Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL
INCI: SODIUM HYDROXYMETHANE SULFONATE (FORMALDEHYDE SODIUM BISULFITE ADDUCT)
Regulatory Status
For full compliance data across 55 jurisdictions, use the Substance Compliance tool.
Safety Data
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
🚨 FORMALDEHYDE RELEASER — releases ~25% formaldehyde by weight; IARC Class 1 carcinogen; EU Annex V restrictions apply; some markets moving toward total bans on formaldehyde releasers; must calculate total free FA in finished product; do NOT confuse with sodium hydroxymethane sulfinate (CAS 149-44-0), a related but distinct reducing agent
Frequently Asked Questions
Is Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL safe in cosmetics?
🚨 FORMALDEHYDE RELEASER — releases ~25% formaldehyde by weight; IARC Class 1 carcinogen; EU Annex V restrictions apply; some markets moving toward total bans on formaldehyde releasers; must calculate total free FA in finished product; do NOT confuse with sodium hydroxymethane sulfinate (CAS 149-44-0), a related but distinct reducing agent The EU classifies Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL as "prohibited". Safety rating: POOR.
Is Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL allowed in the EU?
Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL EU regulatory status: prohibited. Maximum allowed concentration: 0.2%. This is based on EU Regulation 1223/2009 and its amendments.
What does Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL do in cosmetics?
Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL functions as: Reducing Agent; releases formaldehyde. It is classified as a cosmetic ingredient in our database. CAS number: 870-72-4.
What is the Margin of Safety for Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL?
adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
Compliance Tools
Check Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL compliance across multiple jurisdictions:
Related Ingredients
Is Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free →Analyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL in your formulation.