Kombucha is a fermented tea-derived ingredient containing organic acids, polyphenols, vitamins, and microbial metabolites used in skincare for antioxidant and skin-conditioning effects. It is valued for its potential to support skin barrier function and provide mild exfoliating and brightening benefits.
| Reported effect | How often | Notes |
|---|---|---|
Mild skin irritation or redness | Uncommon | May occur due to organic acid content, especially on sensitive skin. |
Stinging or tingling on application | Uncommon | Linked to acidic pH of fermented extracts. |
Allergic contact dermatitis | Rare | Sensitization to fermentation byproducts or tea components possible. |
Acne or breakouts | Rare | Reported anecdotally; not well established in controlled studies. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.