Polyacrylamide

If you’ve ever wondered what polyacrylamide is and why it keeps popping up in silky gels and lightweight creams, the short version is that it’s a big synthetic polymer that helps formulas feel smooth, elegant, and a bit less tacky. Its name is a mouthful too, by the way — it’s usually pronounced something like “pol-ee-ak-ruh-MYDE.” In cosmetics, it’s most often used as part of a pre-made blend rather than on its own, where it helps thicken water-based formulas and give them that cushy, gel-like texture that spreads nicely on skin.

How is polyacrylamide made? It’s produced by polymerizing acrylamide, meaning lots of small building blocks are linked into a long chain. In skincare, you won’t usually be dealing with a jar of polyacrylamide powder and a DIY recipe for how to make polyacrylamide from scratch — this is an industrial ingredient, not a kitchen project. The raw material can be turned into different forms depending on the intended polyacrylamide uses: a thickening agent, a stabilizer, a film former, or part of a polyacrylamide hydrogel. In formulas, it often appears alongside ingredients like C13-14 isoparaffin and laureth-7, which together create a ready-to-use gel network that feels surprisingly light on the skin.

That gel network is also why people bump into the term polyacrylamide gel in chemistry class. In lab land, polyacrylamide gel electrophoresis is a very different beast: scientists use it to separate proteins and tiny DNA fragments based on size. If you’ve ever seen a polyacrylamide gel electrophoresis diagram, it probably looked nothing like a face cream, and that’s because the ingredient can live two lives — one in science labs, one in cosmetics. Compared with an agarose gel, polyacrylamide gels are usually more finely tuned for smaller molecules. In your moisturizer, though, the point is simpler: make the formula feel prettier, not to run an experiment.

As for is polyacrylamide safe? In cosmetics, it’s generally considered safe when used as intended. The polymer itself is large and not absorbed like a small active ingredient, and the main safety discussion is usually about making sure leftover acrylamide monomer is kept extremely low during manufacturing. So if you’re asking how to use polyacrylamide, the answer is easy: you don’t use it by itself, you let the formula do the work. It’s one of those behind-the-scenes helpers that makes products feel more refined, less drippy, and a little more luxurious without stealing the spotlight.

It's a film-forming and thickening polymer (a large molecule composed of many repeated subunits) that comes to the formula usually as part of an emulsifier, thickener trio (with C13-14 Isoparaffin and Laureth-7, trade named Sepigel 305). This trio is an easy-to-use liquid that helps to create nice, non-tacky gel formulas.