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THE BOTTOM LINE
Silicones and polyquats are different materials but they both stay on hair and can build up over time. It is a good idea to wash your hair once a week with a shampoo that doesn’t contain either one in order to prevent buildup and keep your hair looking fresh, shiny and manageable.
WHY DOES SILICONE BUILD UP ON HAIR?
When it comes to buildup, the type of silicone (and how much is used) is more important than if it’s used in a leave-on styler or a rinse-off conditioner. There are many types of silicone with scientific names that can be confusing, so let’s look at a few common examples.
NO BUILDUP
One of the most common types of silicone is called “cyclic” because the chain of silicone atoms that composes this kind is linked together in a ring structure. This type of silicone evaporates and won’t build up on your hair at all. It gives a silky-smooth feel and leaves the hair with incredible slip when wet. It’s used in both leave-on stylers and rinse-off conditioners and is commonly called cyclomethicone or cyclopentasiloxane.