31 articles
Most 'anti-thinning' and 'hair growth' shampoos do not grow hair — a rinse-off product has too little contact time to do much. But a few have real evidence, and others genuinely make hair look fuller. Here is the honest buyer's guide, graded by what the evidence shows.
Viviscal is one of the oldest and most-marketed hair-growth supplements, built around a marine-protein complex. It has published trials — unusually for the category — but they are small, industry-funded, and report modest effects. Here is the honest read, and how it compares to what actually works.
Vitamin D genuinely matters for the hair follicle — and deficiency is linked to several kinds of hair loss. But the honest message is narrower than the supplement aisle implies: correct a measured deficiency, don't megadose, and don't expect vitamin D to regrow hair if your levels are already fine.
Exosomes are the buzziest 'regenerative' hair-loss treatment in 2026 — pitched as the next step beyond PRP. The lab science is genuinely interesting. The human evidence is thin, the products are unregulated, and the FDA has issued warnings. Here is the honest separation of signal from hype.
Scalp micropigmentation tattoos tiny pigment dots onto the scalp to mimic hair follicles or add the illusion of density. It is not hair growth — it is camouflage — and for the right person it is one of the most effective options there is. Here is the honest guide.
Saw palmetto and finasteride both block the enzyme that makes DHT — but one is a weak, reversible botanical and the other a potent, FDA-approved drug. Here is the honest head-to-head on effectiveness, side effects, evidence, and who each one is actually for.
Scarring alopecias permanently destroy hair follicles and replace them with scar tissue. Unlike pattern baldness or telogen effluvium, the loss is irreversible — which makes early diagnosis a genuine emergency. Here is how to recognise it, the main types, and why a scalp biopsy is not optional.
The Ludwig scale grades female pattern hair loss in three stages, all sharing one signature: diffuse thinning over the crown with the frontal hairline preserved. Here is how to read your stage, how it compares to the Sinclair and Olsen scales, and what each stage means for treatment.
They are both 'hair loss,' but alopecia areata and androgenetic alopecia are almost opposite conditions — autoimmune vs hormonal, sudden patches vs gradual pattern, often reversible vs progressive. Telling them apart is the whole diagnosis, and it changes everything about treatment.
Pregnancy usually makes hair thicker, not thinner — rising estrogen keeps more follicles in the growth phase. So losing hair during pregnancy is a signal worth investigating: iron, thyroid, or a telogen-effluvium trigger. Here is what it means and what is safe to do.
Post-finasteride syndrome describes persistent sexual, neurological and mood symptoms after stopping finasteride. It is rare, contested in its mechanisms, real for the people who experience it, and surrounded by more heat than light. Here is the evidence-grounded version.
Oral finasteride is the most-studied prescription hair-loss treatment, with three decades of randomised trial data, a well-characterised effect size, and a side-effect profile that is real but smaller and rarer than internet anecdote suggests. Here is the decision-first guide — efficacy, dosing, side effects, who should and shouldn't take it, and how to start.
Low-level laser therapy has more FDA-cleared hair-loss devices than any other category and a positive trial base going back to 2009. Here is what the evidence actually shows about effect size, which device to pick, how it stacks with minoxidil and finasteride, and where the marketing outruns the data.
The strongest microneedling combo evidence is with minoxidil (Dhurat 2013). The newer question is whether stacking microneedling with topical finasteride — or dutasteride — adds something. Here is what the limited evidence shows and how to think about the stack honestly.
A side-by-side look at the five biggest US hair-loss telehealth services — what each actually prescribes, what it costs, where the convenience genuinely pays off, and where seeing a real dermatologist still matters more than a one-click subscription.
Scalp massage costs nothing, has zero downside, and has two small published human studies behind it. Here is what those studies actually demonstrate, why it might work mechanically, and where massage realistically fits next to treatments with stronger evidence.
Nutrafol is the most-marketed hair supplement in the US, costs roughly eighty-eight dollars a month, and is one of very few hair supplements with actual published clinical trials. Here is what those trials show, what they don't, and how the math compares to the drugs with more evidence behind them.
Caffeine shampoo is the most-marketed topical hair-loss product that isn't a drug. The petri-dish evidence is real; the head-on-a-pillow evidence is much thinner. Here is the honest verdict — what it does, what it doesn't, and where it sits next to treatments that actually work.
Polycystic ovary syndrome thins the hair on your scalp and thickens it on your face — the same androgen excess, opposite effects. Here is the mechanism, how PCOS hair loss is diagnosed, and the treatments that work when you treat the cause.
Telogen effluvium is sudden, diffuse hair shedding that follows a trigger by two to three months. It is alarming, common, and — unlike pattern hair loss — almost always reversible. Here is how to recognise it, what causes it, and what actually helps.
The Norwood-Hamilton scale grades male pattern hair loss from I to VII. Knowing your stage tells you which treatments still work, which trials would have accepted you, and when transplant becomes the realistic conversation.
Topical finasteride lowers serum DHT less than oral but enough to act on the follicle — with a fraction of the systemic exposure. The trial evidence, formulation reality, and who should actually switch.
Menopausal hair loss isn't 'regular FPHL after 50.' Estrogen withdrawal shifts the hormonal balance, finasteride 1 mg failed in the Price postmenopausal trial, and a different scarring condition — FFA — has to be ruled out first.
Microneedling is a controlled minor injury. Done right, the risk is minimal — but a single bent needle or a skipped alcohol soak can leave permanent scarring. The sterile protocol and the red flags.
Most people who quit microneedling do it around month 3 — exactly when nothing is supposed to be visible yet. The honest month-by-month timeline, what's normal, and when 'no results' really means non-response.
Most derma rollers sold online are the wrong needle length and the wrong build for scalp use. What actually separates a usable tool from a $5 tetanus risk — roller vs stamp vs pen, and how to choose.
Hats don't cause baldness, it's not only your mother's side, and plucking a gray hair doesn't grow two. Eleven persistent hair-loss myths, sorted from the actual science.
A 2015 RCT found rosemary oil matched 2% minoxidil on hair count at 6 months — with less itching. The honest read: what that trial does and doesn't prove, and how to use rosemary oil.
PRP injections show real benefit in randomized trials — but 'PRP' isn't one standardized thing, the gains need maintenance, and it costs $1,500–6,000 a year. The honest evidence review.
The full side-effect profile of topical and oral minoxidil — dread shed, propylene glycol irritation, hypertrichosis, cardiac, cat toxicity — sorted by what RCTs actually report vs Reddit hearsay.
Biotin only regrows hair if you're genuinely deficient — and true deficiency is rare. Worse, megadose biotin gummies distort lab tests, including ones that detect heart attacks.