Our take
Is PPG-51/Smdi Copolymer a Good Ingredient?
It provides a flexible, breathable film that improves wear and helps slow moisture loss, giving reliable performance benefits that earn it a Good rating. It's typically well tolerated, though film-formers from polyurethane chemistry can occasionally bother very sensitive or occlusion-prone skin.
What it does
Skin Benefits
Helps reduce moisture loss and leaves skin or hair feeling smoother with improved staying power. Provides a lightweight, comfortable finish that resists smudging.
Where you'll find it
Uses in Skincare & Cosmetics
Common in long-wear foundations, primers, sunscreens, and hair styling creams to maintain a uniform finish and soft-touch feel.
Before you use it
Generally considered low risk at customary use levels with minimal systemic exposure. A small number of users may experience mild irritation or a heavy feel; discontinue if redness or clogging is noticed.
Products with PPG-51/Smdi Copolymer