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Moumoujus

SYNTHETIC SAPPHIRE.

Valuable CAS - / BULKING, OPACIFYING

Synthetic Sapphire, a crystalline form of aluminum oxide (Al₂O₃), is a precisely engineered ingredient for skincare. In powdered form, it primarily functions as a mechanical exfoliant, facilitating the removal of surface dead skin cells. It also serves as a bulking and opacifying agent within cosmetic formulations.

Summary

Mechanical Exfoliant Bulking Agent Opacifying Agent

Science

Mechanism of Action

When incorporated into formulations, powdered Synthetic Sapphire acts as a gentle yet effective mechanical exfoliant, physically buffing away superficial dead skin cells to reveal a smoother complexion. Its inert crystalline structure also contributes to desired textural and optical properties by providing bulk to products and reducing transparency.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 A one-week single-blind user trial of a cosmetic formulation containing powdered sapphire (particle size 50-500 micrometers, with an estimated optimal range of 100-250 micrometers), adjusted to a pH of 5.6, resulted in subjects reporting softer skin, a more rejuvenated/younger-looking appearance, and a significant reduction or softening in the appearance of fine lines and wrinkles.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Unknown
Optimal pH N/A
0 7 14

Stability

Synthetic Sapphire demonstrates exceptional chemical inertness, resisting degradation from most acids and bases, which ensures high stability across a broad pH spectrum. Being a crystalline aluminum oxide, it is fundamentally insoluble in common cosmetic solvents, integrating into formulations as a solid particulate.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Low

Chemically identical to natural sapphire (Al₂O₃), Synthetic Sapphire is characterized by its high chemical inertness and low reactivity, ensuring a stable ingredient profile. Reputable safety assessments, including EWG Skin Deep, classify it as 'LOW' risk across various concerns, while SkinSAFE deems it 'Teen SAFE', 'Baby SAFE', 'Eyelid SAFE', 'Lip SAFE', and 'Irritant Free', reflecting a favorable safety status for diverse applications. It is not currently reviewed by CIR, nor is it listed as a prohibited or restricted ingredient by the FDA for cosmetic use.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Synthetic Sapphire is a valuable, chemically inert ingredient providing effective mechanical exfoliation and formulation benefits with a strong safety profile across all skin types.

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