Papain
Papain is a natural enzyme extracted from unripe papaya fruit that gently exfoliates and brightens the skin. Commonly used in UK skincare products, it helps remove dead skin cells for a smoother, more radiant complexion without harsh scrubbing.
How it works in skincare
In cosmetics and skincare, papain works as a proteolytic enzyme that breaks down the proteins in the outer layer of dead skin cells, promoting gentle exfoliation and encouraging cell turnover. It is often included in enzyme peels, masks, cleansers and brightening serums where it helps to loosen surface debris and reveal fresher-looking skin beneath, all while being milder than traditional acid exfoliants.
Key benefits
- Gentle enzymatic exfoliation
- Helps brighten dull skin
- Smooths rough texture
- Promotes a more even skin tone
- Softens and conditions the skin
- Suitable for sensitive skin formulations
Best for
dull skin, rough texture, mature skin, sensitive skin, combination skin
Where it comes from
Papain is naturally derived from the latex of unripe green papaya fruit (Carica papaya), a tropical plant native to Central America and now widely cultivated in many tropical regions.
Products with Papain
Not every product on UK Lips lists a full ingredient breakdown — so there may be many more formulas that contain Papain than we can show here. These are the comparisons where we’ve confirmed it in the listed ingredients.