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
Corrosive/caustic risk; strict pH control mandatory; depilatory use only under Annex III; ECHA CMR review
Regulatory Flags
Frequently Asked Questions
Is Strontium Hydroxide safe in cosmetics?
Corrosive/caustic risk; strict pH control mandatory; depilatory use only under Annex III; ECHA CMR review The EU classifies Strontium Hydroxide as "restricted". Safety rating: MODERATE.
Is Strontium Hydroxide allowed in the EU?
Strontium Hydroxide EU regulatory status: restricted. Maximum allowed concentration: 3.5%. This is based on EU Regulation 1223/2009 and its amendments.
What does Strontium Hydroxide do in cosmetics?
Strontium Hydroxide functions as: pH adjuster for depilatories. It is classified as a cosmetic ingredient in our database. CAS number: 18480-07-4.
What is the Margin of Safety for Strontium Hydroxide?
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 Strontium Hydroxide compliance across multiple jurisdictions:
Related Ingredients
Is Strontium Hydroxide 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 Strontium Hydroxide in your formulation.