Science
Mechanism of Action
While specific biochemical mechanisms of action for emerald as an active skincare ingredient are not scientifically established, proponents suggest it may provide antioxidant benefits and nourishment through trace elements. Mechanically, finely crushed emeralds are theorized to offer a physical exfoliating and skin-smoothing effect.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
As a mineral, emerald is typically incorporated into skincare in a crushed or powdered form, potentially leading to its inclusion for perceived rather than scientifically validated functional benefits. Specific dusting thresholds, where its concentration primarily serves a marketing purpose, are not defined in the available research.
The Formula
Formulation
Stability
Specific data regarding the optimal pH range and stability of emerald in cosmetic formulations is unavailable. As a mineral, emerald is generally insoluble in common cosmetic solvents like water or oil. General skincare products are typically formulated within a pH range of 4.5-6.0.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) has not published a specific safety assessment for emerald (aluminum beryllium silicate). While the EWG Skin Deep® database classifies it with 'LOW' hazard for cancer, allergies & immunotoxicity, and developmental/reproductive toxicity, it concurrently notes a 'HIGH' concern for use restrictions, stating it is 'Banned or found unsafe for use in cosmetics' under the EU Cosmetics Directive. No specific FDA status for emerald as a cosmetic ingredient was found.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Due to a lack of documented scientific efficacy, an unknown mechanism of action, and its classification as 'Banned or found unsafe for use in cosmetics' by the EU Cosmetics Directive, emerald is not recommended for inclusion in precision skincare formulations.
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