Sodium Caproyl Prolinate
molecular structure · PubChem
AKA: Sodium caproyl proline, Sodium (S)-1-decanoylpyrrolidine-2-carboxylate, L-Proline, Sodium salt (1:1), 1364318-34-2
Synthetic
Humectant
Cleanser
Skin Conditioner
Hair Care
Amino Acid
Plant Oil
Not Clean
L-Proline, 1-(1-oxodecyl)-, sodium salt (1:1),Sodium N-decanoyl-L-prolinate
Formula
C15H26NNaO3
Mol. Weight
291.36
CAS #
1364318-34-2
Form
Liquid
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Locks In Moisture
Traditional Use
A modern amino acid-based surfactant derived from caprylic acid and proline (an amino acid). Created to provide mild, skin-compatible cleansing for use in gentle skincare and haircare products.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR