Nylon-11
AKA “11-AMINOUNDECANOIC ACID, Undecanoic acid, 11-Aminoundecylic acid, NCI-C50613, NSC-240503, NSC-662428, RefChem:907971”
Synthetic
Ingredient Facts
Nylon-11
AKA: 11-AMINOUNDECANOIC ACID, Undecanoic acid, 11-Aminoundecylic acid, NCI-C50613, NSC-240503, NSC-662428, RefChem:907971
Synthetic · Emollient · EWG: 4
Synthetic
Emollient
Skin Conditioner
Plant Oil
Synthetic
Clean
A lightweight powder that gives the product its smooth texture and helps it glide onto skin evenly without feeling heavy or runny.
Solubility less than 0.1 mg/mL at 70 °F (NTP, 1992)
Formula
C11H23NO2
Mol. Weight
201.31
CAS #
25035-04-5
Form
Powder
State
11-aminoundecanoic acid appears as white crystalline solid or powder. (NTP, 1992)
See origin →
Functions
Bulking
Viscosity Controlling
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Smoothing
Adds Body & Volume
Controls Viscosity
Adds volume
Controls product thickness
Traditional Use
Synthetic polyamide created in the 20th century for various industrial and cosmetic applications. Used in cosmetics as a polymer for texture and spreadability improvement.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR