Is Cytosine safe in cosmetics?
Cytosine has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
Cytosine
INCI: CYTOSINE
Cytosine (CAS 71‑30‑7) is a cosmetic cosmetic ingredient functioning as Nucleobase; rarely used directly in cosmetics but may appear in biotech. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 71‑30‑7 →
Auto-generated CPSR Part A draft with source citations
Function
Nucleobase; rarely used directly in cosmetics but may appear in biotech actives, DNA/RNA-based or cell communication concepts
Safety Rating
MODERATE
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not listed as prohibited; any cosmetic use must be supported by robust safety data; cytosine is primarily a lab chemical, not an established cosmetic ingredient
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Cytosine.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Cytosine.
Frequently Asked Questions
Is Cytosine allowed in the EU?
Cytosine EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Cytosine do in cosmetics?
Cytosine functions as: Nucleobase; rarely used directly in cosmetics but may appear in biotech actives, DNA/RNA-based or cell communication concepts. It is classified as a cosmetic ingredient in our database. CAS number: 71‑30‑7.
Compliance Tools
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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