Last updated: August 2026

Hormone therapy changes hair slowly, in a sequence set by the hair growth cycle rather than by the dose. Feminising therapy (oestrogen plus an androgen blocker) usually softens and slows body and facial hair over 6 to 24 months and often reduces scalp oiliness, which can leave hair feeling drier. Masculinising therapy (testosterone) usually increases body and facial hair and scalp oil over a similar period, and can trigger pattern hair loss in people who are genetically predisposed. A good transgender hair care routine adapts to those two shifts: adjust wash frequency to your new oil level, protect the hair from heat and bleach while it changes, and take any actual hair loss to your clinician rather than to a shampoo aisle.

How does hormone therapy actually change your hair?

Hormone therapy changes hair by changing the androgen signal reaching the follicle. Androgens such as testosterone and its more potent form dihydrotestosterone (DHT) make body and facial hair thicker, darker and longer-growing, while on a genetically susceptible scalp they do the opposite and shrink follicles over successive cycles. Shift the androgen level and both effects shift with it.

Two details explain almost everything people find confusing about the timeline.

First, follicles in different body areas respond to androgens in opposite directions. The same hormone that thickens a beard thins a susceptible scalp. That is why a person on testosterone can gain facial hair and lose hairline at the same time, and why someone on oestrogen can see body hair soften while an existing receding hairline stays exactly where it is.

Second, each follicle only responds when it starts a new cycle. Hair grows in phases: anagen, the active growing phase, which lasts 2 to 6 years on the scalp but only weeks to months on the body; catagen, a short transition; and telogen, a resting phase before the hair sheds. A hormonal change cannot rewrite a hair that is already growing. It changes the instruction given to the next one.

What changes on feminising hormone therapy?

Feminising hormone therapy, typically oestrogen combined with an androgen blocker, gradually makes body and facial hair finer, lighter and slower to grow, and reduces scalp and skin oiliness. Existing scalp hair loss may slow or stabilise, but established pattern loss does not usually reverse on hormones alone. Most visible change happens between 6 and 24 months.

The commonly cited timelines, including those in the World Professional Association for Transgender Health Standards of Care (version 8, 2022), describe body hair change beginning around 3 to 6 months and continuing to develop for up to 3 years. Facial hair is the slowest and most stubborn, which is why many people still use electrolysis or laser alongside hormones.

The practical hair care consequence is dryness. Less sebum means less natural conditioning travelling down the hair shaft, so hair that used to look greasy on day two may now look dull and feel rough on day four. Most people need to wash less often and condition more thoroughly than they used to. If you want the detail on the loss side specifically, our guide to transgender hair loss and how HRT affects it covers what hormones can and cannot do.

What changes on masculinising hormone therapy?

Testosterone increases body and facial hair growth, makes existing hair coarser and darker, and raises sebum production on the scalp and skin. In people with a family history of male pattern baldness, it can also start or accelerate temple and crown thinning, usually noticeable after the first 12 to 24 months rather than immediately.

Sequence matters here. Facial hair usually starts as patchy growth on the upper lip and chin from around 3 to 6 months and continues filling in for up to 5 years. Scalp changes, when they happen, come later. Increased oiliness often arrives first and is the most common early complaint, along with acne.

If you notice recession at the temples or a widening parting, that is androgenetic alopecia, the same mechanism described in our explainer on what triggers androgenic alopecia and in our breakdown of the stages of pattern hair loss. It is worth raising early with your clinician, because the options that have real evidence behind them are prescription or pharmacy decisions, not cosmetic ones, and they work far better at holding on to hair than at bringing it back. Our piece on finasteride and transgender hair loss sets out the trade-offs to discuss, including the fact that an androgen-lowering medicine may work against masculinising goals.

Does hormone therapy change your hair texture?

Many people report texture changes on hormone therapy, but the firm evidence is limited. Hair diameter can change modestly as follicles thicken or thin, and a change in scalp oil dramatically changes how hair behaves. Reports of curl pattern changing are common anecdotally and poorly documented in research, so treat any promise to predict it with caution.

Before assuming hormones changed your curl, rule out the far more common explanations:

• Oil level changed, not the hair. Drier hair has more visible frizz and holds less weight, so waves look tighter and less defined.
• Length changed. Growing hair out from short lets curl pattern show for the first time. It was always there.
• Damage accumulated. Bleach, box dye and daily straightening all alter how hair behaves, and transitions often involve a lot of all three at once.
• Products changed. Moving from a stripping shampoo to a conditioning one, or the reverse, changes texture within a single wash.

What washing routine suits hair during hormone therapy?

Match wash frequency to your current sebum level and re-check it every few months, because the level is moving. On oestrogen and androgen blockers most people drift towards washing every 3 to 4 days with a gentle sulphate-free shampoo. On testosterone many move to daily or every-other-day washing as oil production rises.

The mechanics that matter more than the brand on the bottle:

• Shampoo the scalp, condition the lengths. Shampoo is a scalp product. Conditioner is a mid-length and ends product. Swapping those around is why some people have a greasy scalp and dry ends at the same time.
• Use your fingertips, not your nails. A minute of firm fingertip massage cleans better than scrubbing and is far gentler on a sensitive scalp.
• Lukewarm water, cool rinse. Hot water strips more sebum, which is the last thing a drying scalp needs.
• Do not over-correct oiliness. Aggressive daily degreasing tends to leave the scalp irritated. Gentle cleansing more often beats harsh cleansing less often.
• Watch for irritation. Flaking, itching, soreness or persistent redness is a scalp condition to get looked at, not a signal to buy a stronger shampoo.

