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ORYZA SATIVA SEED EXTRACT.

Valuable / ANTIOXIDANT, SKIN CONDITIONING

Oryza Sativa Seed Extract is a versatile botanical ingredient derived from rice, offering a comprehensive range of benefits for skin health. It provides significant antioxidant protection, enhances skin hydration, contributes to a brighter complexion, and offers soothing properties suitable for all skin types.

Summary

Antioxidant Skin-Conditioning Agent Humectant Soothing Skin Brightening Exfoliant

Science

Mechanism of Action

Oryza Sativa Seed Extract functions through multiple pathways to improve skin. Its antioxidant capabilities, attributed to compounds such as ferulic acid, gamma-oryzanol, vitamin E, and phenolic acids, combat free radicals and mitigate the appearance of fine lines. Hydration benefits are delivered by amino acids and polysaccharides, which form a protective film to retain moisture. The extract brightens skin and addresses hyperpigmentation by inhibiting tyrosinase activity and melanin production, driven by components like gamma-oryzanol, rice peptides, and phytic acid. Furthermore, natural anti-inflammatory compounds and B vitamins provide a soothing effect, while phytic acid also contributes mild exfoliating properties and supports collagen integrity, strengthening the skin’s moisture barrier.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Oral supplementation with Rice Ceramides (from Oryza sativa L.) significantly improved skin barrier functions, including a reduction in transepidermal water loss (TEWL) and increased stratum corneum hydration. Improvements were observed within four weeks, with sebum production showing notable change after three months. Additionally, depigmentation effects were noted in an open-label prospective study.
  2. 02 In vitro studies with rice callus extract (from Oryza sativa) at concentrations up to 4096 µg/mL demonstrated anti-proliferative effects, suggesting potential for skin cancer prevention. It also exhibited skin whitening activity by effectively inhibiting tyrosinase activity and melanin biosynthesis in B16F10 melanoma cells.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 4.5 – 7
0 7 14

Stability

Due to its rich nutrient profile, formulations containing Oryza Sativa Seed Extract necessitate broad-spectrum preservatives to maintain microbial integrity. For optimal clarity in finished products, incorporating chelating agents and maintaining low ionic strength is recommended, as the extract may cause haziness in electrolyte-rich systems.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that Oryza Sativa-derived ingredients, including extracts, are safe for cosmetic use when formulated to be non-sensitizing and adequately preserved. Manufacturers should ensure contaminants like pesticides and heavy metals do not exceed reported levels. While generally considered non-allergenic in cosmetic applications, rare cases of allergy to raw rice have been documented. Rice bran extract, a related ingredient, is recognized as Generally Recognized As Safe (GRAS) by the FDA for specific food uses.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

Oryza Sativa Seed Extract is a valuable, well-tolerated ingredient offering broad benefits from antioxidant protection and deep hydration to skin brightening and soothing for all skin types.

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