biotech
Persimmon Ferment
A K-beauty-origin fermented active appearing in clean haircare formulations with oil-absorbing and conditioning claims. High tannin content provides the mechanism for astringent, oil-controlling function at the scalp.
Benefits
- Tannin-derived astringency — oil and sebum control
- Antioxidant polyphenol fraction
- Anti-inflammatory
- Postbiotic contribution to scalp microbiome
- Scalp-conditioning activity
Example uses
- Dry shampoo formulations
- Scalp-balancing haircare
- Oil-control scalp treatments
- Scalp serums
- Clarifying hair conditioners
Mechanism of action
Condensed tannins (proanthocyanidins) in persimmon ferment bind protein residues on the scalp surface via hydrogen bonding and hydrophobic interactions, reducing surface oil via protein-tannin complexation (analogous to tannin astringency in food). Polyphenols contribute antioxidant activity and may modulate scalp microbiome composition.
Clinical evidence · Emerging
In vitro tannin activity studies and K-beauty brand data. No independent RCTs for persimmon ferment in haircare.
Effective concentration range
0.5–2%
Formulation notes
Fermentation of persimmon creates a tannin-rich postbiotic filtrate. pH 4–5. Tannin content may interact with iron ions — avoid iron-containing vessels.
Watchouts
High tannin content at concentrated extract levels may cause dryness or irritation. Concentration management important. Active compound profile varies by fermentation process.
Market positioning
Marketed as natural oil-controlling fermented active. The tannin-based oil absorption mechanism is credible; independent clinical data for scalp application is limited.
Comedogenicity
0 / 5
Sensitisation risk
Low
INCI & aliases
Diospyros Kaki Fruit Ferment
diospyros kaki fruit ferment · kaki fruit ferment filtrate · fermented persimmon
Clean beauty perception
Accepted in clean beauty and K-beauty as a natural fermented active in haircare.
Related ingredients
Graph relationships
Timeline