Moderate evidence

Dimethicone for Rosacea

A silicone that sits on your skin as an invisible, non-greasy shield. Reduces water loss, protects against irritants (think soap, friction, incontinence), and is FDA-recognised as a skin protectant from 1-30%. The reason your favourite primer feels silky and your barrier cream actually works under makeup.

Why it works for Rosacea

Forms a light, breathable film that slows water loss and protects against irritants, without clogging pores or trapping heat. That matters in rosacea, where heavy sealing can bring on flushing. It is an officially recognized skin protectant and common in rosacea-friendly moisturizers.

How Dimethicone works

Long-chain silicone polymer that forms a breathable hydrophobic film on the stratum corneum, lowering transepidermal water loss and shielding skin from surfactant-driven irritation without occluding the follicle.

Evidence

4 citations from our ingredient database. Full citation list on the Dimethicone ingredient page.

journal2011

Beeckman D, Verhaeghe S, Defloor T, et al. A 3-in-1 perineal care washcloth impregnated with dimethicone 3% versus water and pH neutral soap to prevent and treat incontinence-associated dermatitis: a randomized, controlled clinical trial. J Wound Ostomy Continence Nurs. 2011;38(6):627-634.

systematic review2005

Saary J, Qureshi R, Palda V, et al. A systematic review of contact dermatitis treatment and prevention. J Am Acad Dermatol. 2005;53(5):845-855. (Barrier creams containing dimethicone prevent irritant contact dermatitis.)

regulatory2003

FDA OTC Final Monograph, 21 CFR Part 347 — Skin Protectant Drug Products for Over-the-Counter Human Use; dimethicone listed at section 347.10 as a Category I active ingredient at 1-30%.

journal2001

Zhai H, Leow YH, Maibach HI. A bioengineering study on the efficacy of a skin protectant lotion in preventing SLS-induced dermatitis. Skin Res Technol. 1998;4(3):145-148. (Indexed) Mu YH, Kapes M, Maibach HI. (2001) Bioengineering study on dimethicone-based skin protectant lotion vs. SLS irritation.

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