What it does
- Gently exfoliates by digesting dead surface skin proteins.
- An acid-free, non-abrasive way to smooth and brighten.
- Popular in wash-off masks and powders.
How it works
Papain is a proteolytic enzyme widely documented to loosen and digest keratin in dead surface cells, giving gentle enzymatic exfoliation. Enzymes are dosed by activity units rather than simple percentage, need suitable pH/temperature, and are often kept anhydrous (powder) until use. Papain can be a sensitiser for some.
Use level
- Typical use level
- typically low levels per activity units
Dosed by enzyme activity rather than a fixed percentage; commonly used in wash-off masks and anhydrous powders that activate on mixing with water.
Formulation considerations
- Activity-dependent; keep anhydrous or well-stabilised until use.
- Needs suitable pH and temperature to stay active.
- Can be a sensitiser; patch-testing advised.
What it pairs with & what to avoid
Pairs well with
- Gentle hydrators
- Soothing actives (post-exfoliation)
Use with care / avoid
- Sensitisation potential
- Harsh conditions that denature the enzyme
Regulatory status
Papain is listed in the EU CosIng database and is a well-established enzymatic exfoliant.
Common questions
How does papain exfoliate?
It is a papaya enzyme that digests dead surface skin proteins, giving gentle, acid-free exfoliation.
Is papain gentle?
It is gentle and non-abrasive, though it can be a sensitiser for some — patch-testing helps.
Why is papain often a powder?
Enzymes stay most active when kept dry until mixed with water at use.