Science
Mechanism of Action
This ingredient operates via multiple pathways, primarily through its high concentration of Vitamin C and diverse polyphenolic compounds, including oligonol, flavonols, catechins, and procyanidins. These constituents function as potent antioxidants, effectively neutralizing free radicals and safeguarding the skin from oxidative damage while simultaneously supporting vital collagen synthesis. Furthermore, it exhibits anti-inflammatory properties by suppressing the expression of inflammatory factors such as IL-1β, MCP-1, TNF-α, IL-6, COX-2, and IL-8. Oligonol within the lychee juice is also noted to improve skin microcirculation, and the ingredient contributes to restoring the skin's physiological pH.
Research
Clinical Evidence
High confidence0.1%
Key findings
- 01 Clinical evaluation of a standardized Litchi chinensis extract serum at 0.05% concentration showed significantly higher skin lightening efficacy compared to placebo, alongside improvements in skin elasticity and wrinkle reduction.
- 02 A 0.1% concentration of the standardized extract serum demonstrated significantly superior skin lightening efficacy compared to placebo (P<0.001). It also achieved highly significant improvements in skin elasticity (P<0.05) and wrinkle reduction (P<0.005), outperforming the 0.05% concentration across all examined parameters.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Litchi juice concentrate, particularly when prepared in a water and propylene glycol mixture, exhibits good pH stability, maintaining acceptable values between 4.33 and 5.27 over 60 days in pasteurized formulations. Polysaccharides from the juice are soluble in hot water but not ethanol, while its organic acids (citric, tartaric, ascorbic) are water-soluble. Storage at -20°C for 6 months demonstrates composition stability, with minor increases in tannin content and non-enzymatic browning being the only observed changes.
Safety
Safety Profile
LITCHI CHINENSIS FRUIT JUICE has not undergone review by the Cosmetic Ingredient Review (CIR) Expert Panel. While whole litchi fruit is generally recognized as safe (GRAS) for food consumption globally, there are reported cases of adverse reactions (e.g., pruritus, urticaria, swelling, diarrhea) in some individuals consuming fresh litchi or its products, potentially due to soluble proteins. However, for topical cosmetic application, it is generally considered to have a low risk of irritation and comedogenicity.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Litchi Chinensis Fruit Juice is a valuable ingredient, clinically proven to deliver significant skin lightening, elasticity improvement, and wrinkle reduction through its potent antioxidant and anti-inflammatory properties.
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