more of frontal hair thinning with a commonality in reducing diameter, miniaturization of terminal hair, and vellus hair. Tests to be performed include trichoscopy, hair pull test, and scalp biopsy. In AGA, trichoscopy findings show yellow dots, which is a distinctive feature that is absent in TE. Clinical trigger factors for TE include history of stress, hospitalization, dengue, any febrile illness, pre-existing disease, and history of excessive bleeding. Blood sugar levels and insulin resistance test are considered, especially in males with early onset AGA. In TE, basic set of investigations include serum ferritin test, vitamin B12, D3, hemoglobin and thyroid profile. Overall, hair loss profile investigations include hemogram, ferritin, iron stores, sex hormone binding globulin, vitamin B12, vitamin D, PCOD, and insulin.
OVERLAP OF AGA AND TE
Identification and diagnosis may be difficult if people have hair loss due to multiple coexisting forms of alopecia. Wohltmann and Sperling reported multifactorial alopecia from single biopsy specimens in 12.5% of cases. AGA was found to be coexisting with traction alopecia, end-stage scarring alopecia, TE, and androgenetic alopecia (AA).9
Consensus statement 3
According to experts, females often present with chronic TE progressing to patterned alopecia. In ~50% of females who present with PCOD, metabolic syndrome, and an unhealthy lifestyle, chronic TE progresses to FPHL. Coexistence of TE and FPHL is also prevalent in obese females and after childbirth. Use of trichoscopy in overlap cases helps to differentiate between AGA and TE. History of crash diet and keto diet is commonly identified in TE, which adversely affects hair loss and progresses to AGA. Important differentiation between AGA and TE is that thinning of hair in the occipital area is not seen in AGA.
TREATMENT AND MANAGEMENT
Conventional treatment in AGA
Among androgen-dependent agents, topical minoxidil is the only Food and Drug Administration (FDA) approved drug for management of AGA. Minoxidil 2% and 5% are approved for male AGA; whereas only 2% is approved for female AGA. Finasteride (1 mg once daily [OD]) is the only oral drug approved for treatment of male AGA. Dutasteride is considered a potential alternative to finasteride and is currently approved for benign prostatic hyperplasia. Clinical studies have demonstrated its efficacy and safety in treatment of male AGA.10
Topical treatment in AGA
Topical minoxidil
Minoxidil 2% solution twice daily is effective for preventing progression and improving AGA in frontotemporal and vertex regions.4 In men with AGA, 5% topical minoxidil was found to be superior to 2% topical minoxidil in increasing hair growth, indicated by 45% more hair regrowth than 2% topical minoxidil at week 48.11 The efficacy of 5% solution (once daily) is observed to be comparable to 2% solution (twice daily).4 In females, 2% topical solution has demonstrated better efficacy than 1% solution. Topical minoxidil treatment should be continued for at least 6 months before assessing its efficacy.10 On getting expected results, the treatment needs to be continued to maintain efficacy.4
High concentration minoxidil
Besides the approved 2% and 5% topical minoxidil solutions, various concentrations of minoxidil solution in the range 2%-12% are available. In a 36-week study in men with AGA, Ghonemy et al observed superiority of 5% solution over 10% solution for hair growth with respect to total vertex and frontal hair mean count. Irritation was observed to be high for 10% topical minoxidil.12
Vehicles of minoxidil
Minoxidil has poor skin penetration ability; alcohol and propylene glycol facilitates solubility and uptake of minoxidil in tissues.13,14 Propylene glycol is associated with adverse reactions such as itching, irritation, scaling, redness, contact dermatitis, and dryness.13,15 Thus, alternative solvents like butylene glycol, glycerin, or polysorbate are used to avoid potential hypersensitive reactions with minoxidil, especially in propylene glycol-sensitive patients.14,16,17 Foam formulation of minoxidil, which is propylene glycol-free, exhibits application benefits such as better drug penetration and ability to deliver a greater amount of the active drug at an increased rate, compared with other vehicles.15 A comparative study of 5% minoxidil solution and 5% minoxidil milky lotion (butylene glycol solvent) demonstrated that both formulations are equally effective and can be used as an alternative treatment for propylene glycol-sensitive patients.16
Consensus statement 4
Experts agreed that first-line topical treatment for AGA is 5% minoxidil for males and 2% minoxidil for females. Higher strengths of 10% can also be used in male patients, who do not benefit from 5% minoxidil. In addition, steroid lotions are prescribed in patients who show irritancy and flaking with minoxidil use. Flaking and irritation is often seen with 10% minoxidil because of the propylene glycol base; hence, compliance issues are observed in certain patients. The panel opined that alcohol and propylene glycol-free preparations of minoxidil are superior due to lesser irritation and itching, and thus help better patient compliance. Additionally, foams tend to liquefy and are difficult to apply. Thus, solution-based formulations can be preferred as they may be less messy than foams.
