Wet Hair

Wet hair is fragile: the 'pores' are completely open. This is why you should be very careful combing it while wet - best done while conditioner is working. Hair gets longer when it is wet. Combine these two and putting wet hair in a bun is not a good idea: the 'pores' will close very slowly, making some stay open. This makes it much more vulnerable to damage (dries out the core too much-the same can happen after perming-albeit even worse). When you put your hair wet in a bun and it dries, the hair is artifically stretched - again not such a good idea.

AnaisSatin: the longer it stays moist, the more frizz gets into it (unless you undo the bun when it is 100% dry). Removing frizz is hard work: blowdrying in the direction of the ends, use a good brush and put tension on it. Then all the 'pores' close in the right direction and the frizz disappears - until new moisture comes along. Use products with plastics (PVP most common) in it, to isolate your hair from the moisture. PVP is what makes the product work, not the stuff they tell on ads.

I bun my hair wet all the time, and it seems to like it better than bunning dry, or air drying without bunning.. wet bunning prevents frizz for me, holds in the moisture for longer time.

Like clay.. when working in ceramics, you don't let clay dry too fast or it will warp/crack/etc..

Wet hair is fragile, so I don't brush it.. just use a seamless comb.