Ingredient pairing

Can you mix Adapalene and Glycolic acid?

ClashThese clash.

Retinoids and exfoliants both speed up cell turnover, so together they tend to stack irritation and can wear down your barrier.

Do this: Use them on alternate nights rather than the same evening.

☀ Morning

Nothing here

☾ Evening

AdapaleneGlycolic acid

Use on alternate nights, not the same evening.

AdapaleneWorth paying for

Acne10

Efficacy9

Anti-aging7

Skip if: pregnancy, breastfeeding, very sensitive

Not in pregnancy

Glycolic acidWorth paying for

Efficacy9

Anti-aging7

Brightening4

Skip if: sensitive, compromised barrier, rosacea

Ask your doctor in pregnancy

Which one goes first?

Not on the same night

Use Adapalene and Glycolic acid on alternate evenings rather than layering them together.

How to introduce Adapalene and Glycolic acid

Patch test each one first: a coin-sized amount on your inner forearm for two or three days, watching for redness or stinging.
Alternate nights: Adapalene one evening, Glycolic acid the next, so your skin only handles one of them at a time.
Ease the exfoliating acid in slowly: start at two nights a week for the first fortnight, then build up only as your skin stays comfortable.
If skin turns tight, flaky, red or starts to sting, drop back a step and let your barrier recover for a few days before pushing on again.

Two strong actives at once is a lot to ask of your skin. Going slow is exactly what keeps this pairing working instead of backfiring.

For your skin type If your skin is sensitive or reactive, take this pair slowly: Glycolic acid is the higher-irritation ingredient here, and using actives close together magnifies that.

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Adapalene and Glycolic acid, answered

Can you mix Adapalene and Glycolic acid?

These clash. Retinoids and exfoliants both speed up cell turnover, so together they tend to stack irritation and can wear down your barrier. Use them on alternate nights rather than the same evening.

Should you use Adapalene and Glycolic acid in the morning or at night?

Keep them to the evening, but on alternate nights rather than together.

How should you introduce Adapalene and Glycolic acid?

Patch test each one first: a coin-sized amount on your inner forearm for two or three days, watching for redness or stinging. Alternate nights: Adapalene one evening, Glycolic acid the next, so your skin only handles one of them at a time. Ease the exfoliating acid in slowly: start at two nights a week for the first fortnight, then build up only as your skin stays comfortable. If skin turns tight, flaky, red or starts to sting, drop back a step and let your barrier recover for a few days before pushing on again. Two strong actives at once is a lot to ask of your skin. Going slow is exactly what keeps this pairing working instead of backfiring.

What else should you not mix with Adapalene?

Adapalene is best kept apart from Salicylic acid (BHA), Lactic acid, Mandelic Acid, Gluconolactone. Introduce any new active one at a time.

Sources

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General guidance, not medical advice. When in doubt, introduce one product at a time.