Combination therapies of minoxidil
Minoxidil and finasteride
Topical minoxidil and finasteride combination demonstrated good hair density maintenance after initial improvement with oral finasteride. In addition, topical combination treatment was well tolerated with good compliance.18 Combination of 3% minoxidil and 0.1% finasteride lotion showed significant improvement in men with AGA on comparison with 3% minoxidil solution.19 A 12-month study in male AGA patients demonstrated better efficacy of oral finasteride and topical 5% minoxidil combination (94%) compared to finasteride and minoxidil monotherapies (80% versus 59%, respectively).20 Studies have demonstrated efficacy of topical finasteride without significant systemic adverse effects in men with AGA.19,20 Topical formulations of finasteride could minimize systemic side effects of oral finasteride.21 Suchonwanit et al demonstrated that topical combination of 0.25% finasteride and 3% minoxidil was effective in postmenopausal women with FPHL versus 3% minoxidil solution with significantly superior increase in hair diameter.21
Minoxidil and peptides
Botanical ingredients including peptides are safe alternative treatment options.22 Redensyl is a combination of four active ingredients: dihydroquercetin-glucoside (DHQG), epigallocatechin gallate glucoside (EGCG2), glycine, and zinc. DHQG and EGCG2 (two stabilized polyphenols) target and stimulate fibroblasts in the outer root sheath stem cells and dermal papilla, and glycine and zinc are required for hair metabolism.22 Capixyl, a biomimetic peptide (mixed with red clover extract), demonstrated increase in hair width and density by rebalancing anagen/telogen ratio and promoting healthy hair growth.23
Minoxidil and procapil
Procapil is a combination of three plant-derived substances, oleanolic acid (inhibits 5α1 and 5α2 reductase enzymes), apigenin for vasodilation, and glycine-histidine- lysine peptides which have pro-matrix metalloproteinase activity.22 A randomized controlled study compared combination of procapil, redensyl, and capixyl with 5% minoxidil for 24 weeks. The peptide group showed 1.5 times greater improvement versus minoxidil group.22 Additionally, better patient satisfaction was reported with topical minoxidil combined with peptides like procapil versus topical minoxidil alone.22
Minoxidil and other combination therapies
Vitamin A and its derivatives may have a significant role in growth and maintenance of hair follicles. Tretinoin has demonstrated enhancement of more dense hair in combination with minoxidil.24 Combination of minoxidil and tretinoin was observed to increase percutaneous absorption of minoxidil by 3-fold by increasing stratum corneum permeability.25 Azelaic acid is a potent inhibitor of 5-alpha reductase and could be an effective adjunctive treatment in androgen related pathology.26
Consensus statement 5
In clinical practice, minoxidil is given with oral finasteride depending on severity of hair fall. In patients who are not comfortable with oral finasteride due to side effects, topical finasteride is considered.
Topical peptide combinations add up to the efficacy of minoxidil; procapil and capixyl potentiate 5-α reductase inhibition. In cases where minoxidil monotherapy needs to be avoided, minoxidil combined with peptides can be used. The combination of minoxidil, azelaic acid, and tretinoin is preferred in diffuse AGA. It can also be given to patients with seborrhea along with male pattern alopecia. Azelaic acid is a 5α- dihydrotestosterone (DHT) blocker, and tretinoin increases penetration and efficacy of minoxidil and dermal thickness.
