Quick answer

Skin-conditioning emollient that helps preserve hydration; Enhances formulary texture for more elegant aesthetics; Also used in hair care products as a conditioning agent; Deemed a safe cosmetic ingredient by the CIR Expert Panel Key benefits: Hydration.

Dimethiconol

Updated

Poly[oxy(dimethylsilylane)], .alpha.-hydro-.omega.-hydroxy-

Purpose

Skin-conditioning emollient that helps preserve hydration while enhancing formulary texture for more elegant aesthetics.

Rating

GOOD

Category

Silicone, Emollient

INCI Purpose

ANTIFOAMING, MOISTURISING, SKIN CONDITIONING - EMOLLIENT

Benefits

Hydration — Attracts and locks in moisture to keep skin plump and dewy

Alternative Names

Hair Profile

Functions

Silicone

Helps With

Split ends Damaged

Goals

Shine

Suitable For

Porosity high

Role

High-viscosity silicone gum. Fills in deep cracks and severe cuticle damage; used in high-end split-end serums.

Length Build-up risk Avoid in Shampoo

At a Glance

Skin-conditioning emollient that helps preserve hydration

Enhances formulary texture for more elegant aesthetics

Also used in hair care products as a conditioning agent

Deemed a safe cosmetic ingredient by the CIR Expert Panel

Article

Dimethiconol is a silicone-based liquid polymer that works as a skin-conditioning agent (emollient) and antifoaming agent in cosmetic formulas. It multitasks by helping lubricate skin’s surface (without feeling greasy) to enhance hydration, while modifying the formula’s texture for a more pleasant consistency.

It can also be used in hair care products as a conditioning agent and is sometimes included in hair dyes to help the color resist wash out.

Dimethiconol is often combined with other compounds and molecules to form derivatives such as dimethiconol arginine, dimethiconol beeswax, dimethiconol cysteine, and dimethiconol meadowfoamate—each with their own distinctive properties and functions.

In 2017, the Cosmetic Ingredient Review (CIR) Expert Panel analyzed relevant data regarding dimethiconol and concluded it is a safe cosmetic ingredient. Their report looked at personal care products containing amounts between 0.004-36%.

See: Silicone

References

CosmeticsInfoorg, Accessed September 2021, ePublication International Journal of Toxicology, November 2017, pages 31S-50S International Journal of Cosmetic Science, April 2005, page 139