TL;DR
- HRT often changes oil production and skin texture — routines that worked before may no longer suit your skin
- A simpler foundation — gentle cleansing, ceramide moisturiser, and SPF — gives the skin stability before adding actives
- Reduced sebum means some people experience increased dryness and sensitivity during early HRT — introducing actives one at a time tends to be better tolerated
- There are no evidence-based phase timelines — the right moment to introduce an active depends on your skin, not a calendar
- The data point is your skin, not a generic recommendation
Because HRT often changes oil production and skin texture, some people find that routines that previously worked no longer suit their skin. A simpler routine emphasising cleansing, moisturisation, and photoprotection can provide a stable foundation before adding actives — not because there is an evidence-based prohibition on actives early in HRT, but because skin that is adjusting to new hormonal conditions often responds better to simplicity than to complexity.
What actually changes on HRT
The most clinically significant skin change on feminising HRT is the reduction in sebum output. Androgens — particularly DHT — are potent drivers of sebaceous gland activity. As testosterone suppression takes effect and oestrogen rises, sebum production decreases. For some people this means skin that felt oily for their entire life becomes normal or dry for the first time. For others the change is subtle. The reduction in sebum is probably the most predictable and consistent skin change on HRT, and it is the one most likely to require a change in routine.
Reduced sebum production means that some people experience increased dryness and sensitivity during early HRT. This is a practical clinical observation rather than a mechanistic certainty — not everyone experiences it — but it is common enough to be worth anticipating when thinking about skincare.
The foundation
Regardless of where you are in transition or what your skin is doing, three things belong in every routine:
A gentle, non-stripping cleanser. Foaming cleansers that leave skin feeling tight after washing are removing too much — including barrier lipids. This matters more as sebum decreases, because there is less natural buffering against over-cleansing.
A ceramide-containing moisturiser. As discussed in the ceramide post, this directly supports barrier function and is particularly useful when sebum production is changing.
SPF, applied every morning. UV damage accumulates irreversibly. This belongs in the routine from day one regardless of everything else.
These three things alone will suit most people’s skin at most stages. They are not placeholders until something better can be added — they are the routine.
Adding actives
There are no evidence-based timelines specifying when actives can or cannot be introduced during HRT. The general dermatological principle — introduce one active at a time, assess tolerance, then add the next — applies here as it does everywhere. The reason to be thoughtful rather than impatient is that if two or three new ingredients are introduced simultaneously and the skin reacts, you cannot identify which is responsible.
If dryness or sensitivity has developed after starting HRT, a slower or lower-strength introduction of retinoids in particular tends to improve tolerability. This is not because oestrogen increases retinoid sensitivity in a demonstrable mechanistic sense — it is because skin that is drier than it was will generally tolerate retinoid-induced barrier perturbation less comfortably than skin that is not.
Vitamin C, niacinamide, AHAs, and other actives can be introduced when skin feels stable and the foundation routine is established — but “stable” is a description of your skin, not a point on a calendar. For some people that is weeks into HRT; for others it takes longer. Pre-existing conditions — acne, melasma, rosacea — may require actives from the outset regardless of where HRT timing sits.
What to track
The skin continues to change for years on HRT. Collagen and structural changes are slow and incremental. Sebum stabilises over time. Texture and hydration shift gradually. A routine that suits month three may not suit year two, and the reverse is also true — a routine that felt too active early on may become appropriate as the skin settles.
The most useful thing you can do is pay attention to how your skin responds — to the hormones, to your routine, to environmental changes — and adjust accordingly. Dermatological guidelines are written for populations. Your skin is individual data.
The data point is your skin, not a generic recommendation.
⚠️ Clinical note: The timing recommendations in this post are clinical heuristics rather than evidence-based phases. There are no controlled studies defining optimal skincare sequencing during feminising HRT. The foundation routine described reflects general dermatological principles applied to a context of changing sebum and skin texture — not a protocol specific to trans women.
Sources
- Yeung H, Ragmanoski N, Vance SR Jr. Dermatologic conditions in transgender populations. Dermatol Clin. 2020;38(2):185–192.
- Pochi PE, Strauss JS. Endocrinologic control of the development and activity of the human sebaceous gland. J Invest Dermatol. 1974;62(3):191–201.
- Imperato-McGinley J, Gautier T, Cai LQ, et al. The androgen control of sebum production. Studies of subjects with dihydrotestosterone deficiency and complete androgen insensitivity. J Clin Endocrinol Metab. 1993;76(2):524–528.