Topical treatment in TE
Although there is no specific treatment for management of TE, topical minoxidil has been reported to be effective as it prolongs anagen phase.8 Amino acids or topical peptides are also indicated to provide benefits in TE.27 A range of vitamins, minerals, and botanical products for multimodal treatment of hair loss are available.28 Melatonin influences hair growth by inducing anagen phase.29 Adenosine has demonstrated an increase in growth rate of anagen hair and thick hair rate.30 Other ingredients like serum-based peptides, caffeinated preparations, and topical botanicals may also be useful.27
Consensus statement 6
The experts preferred peptides containing sera, procapil, botanicals and vitamin supplements as topical treatment for TE. Topical minoxidil can be used in case of chronic TE. Peptide formulations with multivitamins have shown good results.
Oral treatment in AGA
Finasteride is the first approved oral drug for treatment of men with AGA. It is considered as the most effective oral therapy for AGA based on extensive clinical data.31 Finasteride at the dose of 1 mg per day is considered as the optimal dose and long-term use results in sustained improvement.32 Sexual side effects of finasteride were reported to occur at the rate of 2.1%–3.8%, which was comparable to placebo.32 Overall, current literature on the safety of finasteride indicates that it is a safe drug.32 In female pattern AGA, oral finasteride at doses of 2.5 mg/day or 5 mg/day was effective for treatment of patterned hair loss in postmenopausal women.33,34
Consensus statement 7
The panel advised that in males, 1 mg finasteride or 0.5 mg dutasteride could be considered as oral treatment. Spironolactone is useful in females who are not planning to get pregnant in the future. Also, finasteride 2.5 mg or 5 mg is useful in females who have completed their family and in post-menopausal women.
Oral treatment in TE
Hair growth is influenced by diet via complex metabolic interactions.35 Unmet nutritional needs can be supplemented by nutritional therapy in the form of vitamins, minerals, and proteins.8,35 Nutrition replacement therapy can be considered for catagen promoting deficiencies like iron, zinc, estradiol, and protein deficiency.8 Sulphur containing amino acids, cysteine and methionine, are necessary for hair building. Other amino acids like L-lysine, are important for hair shape and volume. Vitamins C, B-complex and A have an impact on state of hair. Minerals like zinc, iron, copper, selenium, magnesium, and calcium are known to influence hair growth.36 Vitamin D has been suggested to delay aging including hair loss.2
Consensus statement 8
According to experts, nutritional supplements, a diet rich in iron and vitamin B-12, biotin supplements, cysteine formulations and calcium supplementations must be considered in TE.
Nutritional supplementation in AGA and TE
Studies have reported a causal link between nutritional deficiencies and pathology of AGA, TE, and female pattern hair loss.35 Low serum ferritin has been associated with increased prevalence in patients with chronic TE, FPHL, AGA, and AA. Despite multiple studies, inconsistent data suggests link of iron deficiency to hair loss. Limited information exists on effects of zinc supplementation on hair growth.35 The benefit of oral supplementation with amino acids, biotin, zinc, and other micronutrients in hair loss of any origin is controversial.2 There are only a few studies and anecdotal evidences on a number of nutritional supplements for hair growth. There is a lack of good quality randomized controlled trials to support the claims.
Consensus statement 9
Experts emphasized that nutritional supplementation plays a secondary role in AGA treatment and is usually given for 3-6 months. Multivitamins and iron supplements are necessary for TE. The panel agreed that there can be deficiencies in otherwise healthy participants with hair loss irrespective of the type of alopecia. In people with nutritional deficiencies, supplementation might be useful in preventing hair loss.
