Moderate Cosmetic Ingredient

Gamma-Undecenolactone

INCI: GAMMA-UNDECENOLACTONE

CAS Number
Not specifically assigned in major databases (note: the related saturated compound gamma-undecalactone has CAS 104-67-6 - these are distinct molecules)
Function
Deodorant (reduces/masks unpleasant body odors)
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status prohibited
🇺🇸 US Status permitted
US Notes Allowed - not listed as prohibited or restricted under 21 CFR; general cosmetic ingredient safety responsibility rests with the manufacturer

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Limited standalone toxicological data; structurally related gamma-lactones are generally considered low-risk at typical use levels. Unsaturated lactone variant; should not be confused with gamma-undecalactone (CAS 104-67-6), which is a peach-scented fragrance compound

⚠️
Concern Level: High

Frequently Asked Questions

Is Gamma-Undecenolactone safe in cosmetics?

Limited standalone toxicological data; structurally related gamma-lactones are generally considered low-risk at typical use levels. Unsaturated lactone variant; should not be confused with gamma-undecalactone (CAS 104-67-6), which is a peach-scented fragrance compound The EU classifies Gamma-Undecenolactone as "prohibited". Safety rating: MODERATE.

Is Gamma-Undecenolactone allowed in the EU?

Gamma-Undecenolactone EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Gamma-Undecenolactone do in cosmetics?

Gamma-Undecenolactone functions as: Deodorant (reduces/masks unpleasant body odors). It is classified as a cosmetic ingredient in our database. CAS number: Not specifically assigned in major databases (note: the related saturated compound gamma-undecalactone has CAS 104-67-6 - these are distinct molecules).

What is the Margin of Safety for Gamma-Undecenolactone?

not established 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 Gamma-Undecenolactone compliance across multiple jurisdictions:

🔬
Ingredient Decoder
Paste a full ingredient list for instant analysis
 🌸
82 Allergen Checker
Check for EU declarable fragrance allergens
 🧪
Substance Compliance
Check compliance across 55 jurisdictions
 🧮
MoS Calculator
Calculate Margin of Safety using SCCS methodology
 ⚗️
Heavy Metal Limits
Compare limits across jurisdictions

Related Ingredients

Acrylamides Copolymer
Moderate
Lithium Sulfide
Poor
Potassium Sulfide
Poor
Oxidized Polypropylene
Good
Carbon Fiber
Moderate
Browse all 30,000+ ingredients →
📱

Is Gamma-Undecenolactone 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 Gamma-Undecenolactone in your formulation.

Ingredient Decoder MoS Calculator