Divinyldimethicone/Dimethicone Copolymer

What is Divinyldimethicone/Dimethicone Copolymer?

Divinyldimethicone/Dimethicone Copolymer is a synthetic organosilicon compound, a copolymer of divinyldimethicone and dimethicone, belonging to the silicone polymer family. Produced through polymerization of siloxane units with vinyl functional groups, it is widely incorporated into hair styling products, conditioners, shampoos, sunscreens, and makeup formulations. In cosmetics, it works by depositing a thin, elastic film on hair shafts or skin surfaces. This film minimizes friction, locks in hydration, and boosts resilience against humidity or water exposure. Its branched structure ensures compatibility with diverse ingredients, yielding smooth textures and enhanced adhesion without heaviness. Commonly found in leave-on products, it supports durable hold and visual appeal while maintaining breathability.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Film former
Creates a continuous film on skin or hair to improve wear, water resistance, transfer resistance, shine, or hold in sunscreens, makeup, and styling products.
Hair conditioning
Improves softness, shine, and manageability by reducing friction and static; commonly achieved with cationic agents, silicones, oils, or conditioning polymers.

Benefits

Creates a durable film improving water resistance and wear in sunscreens and makeup.

Enhances hair softness, shine, and combability by lowering friction and static.

Provides lightweight conditioning for better product texture and spreadability.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
People with unruly or dry hair needing improved manageability.
Those with rare silicone sensitivities or allergies.
Users seeking long-lasting, transfer-resistant makeup finishes.
People preferring fully natural, silicone-free routines.
Individuals wanting shine and protection in styling or sun care products.
Users experiencing buildup from frequent silicone use in hair products.

Safety Notes

  • Considered low hazard with EWG score of 1, indicating minimal risk.
  • Generally recognized as safe in cosmetics per expert reviews of silicone copolymers.

Frequently Asked Questions about Divinyldimethicone/Dimethicone Copolymer

What does Divinyldimethicone/Dimethicone Copolymer do in products?

It forms protective films on hair or skin to boost shine, reduce friction, and enhance water resistance in styling and makeup.

Is it safe for daily use?

Yes, it carries a low EWG hazard score of 1 and is safe as used in cosmetics.

Does it work on all hair types?

It suits most hair types by improving softness and manageability without greasiness.