When I’m in the shower, sometimes I’ll notice my hair is particularly greasy and once I’ve rinsed off the first round of shampoo, I’ll apply a second round. And no matter how small of an amount I apply the second time around, it turns into a baby bubble bath commercial with oodles of suds and bubbles and foam all over the place?
Is it because the first lot got used up on a larger bulk of grease and the second amount doesn’t and so it can bubble up more?
In: Chemistry
I’m reusing one of my comments from a similar post a while back cause I’m lazy
Shampoo lathers less when your hair is dirty because the surfactant that causes lather is grabbing all the dirty stuff and holding it. The second wash your hair is cleaner so it lathers more. It doesn’t improve cleaning ability, but a second wash might get out stuff the first wash didn’t. It’s just not cleaning “harder”
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