Silicones
Super versatile ingredients used very commonly in skin and hair care products. They are actually nothing new: ancient Egyptians already converted sand (sand is a silica and silicones come from silica) into glass using essentially "silicone technology" in 3000 BCE.
As for skincare, silicones are used mainly because they are incredibly slippery. Even a small amount of them can take an average formula to a completely new luxurious level.
As for hair care, silicones provide slip and shine and make the hair smooth like nothing else.
The problem with silicones is that... well, there isn't really a problem with them. Yes, for some people, they do not seem to work that great, but they are way more bad-mouthed by the natural personal care industry than deserved or proved. Let's have a look at the three most common negative claims:
- Silicones suffocate skin: Skin does not breathe so this is hard to understand in the first place. But even if skin breathed, it could with silicones on top of it. As they have large molecules with plenty of space in-between them, putting a plastic bag all over your face is not the right metaphor but putting a fish-net all over your face is a better one.
- Silicones cause or worsen acne: That one is not true either, what's more, research shows that silicones can help to make drying and irritating anti-acne ingredients more tolerable.
- Silicones build up on your hair and ruin it: While it's true that some silicones cling onto the hair more than others do, but there are many very light, volatile types that do not build up at all. The heaviest one used in hair care is dimethicone, which smoothes the hair very well but can be a bit more difficult to wash out. If you feel you have a "build-up" problem, avoiding silicones altogether is still overkill. Choosing products without dimethicone will probably solve your problem.
Well, that's pretty much the gist of silicones in general. If you want to read about the specific types, click the list below.