Novel formulations in AGA and TE
Topical caffeine-based formulations
Caffeine promotes cell proliferation by stimulating cell metabolism.37 Topical application of caffeine improves barrier function and follicular penetration and stimulates and promotes hair growth.37
Oral minoxidil therapy
Oral minoxidil is used off-label for AGA and FPHL, but it is associated with dose-related side effects.2 Oral minoxidil at a dose of 5 mg daily was effective with acceptable safety profile in male patients with AGA.38 Clinical studies and case reports have shown therapeutic benefits with oral minoxidil for hair loss treatment; however, optimal dosing of oral minoxidil needs to be determined.39
Supplements
Dietary insufficiency of vitamins, minerals, or quality proteins may correlate with clinical and subclinical hair loss. There could be increased nutrient loss or poor nutrient absorption contributing to dietary insufficiency.40 Epigallocatechin gallate, a major constituent of polyphenols, has been shown to stimulate growth of hair follicles by proliferative and apoptotic effects of dermal papilla cells. It might be useful in prevention or treatment of AGA.41 Combined administration of capsaicin and isoflavone might increase insulin-like growth factor-1 (IGF1) production in hair follicles, which plays an important role in hair growth. Subjects with alopecia were observed to have increased plasma levels of IGF1 at 5 months of oral administration of capsaicin (6 mg/day) and isoflavone (75 mg/day).42 Hair shedding was significantly reduced in the first 3-6 months after daily oral consumption of marine protein-based supplement.40
Cyclical therapy
Cyclical nutritional therapy it maintains low gradient in circulation and leads to more efficient absorption and complete utilization. It also helps reduce dosage and improve efficiency of nutrients. It enables inclusion of a broad range of essential vitamins, minerals, amino acids, fatty acids, coenzymes, and supportive nutrients in therapy.43
Consensus statement 10
The experts highlighted good penetration properties of caffeine-based formulations. However, lotions or shampoos with caffeine have shown to increase anagen phase. Data on oral minoxidil data are limited.
Protein supplements (tablet/powder) can be used as a supplementation. Experts expressed preference for plant-based protein supplements. Additionally, supplements with antioxidant ingredients like green tea extract can also be used.
The panel suggested that ingredients that show an interaction with each other can be spaced out in two different formulations in a day. Supplementation could be given as a comprehensive nutritional intervention with ingredients spaced out (day and night regimen).
Treatment for AGA and TE overlap
Very few studies have reported multiple forms of alopecia in patients with hair loss. Overlap of clinical presentation makes identification and diagnosis challenging.9
Consensus statement 11
The panel highlighted that in AGA and TE overlap cases, topical minoxidil is initiated as the first choice of treatment. Oral finasteride in males and females can also be considered. However, usually topical minoxidil or minoxidil with peptides is considered in females due to possible adverse events of finasteride. Nutritional supplements are given as required.
Use of cosmeceuticals in AGA and TE
Shampoos
Besides treating dandruff and seborrheic dermatitis, zinc-based shampoos have shown reduction in hair loss. They may be included as an integral part of treatment regimen for hair loss, even in absence of scalp pathologies.44 TE was controlled by ketoconazole, piroctone olamine, and zinc pyrithione shampoos at 1% concentration in men with TE related to androgenic alopecia associated with dandruff. Additionally, ketoconazole and piroctone olamine increased mean hair shaft thickness and decreased sebum output.45 Vigorous shampoo application may damage hair and thus, must be avoided.27
Hair styling products
Cosmetic products minimize hair fiber breakage, improve hair volume, or conceal visible bald scalp, and thus, improve overall appearance. Products providing lubrication also help in minimizing hair friction and may provide temporary, external ‘gluing’ to prevent damage to uplifted cuticles, thus reducing hair breakage. Along with shampoos, other topical products can add bulk to the hair fiber surface, lift/hold the hair and help mask visible scalp.46 Oil can be used as a pre-wash conditioner to protect cuticles and make hair smooth and shiny.27
Consensus statement 12
The panel stated that generally shampoos are not prescribed as part of treatment procedure. However, if the patient insists, sulphate-free, mild shampoos, at neutral/acidic pH, having fewer preservatives, perfumes or chemicals are preferred. Shampoos containing anti-androgenic and anti-inflammatory ingredients are preferred.
Experts advised to avoid any hair styling products during the treatment period. If required, leave-on conditioners or deep conditioning masks can be used for dry and frizzy hair to improve hair manageability. Vitamin E-based serums, oils, and tocopherol oil may work well. Hair oil can be avoided if the patient is on minoxidil or has seborrhea or any scalp issues. The experts expressed need for a good pharmaceutical preparation for hair grooming, which could be used along with minoxidil.
