Amodimethicone

About Amodimethicone

Amodimethicone is a silicone with amine groups attached along its chain. At the slightly acidic pH of most conditioners those groups carry a positive charge, which draws the silicone to the negatively charged spots on hair — and damaged areas such as weathered ends or chemically processed lengths carry the most negative charge.

The result is targeted conditioning: smoother, softer ends, easier detangling and less friction where hair needs it most, without coating healthy roots as heavily as dimethicone can. Because it is attracted to hair rather than simply sitting on top, amodimethicone tends to hold on through rinsing, which is why rinse-out conditioners use it.

In Curly Girl terms it is a non-water-soluble silicone, so the original method avoids it. Some people argue that it is 'self-limiting' — once the charged sites are covered, extra silicone has nowhere to bind — and that mild sulfate-free shampoos remove it. The evidence for those claims is limited, so we mark it as avoid and let you decide.

Who tends to like it: people with relaxed, texlaxed, bleached or heat-styled hair, and anyone with very tangly ends. Who may skip it: strict CG followers, people with fine low porosity hair who notice heaviness, and those who only co-wash. If you use it, an occasional wash with a regular shampoo keeps layers from building up.