Ingredient pairing
Can you mix Lactic acid and Papain?
Use with careUse these with care.
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
Lactic acidPapainUse on alternate nights, not the same evening.
Skip if: very sensitive, compromised barrier
Ask your doctor in pregnancySkip if: very sensitive, rosacea, compromised barrier, papaya allergy
Ask your doctor in pregnancyWhich one goes first?
Not on the same night
Use Lactic acid and Papain on alternate evenings rather than layering them together.
How to introduce Lactic acid and Papain
- 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: Lactic acid one evening, Papain the next, so your skin only handles one of them at a time.
- Start the exfoliating acid 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.
For your skin type Sensitive skin should ease in gently: Lactic acid and Papain 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.
Also worth checking
More pairings with Lactic acid
More pairings with Papain
Lactic acid and Papain, answered
Can you mix Lactic acid and Papain?
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 Lactic acid and Papain in the morning or at night?
Keep them to the evening, but on alternate nights rather than together.
How should you introduce Lactic acid and Papain?
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: Lactic acid one evening, Papain the next, so your skin only handles one of them at a time. Start the exfoliating acid 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 Lactic acid?
Lactic acid is best kept apart from Retinol, Retinal, Hydroxypinacolone Retinoate, Retinyl Palmitate. 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.