Science
Mechanism of Action
This compound acts as a potent reducing agent by altering the chemical structure of other substances through the addition of hydrogen or removal of oxygen. Specifically, when subjected to acidic conditions, it decomposes to release a reducing sulfoxylate ion (SO2^2-^) and formaldehyde. In certain pharmaceutical contexts, this reducing capacity has been leveraged for its antioxidant properties.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Freely soluble in water, this ingredient exhibits instability in acidic solutions (below pH 7.0), leading to the release of formaldehyde and sulfite. Its stability diminishes with exposure to moisture, heat, or prolonged air/oxygen. While an aqueous solution is nearly neutral, adding formaldehyde can stabilize its solutions by shifting the equilibrium.
Conflicts
- strong oxidizing agents
- acids
- heavy metal salts
- peroxides
- halogenated oxidants
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) has not published a safety assessment for Sodium Oxymethylene Sulfoxylate. Significant safety concerns are attributed to its decomposition, which releases formaldehyde—a known human carcinogen, skin, and eye irritant. GHS classifications indicate it is suspected of causing genetic defects (H341) and damaging fertility or the unborn child (H361). Frequent or prolonged exposure may induce hypersensitivity and eczematoid contact dermatitis.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Due to its decomposition into formaldehyde, a known carcinogen and potent irritant, alongside the absence of proven skincare benefits, Sodium Oxymethylene Sulfoxylate is strongly advised against for all precision skincare formulations.
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