Science
Mechanism of Action
This ingredient functions primarily as an astringent, helping to contract and tighten skin tissues, which can visibly reduce pore size and provide a smoother skin texture. As a glycerophosphate, its constituent glycerol and phosphate components are hypothesized to enhance skin hydration, support cutaneous elasticity, and aid in epidermal barrier repair, drawing parallels to the known actions of glycerol and beta-glycerophosphate. Furthermore, its iron content contributes to mineral supplementation, offering potential dermatological benefits related to this essential element. It is described as mild and non-irritating, making it suitable for sensitive skin types.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
While inhalation of the raw material's dust may irritate the nose and throat, and prolonged contact with dust can irritate eyes and skin, this refers to occupational handling of the substance, not its performance or 'dusting' issues within a formulated cosmetic product.
The Formula
Formulation
Stability
Ferric Glycerophosphate demonstrates optimal stability in acidic environments, specifically at pH values below 4.0. A typical 1% solution generally exhibits a pH in the range of 4-5. Elevated pH levels, approaching neutral or alkaline conditions, significantly increase the risk of precipitation of ferric hydroxide and ferric phosphate. It maintains stability under recommended storage conditions.
Conflicts
- strong oxidizing agents
- heat
Safety
Safety Profile
Ferric Glycerophosphate is recognized by the FDA through its Global Substance Registration System (GSRS) with a Unique Ingredient Identifier (UNII), and has been deemed safe for general or limited use in food. In cosmetics, it does not possess individual approval but can be incorporated as a component within products conforming to a broader group standard. It is generally considered non-poisonous at recommended dosages, and aggregated GHS data classifies it as 'Not Classified' for hazard criteria. It is important to note that the toxicology properties of this specific product have not been extensively studied for cosmetic application. There is no identification of this ingredient as a probable or confirmed human carcinogen at concentrations equal to or above 0.1% by major regulatory bodies (IARC, ACGIH, OSHA, NTP).
Your Skin
Skin Compatibility
Our Assessment
Verdict
Ferric Glycerophosphate is a valuable ingredient, offering astringent properties, potential hydration, and mineral benefits, with a favorable low irritancy profile, although specific clinical efficacy studies in cosmetic formulations are currently lacking.
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