WHAT IS DHT & HOW DOES IT AFFECT HAIR?

By HWB Editorial

Scalp Science · 6 Min Read · August 2026

This article explores how DHT can influence follicle miniaturisation, thinning and hair loss, and where targeted hair care can fit.

Hair thinning does not always begin with obvious hair loss.

Sometimes, the change is gradual. Strands become finer, the hairline appears less dense, or the scalp becomes more visible over time. For some people, DHT and hair loss are part of that picture.

DHT, short for dihydrotestosterone, is a naturally occurring androgen hormone produced in the body. It has important physiological functions, while its effect on hair can differ considerably depending on the sensitivity of individual follicles.

DHT-related pattern hair thinning can affect both men and women, although the way it appears is often different.

Understanding that distinction helps explain why some forms of thinning develop progressively, and why supporting the hair requires more than simply addressing visible shedding.

WHAT IS DHT AND WHY DOES IT MATTER FOR HAIR?

DHT is produced when testosterone is converted by an enzyme called 5-alpha-reductase.

For genetically susceptible follicles, DHT can influence the follicle over time. In male pattern hair loss, sensitivity to DHT is a well-established part of the process. The relationship between androgens and female pattern hair loss is more complex, and many women with female pattern hair loss have normal circulating androgen levels.

Where follicles are sensitive, repeated exposure can contribute to follicle miniaturisation, causing the follicle to produce progressively finer and shorter hairs.

This is one reason DHT hair loss can develop gradually rather than appearing overnight.

Genetics also matter. Follicles across the scalp do not respond identically, which is why pattern hair loss tends to affect particular areas rather than the entire scalp uniformly.

HOW DOES DHT CAUSE HAIR THINNING?

The visible effect of DHT is closely connected to follicle miniaturisation.

A healthy terminal hair follicle can produce a substantial strand through its normal growth cycle. In a DHT-sensitive follicle, successive cycles can produce increasingly finer hairs.

Over time, this can change the appearance of the hair. Individual strands become finer, overall density decreases, and previously full areas can begin to look more transparent.

The process is particularly important because hair thinning is not always the same as hair shedding.

A period of increased hair fall can follow stress, illness, nutritional inadequacy or other changes affecting the hair cycle. DHT-related pattern hair loss is more closely associated with progressive miniaturisation of susceptible follicles.

The distinction is useful: one concerns how much hair is being shed, while the other concerns how the follicle is producing the next generation of hair.

HOW DOES DHT-RELATED HAIR LOSS DIFFER IN MEN AND WOMEN?

DHT-related pattern hair loss can look quite different in men and women.

In men, hereditary pattern hair loss commonly begins around the temples and frontal hairline, and may progress towards the crown and top of the scalp.

In women, the more typical pattern is diffuse thinning across the top of the scalp, often with a widening central part and reduced overall density. The frontal hairline is generally preserved.

The biology is not identical either.

DHT sensitivity has a clearly established role in male pattern hair loss. In female pattern hair loss, the role of androgens is less certain, and many women have normal androgen levels. This is why female pattern hair loss should not automatically be attributed to DHT.

This distinction matters when looking at DHT hair loss in women. A widening part or diffuse thinning can have several possible causes, and identifying the pattern is an important first step.

CAN DHT AFFECT THE ANAGEN PHASE?

The relationship between DHT and the hair growth cycle becomes particularly relevant in DHT-sensitive follicles.

Anagen is the active growth phase, when the follicle is producing the hair fibre. In DHT-sensitive follicles, DHT can contribute to a progressively shorter and less productive growth phase, alongside follicle miniaturisation.

This means DHT-focused hair care and anagen-phase support can be considered complementary parts of a broader hair-growth approach.

HWB combines AnaGain™ and Plant Sterols for anagen-phase supporting care, alongside Biotin, Caffeine and L-Carnitine Tartrate.

The intention is to support the growth-focused side of the formula while DHT-focused ingredients address another relevant aspect of root care.

Hair growth is rarely governed by one mechanism.

WHICH INGREDIENTS SUPPORT DHT-FOCUSED HAIR CARE?

The term DHT blocker is widely used in hair care, although cosmetic ingredients should not be presented as equivalent to prescription treatments that directly inhibit DHT production.

Instead, certain cosmetic ingredients are selected for their role in formulas designed around DHT-focused scalp and hair care.

HWB’s approach brings together targeted DHT-focused and growth-phase supporting actives across the scalp-care ritual.

