DHT (dihydrotestosterone) is a hormone your body produces naturally from testosterone via an enzyme called 5-alpha-reductase. In moderate amounts, it's harmless. But when DHT accumulates around hair follicles, it gradually miniaturises them — making each growth cycle produce a thinner, shorter strand.

This is the mechanism behind androgenetic alopecia (pattern thinning) — the most common form of hair loss in both men and women. It typically starts at the temples and crown, which is why those areas thin first.

We take a multi-target approach, because DHT-driven thinning operates at several biological levels — and blocking just one leaves the others exposed. The sophistication isn't in doing more, but in choosing exactly the right form at each level.

Level 1 — enzyme inhibition. HairBooster uses microencapsulated saw palmetto — a liposterolic extract engineered for stability and bioavailability, not the cheaper raw-powder form found in most supplements. It competitively inhibits 5-alpha-reductase types I and II, the enzymes that convert testosterone into DHT. Among hair-supporting botanicals, saw palmetto has the broadest evidence base. We chose the form that honors that evidence.

Level 2 — receptor competition. Pumpkin seed extract provides beta-sitosterol, which competes with DHT at the androgen receptor — blocking DHT from binding to follicle cells even if some gets through. A concentrated 20:1 extract was selected because concentration drives phytosterol density, and density drives results.

Level 3 — cofactor support. Zinc modulates 5-alpha-reductase activity as an enzymatic cofactor, adding a mineral-level layer to the defense. It's the kind of quiet contributor that makes the whole system more robust.

Enzyme inhibition: A systematic review of 7 studies (5 RCTs + 2 prospective cohorts) on the saw palmetto pathway found 60% overall improvement, 27% hair count increase, and 83.3% of patients showing increased density. In a 16-week double-blind, placebo-controlled study (n=80), standardised extract reduced hair fall by 29% (P<0.001), increased density by 5.17% (P<0.001), and significantly reduced serum DHT levels.

Receptor competition: Pumpkin seed oil was studied in a 24-week RCT (n=76 men), showing +40% hair count increase versus +10% in the placebo group (P<0.001).

When these mechanisms are combined — targeting the enzyme, the receptor, and the cofactor level — the coverage is more comprehensive than any single agent alone. Each botanical was sourced in the specific extract form and concentration ratio used in the clinical studies, not a label-friendly shortcut.

The DHT-defense pathway intersects with inflammation in an important way. Beta-sitosterol from the receptor-competition layer also has anti-inflammatory properties — relevant because chronic micro-inflammation around miniaturising follicles is an emerging factor in pattern thinning.

Vitamin D3 in the formula supports immune modulation around the follicle (T-cell regulation), while the antioxidant stack (tocotrienols, selenium, vitamin C) helps reduce the oxidative environment that accompanies DHT-driven damage. Together, they address not just the hormone, but the inflammatory and oxidative conditions that make it worse.

Two premium botanicals anchor the DHT-defense system. But the formula was designed to address the conditions that make DHT worse — not just the hormone itself.

Zinc — acts as an enzymatic cofactor for 5-alpha-reductase modulation, adding a mineral-level reinforcement layer alongside the botanical inhibitors.

Vitamin D3 — supports immune modulation (T-cell regulation) around the follicle, addressing the perifollicular micro-inflammation increasingly linked to pattern thinning.

Tocotrienols + selenium + vitamin C — the 3-compartment antioxidant stack reduces the oxidative environment that accompanies DHT-driven miniaturisation, helping preserve follicle integrity in hormone-sensitive areas.

Inflammation. Oxidation. Hormonal imbalance. A formula that only addresses one is a formula that leaves you exposed. This one was designed to address all three.

DHT-related thinning develops slowly, and reversing it takes patience. In clinical studies, meaningful changes in hair count appeared at 16–24 weeks.

Early signs are subtle: less shedding in the shower, hair that feels slightly more substantial when you run your fingers through it. Over 4–6 months, the temples and crown — the areas most vulnerable to DHT — are where you'll see the most visible change. Three levels of defense, working in concert. This is what a considered formula feels like.