Ingredient glossary
Papain
On your shelf ✓What Papain does for your skin, who it suits, and what to watch for.
INCI: Papain · Also: Papaya Enzyme
In short: Papain delivers enzymatic exfoliation and keratolysis, suits most skin types, and the evidence behind it is limited. One thing to know: clear it with your doctor if pregnant; introduce it gently.
- What it does
- Enzymatic exfoliation, keratolysis
- Best for
- Most skin types
- Watch out
- Clear it with your doctor if pregnant; introduce it gently
- Evidence
- Limited
The molecule
The Glow take
Nice to have, and nothing to overthink.
Papain plays a quiet supporting role, rounding out a formula rather than being the reason you buy it.
— Maya
What it does
- enzymatic exfoliation
- keratolysis
weak evidenceEnzyme peel literature and cosmetic texts describe papain-based peels as providing modest smoothing and pigment benefits at low concentrations with fewer barrier changes than strong acids yet controlled comparative trials are sparse.
On a label: usually effective at 0.1-1%.
Who it's for, and who should skip it
Tends to suit
- normal
- oily
- combo
Approach with care
- very sensitive
- rosacea
- compromised barrier
- papaya allergy
- Clogs poresLow
- Irritation riskModerate
How it fits each skin type
- DrySuits
- CombinationSuits
- OilySuits
- SensitiveTake care
Take extra care if any of these apply to you: rosacea, compromised barrier, papaya allergy.
Where it fits in your routine
Plays well with
- humectants
- soothing agents
Papain, answered
Is Papain safe during pregnancy?
Clear it with your doctor first. Papain is flagged as use-with-caution during pregnancy and breastfeeding, so check with your doctor or midwife before adding it.
Who should avoid Papain?
Approach Papain with care if any of these apply to you: very sensitive, rosacea, compromised barrier, and papaya allergy. Its irritation risk is moderate, so introduce it slowly and patch test first.
What concentration of Papain actually works?
Papain tends to do its job in the 0.1 to 1% range. Much lower and it is likely underdosed.
During pregnancy
Treat Papain as a maybe rather than a yes for now. It is flagged as one to use with caution while pregnant or breastfeeding, so it is worth clearing before you carry on.
When in doubt, check with your doctor or midwife. They outrank any website, including this one.
This, for every label you own
One ingredient is easy. A full label is where it gets confusing. The Ingredient Decoder reads any product and tells you the honest truth, ingredient by ingredient.