The Pre-Shampoo Scalp Whip Cream combines Procapil™ · AnaGain™ · Biotin, bringing root-focused and growth-phase support into the first step of the ritual.

The Hold The Hairline Biotin Shampoo combines Saw Palmetto · AnaGain™ · Biotin · Caffeine · L-Carnitine Tartrate · Plant Sterols for DHT-focused and growth-phase care, while Niacinamide supports the scalp and Rice Peptides · Quinoa Proteins · Silk Proteins support the hair fibre, helping maintain strength, softness and manageability.

The Hair Dreams Are Made Of This Hair Oil extends the DHT-focused botanical approach with Procapil™ · Saw Palmetto · Rosemary · Black Seed · Bhringraj · Ginseng · Pumpkin Seed · Nettle & More.

Together, the formulas bring targeted care across the scalp, roots and hair fibre, supporting DHT-focused care · growth-phase support · hair fall care · scalp health · strength and nourishment throughout the ritual.

This is where a multitasking approach becomes relevant. Rather than treating hair growth and DHT as completely separate conversations, the formula considers both within the same ritual.

WHAT DOES DHT MEAN FOR YOUR HAIR?

DHT can be an important factor in progressive pattern hair thinning when follicles are genetically sensitive to its effects, and pattern hair loss can affect both men and women.

Understanding DHT, follicle miniaturisation and the anagen phase gives a clearer picture of why some forms of thinning develop gradually and why supporting the hair growth cycle can be relevant alongside DHT-focused care.

A considered approach works from within and from without: supporting the body's nutritional foundations while giving the scalp, follicles and hair fibre purposeful external care.

For HWB, that means bringing together Procapil™, Saw Palmetto, Rosemary, Black Seed, Bhringraj, Ginseng, Pumpkin Seed and Nettle for DHT-focused support, alongside AnaGain™ · Plant Sterols · Biotin · Caffeine · L-Carnitine Tartrate for anagen-phase and growth-focused care.

The goal is not to reduce hair thinning to a single hormone.

It is to understand the follicle more completely, then support it from more than one direction.

WHAT IS DHT & HOW DOES IT AFFECT HAIR?

WHAT IS DHT AND WHY DOES IT MATTER FOR HAIR?

HOW DOES DHT CAUSE HAIR THINNING?

HOW DOES DHT-RELATED HAIR LOSS DIFFER IN MEN AND WOMEN?

Fuller hair starts with keeping what you already have.

CAN DHT AFFECT THE ANAGEN PHASE?

WHICH INGREDIENTS SUPPORT DHT-FOCUSED HAIR CARE?

USED IN PRACTICE

The Hair Dreams Are Made Of This Hair Oil

The Scalp Supreme Set

The Scalp Supreme Set + The HWB 100% Pure Silicone Scalp Massage Comb

WHAT DOES DHT MEAN FOR YOUR HAIR?

WORTH READING NEXT

ANAGAIN™ FOR HAIR: HOW IT SUPPORTS THE HAIR GROWTH CYCLE

ROSEMARY OIL FOR HAIR: GROWTH, BENEFITS & HOW IT WORKS

WHAT IS BIOTIN SHAMPOO, AND WHAT CAN IT DO FOR YOUR HAIR?

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WHAT IS DHT & HOW DOES IT AFFECT HAIR?

WHAT IS DHT AND WHY DOES IT MATTER FOR HAIR?

HOW DOES DHT CAUSE HAIR THINNING?

HOW DOES DHT-RELATED HAIR LOSS DIFFER IN MEN AND WOMEN?

Fuller hair starts with keeping what you already have.

CAN DHT AFFECT THE ANAGEN PHASE?

WHICH INGREDIENTS SUPPORT DHT-FOCUSED HAIR CARE?

USED IN PRACTICE

The Hair Dreams Are Made Of This Hair Oil

The Scalp Supreme Set

The Scalp Supreme Set + The HWB 100% Pure Silicone Scalp Massage Comb

WHAT DOES DHT MEAN FOR YOUR HAIR?

WORTH READING NEXT

ANAGAIN™ FOR HAIR: HOW IT SUPPORTS THE HAIR GROWTH CYCLE

ROSEMARY OIL FOR HAIR: GROWTH, BENEFITS & HOW IT WORKS

WHAT IS BIOTIN SHAMPOO, AND WHAT CAN IT DO FOR YOUR HAIR?