Science
Mechanism of Action
This copolymer operates by establishing a continuous, protective film across the skin's surface or hair strands. This barrier not only significantly reduces transepidermal water loss, thereby enhancing skin hydration and preventing dehydration, but also reinforces the skin's natural defenses against environmental aggressors. Functioning as an emollient, it leaves the skin feeling exceptionally soft and smooth. Additionally, it optimizes product spreadability, ensuring even application, and refines the sensory experience by diminishing tackiness and greasiness, culminating in a radiant yet matte, powdered after-feel.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
An emulsion containing Divinyldimethicone/Dimethicone Copolymer demonstrates stability around a pH of 5. For optimal formulation stability, particularly for related silicone polymers, a functional pH range between 5.5 and 8.5 is generally recommended. When formulated in an emulsion, this ingredient is soluble in water, almond oil, dimethicone, glycerine, propylene glycol, and polysorbate-20, yet insoluble in cetyl dimethicone, ethanol, ethylhexylcarbonate, IPM, isododecane, and paraffin oil.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed the safety of dimethicone, methicone, and substituted-methicone polymers, a category encompassing Divinyldimethicone/Dimethicone Copolymer, deeming them safe for cosmetic use provided formulations are non-irritating. Due to their substantial molecular weight and typical low usage concentrations, these polymers are considered unlikely to undergo skin absorption. Regulatory bodies such as the FDA and the European Commission also acknowledge its safety, advising adherence to specified concentration limits for consumer protection. Related dimethicone crosspolymer ingredients may be safely used at concentrations up to 25% when functioning as a binder, film former, or fixative.
Your Skin
Skin Compatibility
Our Assessment
Verdict
DIVINYLDIMETHICONE/DIMETHICONE COPOLYMER is a highly valuable ingredient, offering broad skin compatibility and a low safety risk while enhancing hydration, skin feel, and product performance through its effective film-forming and emollient properties.
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