Question 1

What does POLYGLYCER- YL-4 CAPRATE do in a cosmetic formula?

Accepted Answer

This ingredient is a mild nonionic surfactant and solubilizer, often used to disperse oils, fragrance components, and lipophilic actives into water-based formulas. It can also support light emulsification and skin feel in cleansers, toners, and leave-on products.

Question 2

Is POLYGLYCER- YL-4 CAPRATE clean?

Accepted Answer

From a clean beauty perspective, it is generally well-tolerated and has low sensitization concern compared with many harsher surfactants. It is non-ethoxylated, so it does not carry the same 1,4-dioxane residue concern associated with ethoxylated materials.

Question 3

Is POLYGLYCER- YL-4 CAPRATE sustainable?

Accepted Answer

This material is commonly made from glycerin and medium-chain fatty acids that may come from coconut, palm kernel, or other vegetable oils. It is expected to be readily biodegradable, with the main sourcing question being traceability for tropical oil feedstocks.

Question 4

Is POLYGLYCER- YL-4 CAPRATE COSMOS-approved?

Accepted Answer

It can be permitted under COSMOS-natural and COSMOS-organic when made from approved renewable feedstocks using allowed esterification chemistry. Its fit with Green Chemistry is strong because it is typically bio-based, non-ethoxylated, biodegradable, and made without persistent silicone or fluorinated chemistry.

Question 5

How does POLYGLYCER- YL-4 CAPRATE work chemically?

Accepted Answer

The molecule is a nonionic ester built from a small glycerol oligomer and a C10 fatty acid chain, giving it both water-compatible and oil-compatible character. It is typically used around 0.5 to 5% depending on whether the goal is solubilization, cleansing support, or emulsification, and it is generally stable across common cosmetic pH ranges but can slowly hydrolyze under strongly acidic or alkaline conditions.