Hair Loss Researcher & Dermatologist
Dr. Maya Chen
Dr. Maya Chen is a dermatologist and hair loss researcher with 12 years at the Stanford Hair Research Institute. She specialises in follicle regeneration, gene therapy approaches, and emerging biological treatments. Her work has been cited in over 80 peer-reviewed publications.
Articles by Dr.
Ritlecitinib Changed Everything, But Not For the Reason Most People Think
The FDA approval of ritlecitinib for alopecia areata in 2023 was framed as a win for one autoimmune condition. The researchers who understand where this drug family is going know it's something bigger.
Dr. Maya Chen
16 days ago
Exosomes: The Stem Cell Treatment That Isn't Actually Stem Cells
Clinics are charging thousands for exosome injections. The science behind them is genuinely interesting. The clinical evidence is significantly thinner than the price tags suggest.
Dr. Maya Chen
18 days ago
What Pyrilutamide Getting to Phase 3 Actually Means for Men With Hair Loss
Kintor Pharmaceutical's CB-03-01 successor has reached Phase 3 trials in the US and China. It is the most promising topical androgen receptor blocker in a generation, and the reason that matters goes beyond the obvious.
Dr. Maya Chen
20 days ago
Clascoterone Phase 3 Data Is In, And It's More Complicated Than the Headlines Suggest
The first topical antiandrogen to complete Phase 3 for androgenetic alopecia showed meaningful hair density improvements, but the effect size tells a more nuanced story than its proponents acknowledge.
Dr. Maya Chen
21 days ago
CRISPR for Androgenetic Alopecia: The First Human Safety Data Has Arrived
A Phase 1 trial testing CRISPR-Cas9 to edit the androgen receptor gene in scalp follicles has reported its first safety data. No serious adverse events, and one unexpected finding worth paying attention to.
Dr. Maya Chen
23 days ago
The Wnt Pathway Is the Master Switch for Hair Follicle Cycling, Here's What That Means for Treatment
Wnt/β-catenin signalling controls whether hair follicles stay in growth phase or enter rest. Every major regenerative approach to hair loss eventually encounters this pathway. Understanding it is non-optional.
Dr. Maya Chen
25 days ago
Baricitinib Two-Year Follow-Up Data: What Actually Happens After the Trial Ends
The FDA approved baricitinib for severe alopecia areata in 2022. Two years later, the open-label extension data answers the question nobody asked in the initial trial: what happens when patients stop taking it?
Dr. Maya Chen
27 days ago
PRP for Hair Loss in 2025: The Definitive Meta-Analysis of 28 Randomised Trials
Platelet-rich plasma has been used for hair loss for over a decade. A 2025 meta-analysis of 28 randomised controlled trials finally answers whether it actually works, and if so, for whom and by how much.
Dr. Maya Chen
29 days ago
Dutasteride Mesotherapy vs Oral: A Head-to-Head Comparison the Field Has Been Waiting For
Intradermal injection of dutasteride directly into the scalp has been practiced by dermatologists for years. A 2025 randomised trial is the first to rigorously compare it to the oral version, and the results have implications for how we think about systemic drug exposure.
Dr. Maya Chen
about 1 month ago
Stem Cell Conditioned Medium: The Quiet Treatment That's Building a Real Evidence Base
Rather than injecting stem cells directly, conditioned medium, the protein-rich fluid in which stem cells have grown, delivers the therapeutic signals without the cells themselves. The 2024-2025 trial data is genuinely promising.
Dr. Maya Chen
about 1 month ago
Robotic Hair Transplantation in 2025: What the Outcome Data Says About When It's Worth It
Robotic systems for hair transplantation have been marketed as precision improvements on manual FUE. A 2025 comparison study of 800 patients finally answers the question of whether that precision translates to better outcomes.
Dr. Maya Chen
about 1 month ago
Topical Caffeine vs Minoxidil: What a Proper Head-to-Head Trial Found
Caffeine-based hair products claim to rival minoxidil. A 2024 randomised controlled trial with 200 participants and an 6-month follow-up finally tested that claim properly.
Dr. Maya Chen
about 1 month ago
Minoxidil Sulfotransferase Activity Explains Why Some People Don't Respond
Topical minoxidil works for some users and not others, and the variability isn't random. The enzyme SULT1A1 converts minoxidil to its active form, and scalp expression varies dramatically between individuals.
Dr. Maya Chen
about 1 month ago
Spironolactone for Female Pattern Hair Loss: The Most Underprescribed Effective Treatment
Spironolactone has been used off-label for female pattern hair loss for forty years. The 2024 systematic review finally collated the evidence base, and the picture is more positive than its niche status would suggest.
Dr. Maya Chen
about 2 months ago
Isotretinoin Hair Loss: How Common It Actually Is and What Recovery Looks Like
Isotretinoin is one of the most effective acne drugs ever developed. It also causes telogen effluvium in a meaningful minority of users, here's the data on incidence and recovery.
Dr. Maya Chen
about 2 months ago
Lichen Planopilaris: The Scarring Alopecia Most Dermatologists Miss
Lichen planopilaris is a primary scarring alopecia that destroys follicles permanently. Early diagnosis is the only opportunity to preserve hair, but symptoms are often misattributed.
Dr. Maya Chen
2 months ago
Rosemary Oil vs Minoxidil: The 2024 Trial That Actually Held Up
A widely cited 2015 trial suggested rosemary oil matched 2% minoxidil for androgenetic alopecia. A more rigorous 2024 replication has now tested whether that finding survives proper methodology.
Dr. Maya Chen
2 months ago
Iron Supplementation for Hair Loss: Why Ferritin Below 70 Is the Real Threshold
Most physicians say ferritin within the normal range is fine. For hair loss, the relevant threshold appears to be substantially higher than the general anemia cutoff.
Dr. Maya Chen
3 months ago
Scalp Massage: A 4-Minute Daily Protocol With Surprisingly Real Evidence
A 2016 Japanese study found that 4 minutes of daily scalp massage produced measurable hair thickening over 24 weeks. The follow-up survey of 327 men added a real-world dimension to the finding.
Dr. Maya Chen
3 months ago
PCOS and Hair Loss: Treatment Considerations for the Underlying Endocrinology
Polycystic ovary syndrome affects 10–15% of women of reproductive age. Hair loss is a common feature, and treating it without addressing the underlying endocrinology often fails.
Dr. Maya Chen
3 months ago
Trichoscopy: The Diagnostic Tool That Should Be Standard in Every Hair Consultation
A handheld dermatoscope and three minutes is enough to distinguish androgenetic alopecia, alopecia areata, scarring alopecias, and telogen effluvium. Many consultations still rely on visual inspection alone.
Dr. Maya Chen
3 months ago
Thyroid Hormone and Hair Loss: Both Hypo and Hyperthyroidism Trigger Shedding
Hypothyroidism and hyperthyroidism both cause hair loss, but through different mechanisms. Testing TSH is the most basic workup item for unexplained shedding, and one of the most commonly overlooked.
Dr. Maya Chen
4 months ago
Latanoprost and Bimatoprost for Hair Growth: A Prostaglandin Story Worth Following
Eye drops for glaucoma turned out to grow eyelashes. The mechanism, prostaglandin F2-alpha receptor agonism, has obvious implications for scalp hair, though the clinical data remains mixed.
Dr. Maya Chen
4 months ago
Norwood Scale: Why the Classification System Matters More Than People Realise
The Norwood scale is older than most current hair loss treatments. It remains the standard staging tool, and getting the staging right shapes every subsequent treatment decision.
Dr. Maya Chen
4 months ago
Nutrafol Clinical Data: What the Trial Actually Showed
Nutrafol is the most expensively marketed hair loss supplement on the market. The trial data is real, but the trial design is unusual, and the effect size compared to alternatives is what matters.
Dr. Maya Chen
4 months ago
Hair Transplant Turkey: Cost Savings vs Quality Trade-offs
Turkey now performs more hair transplants than any other country worldwide. The cost advantage is genuine, but the quality variance is substantial, and patients need to understand both.