Sensitive scalp in AGA and TE
Seborrheic dermatitis (SD) was the most common disease associated with AGA in men (51.2%) and women (45.7%).47 SD can be related to increased production of DHT in affected areas. Increased DHT, a key factor in seborrheic dermatitis and AGA, stimulates the sebaceous gland.67 Sensitive scalp may get worsened and be triggered by hair loss.48
Consensus statement 13
Experts emphasized that in cases of sensitive scalp, conditions like iron deficiency, inflammation, or alopecia, areata need to be ruled out. It may also be necessary to investigate neuropsychiatric association of sensitive scalp. Alcohol-free minoxidil formulations or peptide preparations could be used in patients with scalp sensitivity.
Role of hair camouflage in AGA and TE
Camouflage options for patients who suffer from hair loss include full or partial wigs, hair extensions, concealing powders and sprays, surgical tattoos, and hair transplants. Natural wigs use real human hair fibers and give natural appearance, but are expensive and need maintenance. Synthetic wigs are easy to maintain and less expensive. Topical hair fibers made of wool or rice keratin, rayon, or human hair must be applied daily. Temporary and daily application camouflage options are pigmented concealing powders, lotions, and sprays. Powder cakes are circular concealing disks that can be applied to the scalp with a sponge. Camouflage lotions and sprays are applied to limit color contrast between existing hair and scalp. Permanent hair camouflaging options include hair transplantation and micropigmentation.49
Consensus statement 14
According to the experts, hair camouflage options are beneficial for patients who present with extensive alopecia areata, alopecia universalis, and hair patches, and patients who shaved off their hair for surgery. Pigmented concealing powders, lotions, and sprays can be used. Hair fibers can be used in patients who have undergone hair transplantation or patients with early AGA. Using hair patches or transplantation is mainly based on patients’ expectation. Many patients prefer concealers due to associated social stigma and anxiety.
Procedures in AGA and TE
Mesotherapy, a non-invasive technique, is expected to restore abnormal physiology causing alopecia by stimulating various biological responses via injecting active substances (e.g. vitamins, medications, and plant extracts) into the scalp, just below the epidermis using superficial microinjections. There is variable and limited data available to support use of mesotherapy for alopecia treatment. Microneedling pierces stratum corneum and creates numerous transient microchannels over the applied surface without damaging the epidermis. It induces collagen synthesis, stimulates stem cells and growth factors, and increases blood flow to hair follicles. There is an increased clinical interest for microneedling in treating different types of alopecia. Platelet-rich plasma enhances proliferation of dermal papilla cells and prevents cell apoptosis, thereby promoting cell growth survival of hair follicles. It has demonstrated to be an effective tool as an alternative treatment for alopecia. Lasers or light sources are also reported to improve texture and quality of hair and promote hair growth. Although safe and effective, large placebo-controlled studies are needed.50
Consensus statement 15
Experts highlighted that platelet-rich plasma therapy is often considered as a supportive or add-on therapy or if there is no/less response observed with minoxidil. It is also used in combination with other therapies like microneedling for AGA treatment. Laser light therapy is difficult to implement in clinical practice; however, it has shown positive effects.
CONCLUSION
For specific diagnosis of hair loss, detailed history, clinical pattern of hair loss, diagnostic tools like trichoscopy, triggering factors, and information regarding underlying diseases or nutritional deficiencies are essential. While experts provided comprehensive, clinical views for appropriate management of AGA and TE, it was agreed that individual clinical pattern and patient compliance play an equally important role in the management plan. Use of alcohol-free or propylene-glycol free minoxidil solution (5% for males and 2% for females) can be helpful in lowering irritation. Combination therapies with minoxidil could be considered to increase effectiveness of minoxidil. Topical peptide formulations along with multivitamins or oral iron, vitamin B-12, biotin supplements, cysteine formulations, and calcium supplementations must be considered in TE. Lastly, mild and sulfate-free shampoos with acidic pH containing anti-androgenic and anti-inflammatory ingredients could be used, if necessary. Although, substantial evidence is still lacking for several drugs and supplements, this consensus provides valuable insights for current management of AGA and TE in India.
ACKNOWLEDGEMENTS
The authors thank Scientimed Solutions Pvt. Ltd. for assisting in development of this manuscript.
Funding: No funding sources
Conflict of interest: None declared
Ethical approval: Not required
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