How should you handle heat styling, bleach and colour?

Use a heat protection spray every single time you use a dryer, straighteners or wand, keep tools at the lowest temperature that does the job, and space bleaching sessions at least 8 weeks apart. Transition periods often stack daily heat styling on top of colour changes, and that combination, not hormones, causes most of the breakage people blame on HRT.

A few specifics that make a visible difference:

• Drop the temperature. Fine or previously bleached hair rarely needs more than 150 to 170 degrees Celsius. Many tools default far higher.
• One pass, not five. Repeated passes over the same section do most of the damage.
• Dry to 80 percent before straightening. Ironing damp hair is the fastest route to snapped mid-lengths.
• Bleach with a professional if you can. Especially for a big colour change. A stylist can strand test and stage it.
• Give wigs and extensions a break. Constant tension at the same points can cause traction hair loss over time, which is separate from anything hormonal and is largely preventable.

Protect Me® Heat Protection Spray, £13.95

A leave-in spray with panthenol and sunflower oil that shields hair up to 230 degrees Celsius and helps control frizz and colour fade. A sensible everyday buy if you are heat styling while your hair is also changing. Cosmetic care only, it does not affect hair growth.

See Protect Me heat protection spray

How do you deal with dryness and breakage?

Treat dryness with a weekly deep conditioning mask, trim split ends every 8 to 12 weeks, detangle wet hair with a wide tooth comb from the ends upward, and sleep on silk or satin. Dryness and breakage are cosmetic problems with cosmetic solutions, which makes them the part of the picture you can genuinely fix from the bathroom shelf.

Breakage and shedding are not the same thing and the difference decides what you do next. Broken hairs are short, blunt-ended fragments that appear on the shoulders and in the sink, and the length is uneven. Shed hairs come out full length with a small pale bulb at the root. Breakage points to damage and handling. Shedding points to the follicle, and that is a clinical question.

Masque Me® Deep Conditioning Hair Mask, £24.95

An 8 in 1 weekly treatment with argan oil, provitamin B5 and hydrolysed lupine protein, formulated to soften dry hair and reduce breakage so lengths hold together while you grow them out. Cosmetic conditioning, not a hair loss treatment.

See Masque Me hair mask

Which routine fits which direction of transition?

When should you speak to a clinician instead of changing shampoo?

Speak to your GP or gender service about hair rather than buying products if you see patchy bald spots, sudden heavy shedding, a scalp that is sore, scaling or scarring, rapid recession at the temples, or hair loss alongside fatigue, weight change or low mood. Those point to something a product cannot address, and several are far easier to treat early.

Bring specifics to the appointment. Photographs taken in the same light every month, a note of when the shedding started, your current hormone regimen and doses, any other medicines, and any recent illness, surgery or significant weight change. Thyroid problems and iron deficiency are common, easily tested and treatable causes of shedding that have nothing to do with hormone therapy, and they get missed when everything is attributed to transition.

Nothing in a shampoo bottle, including ours, treats or reverses hair loss. Cosmetic products can improve how hair looks and feels, reduce breakage and support scalp comfort. That is a genuinely useful job, and it is a different job from the medical one.

Frequently asked questions about transgender hair care

How long does it take for hair to change on hormone therapy?

Noticeable body hair change usually begins between 3 and 6 months and continues developing for up to 3 years. Scalp changes are slower because scalp hair grows for 2 to 6 years per cycle, so a follicle only responds once it starts a new cycle. Most people judge results at 12 to 24 months.

Will oestrogen regrow hair I have already lost?

Usually not. Feminising hormone therapy can slow or stabilise ongoing androgenetic hair loss by lowering androgen activity, and some people see modest thickening. Follicles that have already miniaturised substantially rarely return to full size on hormones alone. Discuss expectations and any additional options with your clinician.

Does testosterone always cause baldness?

No. Testosterone only causes pattern hair loss in people who carry the genetic sensitivity for it, which is why some people on testosterone keep a full hairline indefinitely. Family history on both sides is the best available predictor. If you are concerned, raise it before starting rather than after thinning appears.

How often should I wash my hair during transition?

Match it to your current oil level and expect that level to move. On oestrogen and androgen blockers, most people settle around every 3 to 4 days as sebum falls. On testosterone, many shift to daily or alternate day washing. Reassess every few months rather than sticking to an old habit.

Can hair products help with hair loss on HRT?

Cosmetic products can improve condition, shine, volume and breakage, and can support scalp comfort. They cannot change the hormonal signal reaching the follicle, so they do not treat or reverse hair loss. For actual loss, the evidence-backed options are prescription or pharmacy medicines discussed with a clinician.

Is scalp massage worth doing?

Scalp massage is pleasant, low risk and helps with stress and product distribution, and small studies have suggested modest effects on hair thickness. The evidence is weak and the trials are small, so treat it as a nice habit rather than a treatment. It costs nothing, which is the strongest argument for it.

Does laser or electrolysis affect scalp hair?

No, both are localised treatments that only affect the follicles they target, typically on the face, neck and body. They have no effect on untreated scalp hair. Tell the practitioner about your hormone regimen, since hormone changes can alter how facial hair responds between sessions.

What can I do about a receding hairline while I decide on treatment?

Styling helps in the short term: a softer fringe, a side parting rather than a centre parting, avoiding tight pulled-back styles, and hair building fibres for events. None of these change the underlying loss, so use the time to get a clinical opinion rather than as an alternative to one.