Dr. Maya Chen
4 months ago
Ludwig Scale vs Sinclair Scale: Choosing the Right Female Pattern Classification
The Ludwig scale has been the standard female pattern hair loss classification since 1977. The Sinclair scale offers more granular staging that has become preferred for clinical trials.
Dr. Maya Chen
5 months ago
Caffeine Shampoo Alpecin Marketing: Reading Between the Claims
Alpecin's caffeine shampoo has captured significant market share through aggressive marketing. The clinical claims sit on a foundation of in vitro data, and very short-contact-time application.
Dr. Maya Chen
5 months ago
Cetirizine for Hair Loss: An Antihistamine With Surprising Pilot Data
Topical cetirizine has produced unexpectedly positive hair count results in small trials. The mechanism, PGD2-pathway interference and inflammatory modulation, is plausible but the data is preliminary.
Dr. Maya Chen
5 months ago
Smoking and Androgenetic Alopecia: An Independent Risk Factor With a Plausible Mechanism
Multiple epidemiological studies have linked smoking to accelerated androgenetic alopecia. The relationship survives statistical adjustment, and the proposed mechanism makes biological sense.
Dr. Maya Chen
6 months ago
Alopecia Areata: Beyond JAK Inhibitors, What Else Is in the Pipeline
JAK inhibitors transformed alopecia areata treatment, but they're not the end of the story. Several other immune-modulating approaches are advancing through clinical trials.
Dr. Maya Chen
6 months ago
Telogen Effluvium After Bariatric Surgery: What 5-Year Data Reveals
Significant weight loss after bariatric surgery triggers telogen effluvium in roughly half of patients. The long-term recovery data is more complicated than acute studies suggested.
Dr. Maya Chen
6 months ago
Microneedling for Hair Loss: 0.5mm vs 1.5mm, Depth Matters
Microneedling protocols vary widely in needle depth and frequency. The 2024 comparison study finally provides standardised guidance for at-home and clinical protocols.
Dr. Maya Chen
6 months ago
Hairline Design in Hair Transplantation: The Art That Determines Natural Results
The single most important determinant of natural-looking hair transplant results is the hairline design. Get it wrong and no surgical technique can rescue it.
Dr. Maya Chen
6 months ago
Long Hair FUE: The Technique That Eliminates the Post-Op Buzz Cut
Standard FUE requires shaving the donor area. Long Hair FUE preserves donor hair length, eliminating one of the major lifestyle obstacles to hair transplantation.
Dr. Maya Chen
7 months ago
Traction Alopecia: Prevention Matters Because Treatment Doesn't Work Well
Traction alopecia from tight hairstyles is one of the few common forms of hair loss that's almost entirely preventable. Once established, treatment options are limited.
Dr. Maya Chen
7 months ago
Hair Loss in Asian Patients: Why Standard Norwood Assumptions Don't Always Apply
Androgenetic alopecia in Asian patients shows distinct patterns that don't always fit the Norwood scale designed for European populations. Treatment timing and approach differ.
Dr. Maya Chen
7 months ago
Dutasteride vs Finasteride for Androgenetic Alopecia: When to Choose Each
Dutasteride blocks both 5-alpha reductase isoforms; finasteride blocks only type 2. The clinical comparison shows dutasteride wins on efficacy and loses on side effect profile.
Dr. Maya Chen
8 months ago
Sleep, Cortisol, and Hair Loss: A Real but Often Overstated Connection
Chronic sleep deprivation elevates cortisol and inflammatory markers. The connection to hair loss is real but commonly exaggerated, here's where the evidence actually sits.
Dr. Maya Chen
8 months ago
Hyperbaric Oxygen Therapy for Hair Loss: Marginal Evidence, Major Cost
Hyperbaric oxygen therapy is promoted by some wellness clinics for hair loss. The evidence is preliminary and the cost is high relative to alternatives.
Dr. Maya Chen
8 months ago
Beard and Body Hair as Donor for Transplant: When and How It Works
Patients with extensive scalp hair loss but adequate beard or chest hair density now have a viable supplementary donor option. The technique has matured significantly since 2018.
