What is DHT and how does It cause hair loss in women?
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If your hair has been thinning and you're not sure why, DHT might be part of the answer. Here's what it is, how it works and what you can do about it.
What is DHT?
DHT stands for dihydrotestosterone. It is a hormone derived from testosterone. Women produce testosterone too, just in smaller amounts than men. When testosterone is converted by an enzyme called 5-alpha reductase, DHT is produced.
In the right amounts DHT plays an important role in the body. The problem begins when DHT levels rise or when hair follicles become overly sensitive to it which is exactly what happens during hormonal shifts like perimenopause, postpartum recovery and times of chronic stress.
How does DHT cause hair loss?
DHT binds to receptors in the hair follicle and causes it to miniaturise which means the follicle gradually shrinks over time. As it shrinks the growth phase of the hair cycle shortens. Strands grow back finer and more fragile with each cycle. Eventually the follicle may stop producing hair altogether.
This process is called androgenic alopecia and while it is more commonly associated with men it affects a significant number of women particularly those navigating hormonal transitions.
The pattern in women tends to look different to male pattern baldness. Rather than a receding hairline women typically notice a widening part, overall thinning across the crown and a ponytail that feels noticeably less dense than it used to.
Why does DHT increase during hormonal shifts?
DHT sensitivity in women is closely tied to estrogen levels. Estrogen has a protective effect on hair follicles it helps keep DHT in check and supports the growth phase of the hair cycle. When estrogen drops, as it does during perimenopause, postpartum recovery and other hormonal transitions, that protective buffer weakens. DHT activity increases relative to estrogen and follicles begin to feel the effects.
This is why hormonal hair loss in women tends to arrive quietly, a little more in the shower, a parting that looks wider, hair that feels different in your hands and then builds gradually over months.
What triggers elevated DHT sensitivity in women?
Several factors can increase DHT activity or follicle sensitivity:
Declining estrogen during perimenopause or after birth. Chronic stress which raises cortisol and disrupts the hormonal balance that keeps DHT in check. Coming off the hormonal contraceptive pill which can trigger a temporary surge in DHT activity. Polycystic ovarian syndrome which is associated with elevated androgens including DHT. Genetic predisposition, some follicles are simply more sensitive to DHT than others.
Can DHT related hair loss be reversed?
The honest answer is that it depends on how long the follicle has been affected and how sensitive it is. Follicles that have been miniaturising for a short time are more responsive to support than those that have been affected for years. The earlier you start supporting the scalp environment the better the outcome.
What is clear from research is that the scalp environment plays a significant role in how follicles respond to DHT. Reducing scalp inflammation, improving circulation and using ingredients that work at the follicle level can meaningfully slow the process and in some cases support regrowth.
What ingredients help with DHT related hair loss?Carly — Founder, Sunday Drop
Pumpkin seed oil is one of the most researched natural ingredients for DHT support. Rich in zinc and plant sterols it works at the follicle level to support a healthier hormonal environment. Several studies have found it effective in supporting hair density in people with androgenic hair loss.
Rosemary oil has been clinically compared to minoxidil for supporting hair density and is thought to work by improving scalp microcirculation, getting more blood and therefore more nutrients to the follicle.
Black seed oil contains thymoquinone which has notable anti-inflammatory properties. Scalp inflammation is a key driver of follicle stress in DHT related hair loss and calming it creates a better environment for the follicle to recover.
Zinc — whether through diet or topical application via oils like pumpkin seed, Zinc supports follicle repair and helps regulate the enzyme responsible for converting testosterone to DHT.
The Sunday Drop approach to DHT and hormonal hair loss
Restore Scalp Elixir was formulated specifically with DHT related hormonal hair loss in mind. Pumpkin seed oil and black seed oil work together to support a healthier follicle environment and calm the scalp inflammation that accelerates follicle miniaturisation. Rosemary essential oil supports circulation and hair density. Jojoba regulates the scalp's oil balance without disruption.
Nothing in the formula works against what your body is already trying to rebalance. No sulphates. No fillers. No hormone disrupting ingredients.
Used consistently as a weekly scalp ritual - applied, massaged and left to absorb. Restore gives the follicle the environment it needs to recover over time.
The bottom line on DHT and hair loss in women
DHT related hair loss is real, it is common and it is more responsive to consistent scalp care than most people realise. The window of opportunity is earlier rather than later supporting the follicle environment before miniaturisation is advanced gives the best outcome.
If your hair has been feeling different lately- thinner, less dense, more in the shower than feels normal, DHT sensitivity could be part of what's happening. And it is something you can support, gently and consistently, starting with the scalp.
Your ritual starts at sundaydrop.com.au