If you’ve been losing hair and looked into treatments, you’ve almost certainly encountered the term DHT. But what exactly is it, how does it cause hair loss, and what can you actually do about it? As a hair transplant surgeon who has treated over 10,000 patients with androgenetic alopecia, let me explain this in plain language.
What is DHT?
DHT stands for Dihydrotestosterone. It’s a hormone — specifically an androgen (male hormone) — that is produced when an enzyme called 5-alpha reductase converts testosterone into DHT. This conversion happens primarily in the scalp, skin, and prostate gland.
DHT is not inherently bad. It plays important roles during fetal development and puberty. The problem arises in people who have a genetic predisposition to androgenetic alopecia — which is the medical term for male or female pattern hair loss.
How Does DHT Cause Hair Loss?
In genetically susceptible individuals, DHT binds to androgen receptors in hair follicles — specifically, follicles on the top and front of the scalp (hence the characteristic pattern of hair loss). When DHT binds to these receptors, it triggers a process called follicular miniaturisation.
Here’s what happens step by step: The anagen (growth) phase of the hair cycle gets progressively shorter. Each successive hair that grows from the miniaturising follicle becomes thinner, shorter, and lighter (more like vellus hair than terminal hair). Eventually, the follicle may become completely dormant. This is why hair loss from DHT is gradual — it happens over years or decades.
Why Only the Top of the Scalp?
One of the most fascinating aspects of androgenetic alopecia is that it affects the top and front of the scalp but spares the back and sides — the “donor zone” we harvest from during hair transplants. The reason is that follicles in the donor zone have different androgen receptor expression — they are genetically programmed to be DHT-resistant. This is also why transplanted hair maintains its growth even after surgery.
Natural Ways to Block DHT
Pharmaceutical DHT blockers like finasteride and dutasteride work by inhibiting 5-alpha reductase. They’re effective, but come with well-documented side effects including sexual dysfunction, depression, and in some cases persistent post-finasteride syndrome (PFS) even after stopping the drug.
Natural 5-alpha reductase inhibitors offer an alternative pathway. Research has validated several botanical ingredients for DHT blocking activity: Saw Palmetto extract (320mg) has shown efficacy comparable to finasteride in some clinical comparisons. Bhringraj (Eclipta alba) — confirmed by a 2024 IJAR study to have the highest 5-alpha reductase inhibition among tested Ayurvedic herbs. Pumpkin Seed Oil at 200mg showed 40% increase in hair count vs 10% for placebo in a randomised controlled trial.
NeoVitals DHT Defence combines all of these with Stinging Nettle Root, Green Tea Extract (EGCG), Mulethi, and Zinc Picolinate — creating a multi-target natural DHT blocking system without pharmaceutical side effects.
The Bottom Line
DHT is the primary hormonal driver of androgenetic alopecia. Blocking its conversion from testosterone — either pharmaceutically or botanically — is the most direct treatment strategy for pattern hair loss. If you’re concerned about the side effects of prescription DHT blockers, there are well-researched natural alternatives. The key is choosing the right ingredients at clinically effective doses.
Written by Dr. Nav Vikram, Hair Transplant Surgeon, NeoGraft Hair Clinic, Chandigarh. 15+ years experience. 10,000+ cases.