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Ingredient pairing

Can you mix Betaine Salicylate and Lactic acid?

Same answer whichever way you searched it: Lactic acid and Betaine Salicylate.

Use with careUse these with care.

Betaine SalicylateLactic acid

Two exfoliants at once is usually one too many, and a common cause of irritation.

Do this: Pick one, and alternate days if you want to use both.

☀ Morning

Nothing here

☾ Evening

Betaine SalicylateLactic acidLactic acid makes skin more vulnerable to UV.

Use on alternate nights, not the same evening.

Betaine SalicylatePromising, not proven
Acne6
Efficacy5
Anti-aging2

Skip if: pregnancy, very sensitive, compromised barrier

Ask your doctor in pregnancy
Lactic acidSolid and proven
Efficacy8
Hydration6
Anti-aging5

Skip if: very sensitive, compromised barrier

Ask your doctor in pregnancy

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Use these with care.

Two exfoliants at once is usually one too many, and a common cause of irritation.

Written by Maya FaourHow we score →

Which one goes first?

Not on the same night

Use Betaine Salicylate and Lactic acid on alternate evenings rather than layering them together.

Betaine Salicylate and Lactic acid: Use with care. Use these with care. Two exfoliants at once is usually one too many, and a common cause of irritation. Which goes first: Not on the same night.
The short version, if you want to keep it.

How to introduce Betaine Salicylate and Lactic acid

  1. Patch test each one first: a coin-sized amount on your inner forearm for two or three days, watching for redness or stinging.
  2. Alternate nights: Betaine Salicylate one evening, Lactic acid the next, so your skin only handles one of them at a time.
  3. Start the exfoliant at once or twice a week and increase gradually, giving your skin time to settle between steps.
  4. 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.

There is room for both here, as long as you build up gently and let your skin set the pace.

For your skin type Sensitive skin should ease in gently: Betaine Salicylate and Lactic acid can be mildly irritating on their own, and more so alongside another active. On the upside, Lactic acid leans hydrating or soothing, which helps buffer the rest.

Choosing between them instead? Betaine Salicylate vs Lactic acid →

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More pairings with Betaine Salicylate

More pairings with Lactic acid

Betaine Salicylate and Lactic acid, answered

Can you mix Betaine Salicylate and Lactic acid?

Use these with care. Two exfoliants at once is usually one too many, and a common cause of irritation. Pick one, and alternate days if you want to use both.

Should you use Betaine Salicylate and Lactic acid in the morning or at night?

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

How should you introduce Betaine Salicylate and Lactic 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: Betaine Salicylate one evening, Lactic acid the next, so your skin only handles one of them at a time. Start the exfoliant at once or twice a week and increase gradually, giving your skin time to settle between steps. 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. There is room for both here, as long as you build up gently and let your skin set the pace.

What else should you not mix with Betaine Salicylate?

Betaine Salicylate is best kept apart from Retinol, Retinal, Hydroxypinacolone Retinoate, Retinyl Palmitate. Introduce any new active one at a time.

Sources

Plus how we reach every verdict: how we score →

General guidance, not medical advice. When in doubt, introduce one product at a time, andhere is when to see a dermatologist instead.