If you're losing your hair, one three-letter hormone is almost certainly behind it: DHT. Understand what it is and what it does, and the entire confusing world of hair loss treatments suddenly organises itself into something that makes sense. You stop buying shampoos. You start making decisions.
Here's the plain-English version, without the biochemistry lecture.
DHT in sixty seconds
DHT stands for dihydrotestosterone. It's made from testosterone by an enzyme called 5-alpha reductase, which sits in various tissues around your body including your scalp.
DHT is a powerful androgen, considerably more potent at binding to androgen receptors than testosterone itself. During puberty it drove your facial hair, your voice deepening, your body hair. It's not a rogue hormone or a defect. It's a normal, functional part of male physiology, and men with low DHT have their own set of problems.
The trouble is entirely specific to what it does to certain hair follicles on your head.
Miniaturisation: how thick hair becomes no hair
In men with male pattern baldness (the medical name is androgenetic alopecia), follicles at the hairline and crown carry androgen receptors that react badly to DHT. Every time DHT binds to one of those receptors, it triggers a cascade that shortens the follicle's growing phase and shrinks it very slightly.
Do that across hundreds of growth cycles over years, and you get miniaturisation. The follicle doesn't die overnight. It produces a slightly thinner, shorter, weaker hair each cycle. Thick, pigmented terminal hairs gradually become fine, pale vellus hairs: the sort of fuzz that's technically hair but covers nothing. Eventually some follicles stop producing anything visible at all.
This explains two things that confuse men constantly.
First, why hair loss creeps rather than crashes. You don't lose hair, you lose hair quality, slowly, until one day the accumulated loss of quality reads as loss of hair. That's why you can't pinpoint when it started.
Second, why early intervention matters so much. A shrinking follicle is a working follicle, and working follicles can respond if you change their conditions. A follicle that's been dormant for a decade often can't. The window is real, and it closes quietly.
Why your mate has more DHT and more hair than you
Here's the counterintuitive bit that trips everyone up.
It's not about how much DHT you have. Men with high DHT keep full heads of hair. Men with unremarkable DHT go bald at 24. What matters is how sensitive your follicles are to it, and that sensitivity is genetic.
This is why getting a hormone panel done rarely helps. Your DHT can come back completely normal while your follicles are being systematically dismantled by it, because the problem was never the quantity. It's the receptors.
And no, it's not just from your mother's father. That myth persists because one relevant gene, the androgen receptor gene, sits on the X chromosome, which you get from your mum. But male pattern baldness is polygenic: multiple genes from both sides of your family contribute. Looking at your dad tells you something. It doesn't tell you everything, and neither does your grandad.
It also explains why your beard is thriving while your crown isn't. Different follicles, different receptor behaviour. DHT stimulates beard and body hair growth while shrinking scalp follicles. Same hormone, opposite instructions, depending entirely on the follicle receiving them. Biology has a sense of humour.
What DHT has nothing to do with
Worth clearing up, because the internet is full of this.
Hats don't cause hair loss. Neither does washing your hair, shampoo in general, wearing your hair long, wanking, protein powder, or a lack of blood flow that a scalp massage could fix. Testosterone levels don't predict baldness. Being bald doesn't mean you have more testosterone, and it doesn't mean you have less.
Stress can trigger a temporary shed (telogen effluvium), which is a different mechanism and usually recovers. It doesn't cause pattern baldness, though it can make an existing pattern more obvious sooner.
The logic of every DHT-based treatment
Once you know the mechanism, every legitimate treatment on the market sorts into two categories, and the marketing stops working on you.
Category one: reduce the DHT. Less DHT reaching sensitive follicles means less pressure shrinking them. This addresses the cause.
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Finasteride. A prescription 5-alpha reductase inhibitor that reduces serum DHT by around 70%. The most potent option available, licensed for men, with decades of data behind it. Effective for the majority. A minority experience sexual side effects, which is why the decision deserves the actual numbers rather than forum panic: in the original trials, around 3.8% of men on 1mg reported a sexual side effect versus around 2.1% on placebo. Covered properly in our finasteride article.
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Natural 5-alpha reductase inhibitors. The same mechanism, gentler. Saw palmetto has been shown in research to help reduce DHT levels by up to 30%. Pumpkin seed oil, also studied on this pathway, was linked to a 40% increase in mean hair count over 24 weeks in a 2014 randomised placebo-controlled trial (Cho et al.) at 400mg daily.
Category two: stimulate the follicles anyway. Minoxidil improves blood flow and extends the growing phase without touching DHT at all. It pushes follicles to perform despite the hormonal environment, which is why gains reverse when you stop.
Everything else, and I mean essentially everything else on the shelf, is either supporting the scalp environment (ketoconazole, reasonable), addressing a deficiency you probably don't have (biotin, mostly pointless unless you're actually deficient), or marketing.
Where to start
Our Hair Growth Softgels sit in category one: 400mg pumpkin seed oil, the exact dose from the 2014 study, plus 300mg saw palmetto, within the range used in research. Two ingredients with real human evidence, at the amounts that evidence used, targeting DHT daily from the inside. No biotin filler, no proprietary blend hiding a dusting of twelve things.
Is it as potent as finasteride? No, and anyone telling you otherwise is lying to you. It's a gentler mechanism, which is precisely why some men choose it, and precisely why it isn't for everyone.
The bottom line is simple arithmetic. DHT plus sensitive follicles plus time equals hair loss. You can't change your genetics, and time only runs one direction. DHT is the only variable in that equation you can actually pull, and the earlier you pull it, the more follicles are still in a state where pulling it works.