C26-28 Alkyl Dimethicone

TL;DR. This ingredient is primarily a film-former and conditioning agent that adds slip, gloss, water resistance, and a smooth after-feel in skin, hair, and color cosmetics. It can also help structure anhydrous formulas and improve spreadability.

What does C26-28 Alkyl Dimethicone do in a cosmetic formula?

This ingredient is primarily a film-former and conditioning agent that adds slip, gloss, water resistance, and a smooth after-feel in skin, hair, and color cosmetics. It can also help structure anhydrous formulas and improve spreadability.

Is C26-28 Alkyl Dimethicone clean?

From a clean-beauty perspective, it has high standards friction because many frameworks exclude this class of synthetic, persistent polymers. It is generally low-irritation on skin, so the concern is mainly standards alignment and environmental profile rather than acute tolerance.

Is C26-28 Alkyl Dimethicone sustainable?

This material is typically made from nonrenewable mineral and petrochemical-derived inputs. It is not readily biodegradable and can persist after rinse-off use, which weakens its sustainability profile.

Is C26-28 Alkyl Dimethicone COSMOS-approved?

It is not permitted under COSMOS natural or organic standards. Its Green Chemistry fit is weak because it relies on nonrenewable feedstocks, specialized synthetic processing, and limited biodegradability.

How does C26-28 Alkyl Dimethicone work chemically?

The molecule is a high-molecular-weight, hydrophobic polymer with a methyl-substituted inorganic backbone and long C26-C28 it side chains, giving it a waxy, water-repellent feel. It is stable across typical cosmetic pH ranges, oxidation-resistant, and most often used in low single-digit percentages to improve payoff, slip, and film durability.

Last updated 2026-05-15