Skincare While on Isotretinoin: How to Handle the Dryness

On isotretinoin, your skincare job changes completely: you are no longer treating acne, you are protecting a barrier that has lost most of its oil. Strip every exfoliating active, switch to a gentle cleanser, layer a humectant serum under a rich moisturiser, and wear sunscreen daily. Simplicity is the whole strategy.

Important: isotretinoin is a prescription-only medicine with serious contraindications, including in pregnancy. Nothing here is medical advice, and nothing here replaces your dermatologist. This guide covers only the skincare side — what to use on your face while your doctor manages the treatment.

What does isotretinoin actually do to your skin?

Isotretinoin works by dramatically shrinking sebaceous gland size and reducing how much sebum those glands produce. That is the entire mechanism behind its effect on acne — and it is also the entire reason for its side effects.

Sebum is not just grease. It is a core component of the skin's surface film, and it slows how fast water evaporates from the skin. Remove most of it and you get a predictable cluster of effects: tightness, flaking, sensitivity to products that never used to sting, chapped lips, and skin that looks dehydrated even when it is not dry by skin type. Understanding the difference between dry and dehydrated skin makes the fix much more obvious: you are treating water loss, not just lack of oil.

When do the side effects peak?

Dryness follows a fairly consistent arc, and knowing it stops you from panicking in week three or giving up in month two.

What should you stop using?

Everything that works by exfoliating, drying or dissolving oil should come out of your routine on day one. Your medication is already doing far more than any topical could, and stacking them is how people end up with a compromised barrier on top of an already stripped one.

• Salicylic acid, glycolic acid, lactic acid, mandelic acid — all exfoliating acids, in serums, toners and face washes.
• Benzoyl peroxide — drying and highly irritating on isotretinoin-thinned skin.
• Topical retinoids — adapalene, tretinoin, retinol. You are already on an oral retinoid.
• Physical scrubs, cleansing brushes, clay masks, pore strips.
• High-strength vitamin C in a low-pH base, which commonly stings on compromised skin.
• Alcohol-heavy toners and "oil-control" face washes — you no longer have oil to control.

Also postpone waxing, threading on the face, chemical peels, lasers and microneedling for the duration of your course and for a period afterwards that your dermatologist will specify — skin is more fragile and slower to heal during treatment.

What should your routine look like instead?

Three to four products, applied gently, twice a day. That is genuinely it — the discipline here is in what you leave out.

Two details do most of the work. First, apply the humectant serum to damp skin: hyaluronic acid draws water, and it works best when there is water at the surface to draw. Second, seal it — a humectant on its own, left uncovered in dry air, can leave skin feeling tighter, not softer. That serum-then-moisturiser pairing is the mechanism, and it is why the two products are worth using together rather than picking one. Our guide to using a hyaluronic acid serum properly covers the technique in more detail.

If your barrier already feels raw — stinging with water, visible redness, rough patches — read what the skin barrier is and how to repair it before adding anything new.

Don't forget lips, eyes and body

Lips are almost always the first and worst-affected area, because they have very few sebaceous glands to begin with. Use a plain occlusive balm, keep one in every bag and by the bed, and reapply far more often than feels reasonable — several times an hour is normal in the first weeks. Avoid tinted, flavoured or menthol balms, which tend to sting.

Eyes get dry too, and contact lens wearers often find lenses uncomfortable mid-course; ask your doctor about lubricating drops rather than pushing through. Nasal dryness and occasional nosebleeds are common for the same reason. On the body, switch to a lukewarm, shorter shower, a non-foaming wash, and a body lotion applied to damp skin straight after.

Why does sun protection matter more on isotretinoin?

Isotretinoin increases photosensitivity, so the same sun exposure produces more burning and more pigmentation than it did before. On Indian skin, the visible outcome is usually tanning and dark patches rather than a red burn — which makes it easier to ignore and just as worth preventing.

Wear a broad-spectrum SPF 50 every morning, indoors-and-out, and reapply if you are outdoors. Choose a hydrating rather than a mattifying formula; the oil-control sunscreen you loved when your skin was oily will feel unpleasant now. Our guide to applying sunscreen properly covers quantity, which is where most people fall short.

What happens after the course?

Sebum production returns gradually over several weeks to a few months, and skin slowly stops feeling tight. Resist the urge to jump straight back to a full actives routine. Reintroduce one active at a time, two to three nights a week, with at least two to four weeks between additions, and keep the moisturiser step permanently — a lot of people find their skin behaves better long-term when they do. Your dermatologist will advise on when exfoliating acids, retinoids and any procedures are appropriate again.

FAQ

Can I use salicylic acid while on isotretinoin?

No — not unless your dermatologist has specifically told you to. Isotretinoin already reduces sebum and increases cell turnover, and adding an exfoliating acid on top commonly causes stinging, peeling and a damaged barrier without any added benefit.

Is niacinamide safe to use on isotretinoin?

Niacinamide is generally well tolerated because it supports the barrier rather than exfoliating, and many people use it through their course without issue. It is still worth mentioning to your dermatologist, and worth patch testing, since tolerance thresholds drop on treatment.

Why are my lips so dry and what actually helps?

Lips have very few oil glands, so they show sebum suppression first. A plain, thick occlusive balm reapplied very frequently is the only thing that reliably helps. Skip flavoured, tinted and menthol balms, which sting on cracked lips.

Should I stop moisturising if I get an initial breakout?

No. An early flare in the first weeks is a recognised pattern and is not caused by your moisturiser. Reducing hydration at that point tends to make the skin more irritated, not clearer. Keep the routine simple and speak to your dermatologist if the flare is severe.

Can I wear makeup on isotretinoin?

Yes, though it may cling to flaky patches. Moisturise well first, choose hydrating rather than matte or long-wear formulas, and remove it with a gentle cleanser rather than a scrub or a cleansing brush.

How long until my skin stops feeling this dry?

Dryness typically peaks around months two to four and then plateaus. It resolves gradually after the course ends as sebaceous glands recover — usually over several weeks to a few months, not overnight.