Tyrosine

INCI: TYROSINE

Tyrosine (CAS 60-18-4 (L-Tyrosine); 556-03-6 (DL-Tyrosine)) is a cosmetic cosmetic ingredient functioning as Antistatic, fragrance ; also used for skin conditioning and tanning enhancement. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.

View industrial chemical safety profile for CAS 60-18-4 (L-Tyrosine); 556-03-6 (DL-Tyrosine) →

Auto-generated CPSR Part A draft with source citations
CAS Number
60-18-4 (L-Tyrosine); 556-03-6 (DL-Tyrosine)
View industrial chemical safety profile →
Function
Antistatic, fragrance ; also used for skin conditioning and tanning enhancement (melanin precursor)
Safety Rating
EXCELLENT

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Generally Recognized as Safe (GRAS) as an amino acid; permissible in cosmetics

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Tyrosine.

Calculate MoS for your specific formulation with the MoS Calculator.

Additional Ingredient Properties

4 property records from structured ingredient metadata.

acne
{"cas_number": "60-18-4", "anti_acne_mechanism": "anti_inflammatory", "comedogenicity_rating_0_to_5": "0", "acne_type_efficacy": "inflammatory", "sebum_reduction_pct_clinical": "0-5", "prescription_required_usa": "No", "otc_drug_monograph_category": "No", "max_otc_concentration_pct": "No limit", "japan_quasi_drug_anti_acne": "No", "korea_functional_cosmetic_acne": "No", "eu_cosmetic_restriction_ac…
anti_aging
{"anti_aging_claim": "brightening precursor", "mechanism_of_action": "Building block for proteins, NMF component", "target_skin_layer": "epidermis", "collagen_stimulation": "Mild", "elastin_protection": "Mild", "wrinkle_reduction_pct": "4-8", "clinical_study_duration_weeks": "8", "sample_size": "25", "double_blind": "No", "placebo_controlled": "Yes", "published_journal": "Int J Cosmet Sci", "impro…
self_tanning
{"cas_number": "60-18-4", "ingredient_class": "tan_accelerator", "tanning_mechanism": "melanin_stimulation", "color_development_onset_hours": "48.0", "full_color_development_hours": "168", "color_duration_days": "14", "color_depth": "adjustable", "undertone": "natural", "color_uniformity": "excellent", "fade_pattern": "even", "DHA_concentration_if_applicable_pct": "0", "erythrulose_concentration_p…
sensory
{"silky": "powdery", "smooth, glides easily": "smooth, melanin precursor", "dry-touch, non-greasy": "protected, even", "instant": "moderate", "low": "low", "w/o": "o/w", "very-high": "moderate", "no": "no", "yes": "no", "1.40": "1.46", "transparent": "opaque", "colorless": "white", "excellent": "fair", "light": "light", "synthetic": "biotechnology"}

Expert Verdict

Expert safety assessment and concern-level summary for Tyrosine.

Regulatory Flags

fragrance-component

NOAEL Studies Summary

View details ->

Public NOAEL study rows linked to Tyrosine by CAS number or substance name.

Studies
6
Lowest NOAEL
200 mg/kg bw/day
Highest NOAEL
600 mg/kg bw/day
ECHA_REACH_reach_study_results_dossiers_23-05-2023.zip

Frequently Asked Questions

Is Tyrosine safe in cosmetics?

Tyrosine has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: permitted.

Is Tyrosine allowed in the EU?

Tyrosine EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Tyrosine do in cosmetics?

Tyrosine functions as: Antistatic, fragrance ; also used for skin conditioning and tanning enhancement (melanin precursor). It is classified as a cosmetic ingredient in our database. CAS number: 60-18-4 (L-Tyrosine); 556-03-6 (DL-Tyrosine).

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