Science
Mechanism of Action
This extract primarily functions as a potent antioxidant, effectively neutralizing free radicals and mitigating damage from environmental aggressors like UV radiation and pollution, owing to its abundance of phenolic compounds, vitamins A and C, carotenoids, and tannins. It delivers hydration and nutrition to the skin, enhancing overall health and appearance, while also acting as a skin conditioning agent to restore or improve skin tolerance. Its subtle astringent properties aid in regulating sebum production and diminishing the visibility of pores. Furthermore, it demonstrates photoprotective effects by reducing UV-induced intracellular Reactive Oxygen Species (ROS) production in keratinocyte cells and exhibits anti-adhesive activity against pathogens. The extract also shows potential in refining skin texture, reducing fine wrinkles, and inhibiting tyrosinase, elastase, and collagenase enzymes, thereby contributing to anti-aging and skin brightening effects.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 In vitro studies confirm significant antioxidant capacity, with DPPH radical scavenging activity demonstrating an IC50 of 23 µg/mL in methanol and ethyl acetate fractions. Aqueous extracts, however, showed lower activity with an IC50 exceeding 400 µg/mL.
- 02 Persimmon extracts, particularly rich in carotenoids, were observed to reduce UV-induced intracellular Reactive Oxygen Species (ROS) production in HaCaT keratinocyte cells, exerting photoprotective and regenerative effects without inducing cytotoxicity at tested concentrations.
- 03 A comprehensive review highlights diverse dermatological benefits, including anti-inflammatory, anti-allergic, photo-protective, and anti-wrinkle properties. It also demonstrates activities against tyrosinase, elastase, and collagenase enzymes, indicating potential for skin whitening, reduction in sebum content, and a decrease in the size and number of skin pores.
Transparency
Dusting Analysis
No data available to suggest this ingredient is commonly dusted.
The Formula
Formulation
Stability
Due to its high antioxidant content, Diospyros kaki fruit extract is susceptible to degradation by light and heat. It should be formulated and housed in light and air-proof packaging, away from direct sunlight or excessively warm environments, to maintain its efficacy.
Safety
Safety Profile
Diospyros Kaki fruit extract generally possesses a favorable safety profile and is approved for cosmetic use by regulatory authorities such as the European Cosmetics Regulation. However, specific CIR (Cosmetic Ingredient Review) or SCCS (Scientific Committee on Consumer Safety) assessments for 'Diospyros Kaki Peel Extract' have not been found. A potential consideration is that unripened Diospyros kaki fruit contains astringent tannins that might cause skin sensitization or protein denaturation; it is currently unknown whether the specific form of peel extract used in cosmetics retains these tannins or if processing steps mitigate their presence.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Diospyros Kaki Peel Extract is a valuable multi-functional ingredient, leveraging its potent antioxidant and photoprotective properties to support skin health, combat signs of aging, and enhance overall complexion.
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References
Sources