Is Thiamine safe in cosmetics?
Thiamine has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: permitted.
EXCELLENT
Cosmetic Ingredient
Thiamine
INCI: THIAMINE
Thiamine (CAS None) is a cosmetic cosmetic ingredient functioning as Vitamin B1 supplement and skin conditioning agent. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
Function
Vitamin B1 supplement and skin conditioning agent
Editorial assessment
EXCELLENT
Preliminary editorial note — not a computed safety verdict.
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
GRAS status under 21 CFR 184.1875 (direct food additive) and 21 CFR 582.5875 (feed additive). No FDA restrictions for cosmetic use. Not reviewed by Cosmetic Ingredient Review expert panel.
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Thiamine.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for Thiamine — not a computed safety verdict. See the sourced toxicological data above.
Regulatory Flags
eu-unrestricted
gras-fda
no-sccs-opinion
no-cir-review
fda_food_additive
Frequently Asked Questions
Is Thiamine allowed in the EU?
Thiamine EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Thiamine do in cosmetics?
Thiamine functions as: Vitamin B1 supplement and skin conditioning agent. It is classified as a cosmetic ingredient in our database. CAS number: None.
Compliance Tools
Check Thiamine compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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THIMEROSAL
MODERATE
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Preservative
THYMUS LINEARIS LEAF/(ANGELICA GLAUCA/BERGENIA CILIATA) ROOT/PRINSEPIA UTILIS SEED EXTRACT
GOOD
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Skin Conditioning
THYMUS SERPYLLUM EXTRACT
GOOD
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Skin Conditioning
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