How to get thicker hair?

I've got highlights and they made my hair slightly thinner. I do everything I can to make them thicker, but I think I need more tips. I use Biolage shampoo. How can my hair get thicker? Do I need to put any special oils or product on them? Thanks =]

I cut my hair 2 years ago and it was up to my sholders, my hair grows SO slow, right now it down to the bottom of my ribcage, but its rather dead and the ends are super thin so they look bad :( over all my hair is just very very thin and broken because...

Hi everyone! Im 15 yrs old and I want my hair to be thick. When I was 10, my hair was super thick and now it is super thin! I think it has something to do with me not getting any hair cuts. I was thinking of trimming my hair, but how many in. should...

Hey guys i have very long hair but the problem is my hair is thinning and breaking on the crown part of my head like in the middle (center) but the rest is fine lol. how can i get it thicker it use to be very thick....would eating a tin of sardines every...

My hair is thick but i would really like it to be thicker and my hair is always greesy but my aunt said to not take to many showers because it would dry my hair out. i have meduim length hair and side bangs i also plan to either get side swept bangs...

I have thin medium lengthed hair. how do i get thicker hair? can you reccomend any prodects to get my hair thicker? its not falling out or anything, just very thin.

I used to have thicker hair before when I was younger, but when I started sixth grade I started losing hair and my hair growth decreased. I need something to help my hair growth increase without using any medicated or any other kinds of hair care products...

I'm Asian so my hair is naturally straight It's thin, but I'm not balding... When I don't apply hair wax on my short hair, it sticks up and makes my scalp visible especially under light or after a shower. What's the cause of this? How can I get thicker...