Science
Mechanism of Action
Nephelium Lappaceum extracts exert their effects through several key biological pathways. Leaf components stimulate the synthesis of collagen and elastic fibers, directly contributing to enhanced skin elasticity and a visible reduction in wrinkle depth. Fruit peel extracts fortify the skin's natural barrier by boosting water retention and promoting the synthesis of essential lipids like phospholipids and ceramides, resulting in superior hydration and a refined skin texture. The extract also acts as a potent antioxidant, neutralizing free radicals with compounds such as gallic acid, and exhibits anti-melanogenesis properties through tyrosinase inhibition, which brightens and evens skin tone, alongside noted anti-inflammatory, antimicrobial, and antiphotoaging activities.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 In vivo studies utilizing leaf extract (e.g., Nephoria™) demonstrated enhanced skin elasticity and a visible reduction in wrinkle appearance.
- 02 In volunteer trials with peel extract (e.g., Nephydrat™), significant increases in skin hydration were observed, leading to a more uniform and fresh complexion.
- 03 An in vitro study of ripe fruit peel extract showed potent inhibition of mushroom tyrosinase activity at an IC50 of 0.04 ± 0.02 mg/mL, an effect comparable to kojic acid.
- 04 A Korean Patent application highlights its ability to achieve a whitening effect by suppressing melanin production and inhibiting tyrosinase, with effective concentrations preferably between 0.01% and 5%.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
A gel nanoemulsion containing rambutan fruit peel extracts has shown robust stability, maintaining homogeneity, organoleptic properties, pH, and viscosity when subjected to temperatures of 40±2°C. The optimal pH range for the combined extract is not explicitly detailed.
Safety
Safety Profile
Described as a topically acceptable ingredient, it exhibits low cytotoxicity, with in vitro studies showing no adverse effects at concentrations up to 0.1 mg/mL on human skin fibroblasts and 0.01 mg/mL on B16F10 cells. It is considered non-toxic, non-irritating to skin and mucous membranes, and has not been shown to induce allergic responses, qualifying it as 'extremely well tolerated' for natural cosmetic formulations. Cytotoxicity analyses for peel extracts also indicated low toxicity at higher concentrations across various cell lines (IC50 values ranging from 94.11 to 205.92 µg/mL). No specific CIR, SCCS, or FDA status is available for the combined extract.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Nephelium Lappaceum Branch/Fruit/Leaf Extract is a valuable multi-functional ingredient that significantly boosts skin hydration and elasticity, evens skin tone, and offers broad protective benefits for diverse skin types.
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