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Hair is dead, skin is not. Your body doesn't care about what you do to your hair, you can cut it, dye it, anything as long as it doesn't touch the root. Tattoos
by GuB-42 2y ago
Hair is dead, skin is not. Your body doesn't care about what you do to your hair, you can cut it, dye it, anything as long as it doesn't touch the root. Tattoos are about injecting a foreign substance in live tissue, which triggers an immune response, and that's what the article is about. There is a reason tattoos hurt and haircuts don't.
- blinkingled 2y agoWell sure, but the scalp underneath the hair that's gotta have some skin properties - sure it's thicker than the rest of the skin and has some protective properties against some forms of environmental damage but the dye does go in there and years of use should cause _some_ thing - not sure there's any research around what exactly.
- squidbeak 2y agoIn dyeing your hair, do you inject the dye beneath the epidermis?
- blinkingled 2y agoSkin absorbs stuff without having to inject it below.