How We Review

Most hair-loss websites tell you they “tested” a shampoo. What they usually mean is that somebody — often nobody in particular — washed their hair once, snapped a photo, and slotted an affiliate link next to an enthusiastic paragraph. The comparison tables are generated from marketing copy. The “clinically proven” claims are lifted verbatim from the manufacturer’s press release. The “Editor’s Choice” is the one paying the highest commission that quarter.

We decided to do something different, and to be honest about what that means.

What we are

Hairlossable is an editorial publication. We read the formulation, we read the clinical literature behind each active ingredient, we read consumer feedback across platforms that don’t profit from the product’s success, and we synthesize what we find into a review. We do this for every shampoo, serum, vitamin, and topical treatment we cover.

We are not a clinical research site. We don’t run our own placebo-controlled trials, we don’t take scalp biopsies, and we don’t own the laboratory equipment that would be required to verify a manufacturer’s efficacy claim. Plenty of publications pretend otherwise. We think the more useful thing is to tell you what we actually can — and cannot — determine from the outside, and to be specific about the difference.

What a review covers

Every review on this site is built on the same four-lens analytical frame. The lenses are not numerical scores — we used to run a scoring system and retired it, for reasons we’ll explain below — but they are the structural spine of every review, and each one is addressed explicitly in the text.

Formulation. We read the ingredient list end-to-end and describe what’s in the bottle, in what order, at what concentration where it’s disclosed, and whether the inactive matrix (surfactants, preservatives, fragrance) is appropriate for the scalp condition the product claims to treat. A shampoo advertising itself as “gentle on thinning hair” that leads with sodium lauryl sulfate is a formulation we call out.

Evidence. We evaluate each advertised active against the published literature — PubMed, Cochrane reviews, meta-analyses where they exist, and major dermatology society guidance (AAD, BAD, EADV). We distinguish between ingredients with randomized controlled trial support (minoxidil, ketoconazole, finasteride), ingredients with small but plausible clinical signals (caffeine, saw palmetto, pumpkin seed oil), ingredients with in-vitro-only support, and ingredients with nothing beyond manufacturer-commissioned work. We say which is which.

Honesty. We compare what the label promises to what the evidence actually supports. “Reduces hair loss in 30 days” is a claim. “Contains ketoconazole, which has clinical evidence for reducing seborrheic-dermatitis-associated shedding” is a defensible statement. We flag the gap when it exists, and we call out subscription flows, testimonial fabrication, and other consumer-facing trust issues that affect whether a product is doing what it says.

Value. We compare cost-per-milliliter and cost-per-day-of-use against the evidence strength and the realistic treatment timeline. A $50 shampoo with one trace active is a different product than a $50 shampoo with three evidenced actives. A subscription cost that outlasts the treatment window matters differently than a one-time purchase.

Alongside the four lenses, we read unincentivized user reviews — Amazon (one-star first), Reddit (r/tressless, r/HaircareScience, r/FemaleHairLoss), ConsumerAffairs, Trustpilot, product-specific Facebook groups. That reader-experience signal informs every section of the review without being a standalone score.

What we will never claim

A shampoo cannot regrow dead follicles. A shampoo is a topical wash that lives on your scalp for 30 to 90 seconds before being rinsed off. Even the most clinically supported actives in this category (minoxidil and ketoconazole) produce modest effects and require months of consistent use. Any product telling you that 30 days of shampooing will restore a receded hairline is lying to you, and any site repeating that claim is either negligent or complicit.

We will not tell you a shampoo cures androgenetic alopecia. That condition is driven by DHT sensitivity at the follicle, and the two medications with meaningful efficacy against it — oral finasteride and topical or oral minoxidil — are prescription-grade or OTC drugs, not cosmetic shampoos. A shampoo can support a hair-loss routine; it cannot replace it.

We will not post “before and after” photos that we cannot verify. The glossy transformation images you see on product pages are almost always staged, re-lit, or drawn from different people entirely. We have declined to reproduce them and we won’t fabricate our own.

We will not rank a product higher because its affiliate program pays better. We do not participate in retailer affiliate programs at all for products we review. If that ever changes, it will be disclosed at the top of every relevant page, not buried in a footer.

How our reviews are structured

Every review opens with a short-version callout — two or three sentences that tell you what the product is, who it’s for, who it isn’t, and whether we think it’s worth the money. If you want the bottom line without reading four thousand words, the opening is where you find it.

The body of the review walks through the four lenses above. At the end, we say explicitly who the product is a good fit for, who it isn’t, and what we’d actually recommend in its place if we wouldn’t recommend the product itself.

Our comparative roundups — the “best hair loss shampoos” pages, for example — use a deliberate taxonomy rather than a numbered ranking:

• Our pick. The product we’d buy first for the reader we’re writing for.
• Also good. A close second that fits a specific preference (scent, routine, skin sensitivity).
• Worth it if you specifically want X. A product that isn’t our default recommendation but is the right choice in a particular circumstance — color-treated hair, vegan formulation, specific ingredient combination.
• Skip. Products we’ve evaluated and actively recommend against, usually because the cost-to-evidence ratio is poor or the marketing is deceptive.

Why we dropped numerical scores

An earlier version of our methodology scored every review across four dimensions on ten-point scales and averaged them to a final score. We retired that system in 2026 because the numbers implied a precision we couldn’t defend. The difference between a 6.0 and a 7.0 was never as clean as a decimal suggested, and readers reasonably treated scores as more objective than they were.

The practical downside of scoring was that it encouraged brands to argue over half-points, encouraged readers to skim numbers instead of reading, and flattened the comparative argument that the prose handles better. Dropping scores lets us commit clearly to “this is our pick, this is why, this is what else to consider” without pretending we’ve measured each product to a tenth of a point.

Not hiding our ranking — just dropping the spurious precision of the number.

How we update

Every product page carries a “Reviewed” date and a separate “Last checked” date. We revisit every published review at least once every six months to confirm the formulation hasn’t changed (manufacturers reformulate quietly, and the change can invalidate the review), the price hasn’t shifted meaningfully, and no new clinical evidence has been published for the actives. When a review changes substantively — sub-scores moving, ingredients changed, new evidence cited — we note it in a “Changelog” block at the foot of the page.

Who writes this

Articles on Hairlossable are produced by the editorial team. We do not publish pseudonymous “expert” bylines invented to manufacture authority, and we do not fabricate reviewer credentials. Where a specific piece has been reviewed by a dermatologist, trichologist, or other named professional, their name, credentials, and the date of their review appears on that page. Where no such review has happened, no such claim is made.

We know this is the opposite of what most sites in this category do. It is also, we think, the only version of this worth reading.

How to reach us

If you spot a factual error in a review, a formulation we got wrong, or a clinical paper we missed, tell us. If you have direct experience with a product we’ve covered — positive, negative, or ambivalent — we read what readers send and we update when the signal is strong enough to move the rating.

The archive is here to be argued with. That’s the point.