Dr. Maya Chen
8 months ago
Vitamin K2 and Hair Loss: An Emerging Research Direction
Vitamin K2 has gained attention for bone and cardiovascular health. A few preliminary papers suggest possible relevance to hair biology, though the evidence is very early.
Dr. Maya Chen
9 months ago
Mesotherapy Cocktails for Hair Loss: What's Actually in the Injections?
Hair loss mesotherapy injections contain widely varying ingredient combinations across clinics. Understanding what's typically included helps patients evaluate the offering.
Dr. Maya Chen
9 months ago
AI-Based Hair Density Measurement: Smartphone Apps That Actually Work
Several smartphone apps now use machine learning to measure hair density from photographs. The clinical validation is mixed but the trajectory is promising.
Dr. Maya Chen
9 months ago
Topical Steroids for Hair Loss: When They Help and When They Hurt
Topical corticosteroids treat the inflammatory components of several forms of hair loss. Used inappropriately or chronically, they can cause harm, including paradoxical hair loss.
Dr. Maya Chen
9 months ago
Hair Loss After COVID Vaccination: Causation vs Correlation
Reports of hair loss following COVID vaccination prompted public concern. The epidemiological data shows the connection is complicated and largely explained by other factors.
Dr. Maya Chen
10 months ago
Trichodynia: The Scalp Pain Some Hair Loss Patients Experience
Some patients with hair loss describe scalp pain, burning, or sensitivity. The condition has a name, trichodynia, and addressing it can improve treatment adherence.
Dr. Maya Chen
10 months ago
Hair Loss From Common Medications: A Reference for What to Watch For
Many widely prescribed medications can cause hair loss. Recognising medication as a potential cause prevents unnecessary workup and enables treatment adjustment.
Dr. Maya Chen
10 months ago
Selenium and Hair Loss: Why More Is Not Better
Selenium is essential for hair growth, but the therapeutic window is narrower than most supplements suggest. Both deficiency and excess cause hair loss.
Dr. Maya Chen
10 months ago
Hair Loss Awareness Without Anxiety: The Psychological Side That Matters
Hair loss causes psychological distress for many patients in ways disproportionate to its medical severity. Recognising and addressing this dimension improves outcomes.
Dr. Maya Chen
11 months ago
Zinc Deficiency and Hair Loss: Less Common Than Marketing Suggests
Zinc deficiency causes hair loss when present, but true deficiency is uncommon in Western diets. The widespread inclusion of zinc in hair supplements isn't justified by population-level prevalence.
Dr. Maya Chen
11 months ago
Loose Anagen Syndrome: When Children's Hair Comes Out Painlessly
Loose anagen syndrome causes painless extraction of hair shafts in young children. It's underdiagnosed but typically self-resolving with age.
Dr. Maya Chen
11 months ago
Crown vs Frontal Hair Loss: Why the Distinction Matters for Transplant Planning
The crown and frontal scalp behave differently in androgenetic alopecia progression and respond differently to transplantation. Planning needs to address each appropriately.
Dr. Maya Chen
12 months ago
Stress-Induced Alopecia Areata: When Psychological Trauma Triggers Disease
Severe psychological stress can trigger alopecia areata onset or flares. The mechanism involves established connections between the nervous and immune systems.
Dr. Maya Chen
12 months ago
Density Visualisation: How Many Hairs Per Square Centimetre Looks Like What
Hair density numbers are abstract until you see what each density actually looks like. Understanding the relationship between numbers and appearance helps set realistic expectations.
Dr. Maya Chen
12 months ago
Topical Tretinoin Combined With Minoxidil: A Quiet Workhorse Combination
Adding tretinoin to minoxidil enhances scalp penetration and may upregulate the sulfotransferase enzyme that activates minoxidil. The clinical evidence supports the combination.
Dr. Maya Chen
about 1 year ago
Long-Term Outcomes After Hair Transplant: 10-Year Data Beyond Initial Results
Hair transplant results 12 months post-op look impressive. What they look like at 10 years tells a more complete story about lasting outcomes and ongoing native loss.
Dr. Maya Chen
about 1 year ago