Science
Mechanism of Action
Hydrolyzed Tamarindus Indica Seed Extract functions as a potent humectant, drawing and binding water to the skin's surface for deep hydration and improved suppleness. Its unique xyloglucan polysaccharide component creates a protective, breathable film that minimizes transepidermal water loss and reinforces the skin's natural barrier, leading to smoother skin and reduced appearance of fine lines. Rich in antioxidants like proanthocyanidins, it boosts collagen synthesis, inhibits its degradation, and stabilizes elastin, contributing to a more youthful complexion. Furthermore, it demonstrates the ability to inhibit melanogenesis by suppressing tyrosinase activity, offering skin brightening effects, and possesses both anti-inflammatory and UV-protective attributes.
Research
Clinical Evidence
High confidence4%
Key findings
- 01 A 12-week human clinical study on healthy male volunteers demonstrated statistically significant improvements in skin elasticity and moisture content, alongside reductions in skin scaliness, wrinkles, and roughness following topical application of a cosmetic emulsion containing this extract.
- 02 In vitro studies showed that tamarind jellose, a key component of the extract, reduced cellular melanin content in B16 melanoma cells by up to 62.1% (observed at 1% w/v concentration, resulting in 37.9% remaining melanin).
- 03 In vitro, low concentrations of tamarind jellose significantly enhanced the proliferation of skin fibroblast cells, indicating potential for skin regeneration and repair.
Transparency
Dusting Analysis
This ingredient is not commonly dusted. A human clinical study demonstrates significant efficacy at a 4% topical concentration, providing robust support for its inclusion at effective levels in formulations.
The Formula
Formulation
Stability
Exhibits exceptional stability across a broad pH range of 3-11, showing minimal impact from pH fluctuations or salts. It is highly heat resistant, retaining 65% viscosity even after 120°C sterilization, and maintains excellent stability over time. The ingredient can also facilitate the formation of elastic, waterless gels.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel deemed a broader category of plant-derived proteins and peptides, which includes this extract, safe for cosmetic use, citing no adverse animal effects and no mutagenic or genotoxic potential. In vitro tests confirmed no cytotoxic effects on skin fibroblast cells at concentrations up to 10 mg/mL.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Hydrolyzed Tamarindus Indica Seed Extract is a valuable, multi-functional ingredient providing superior hydration, anti-aging, and skin-brightening benefits supported by clinical data and an excellent safety profile.
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References
Sources