My hair is really thin and flat. And also I have really little hair.

Sunsilk anti flat is for flat hair obviously, which gives you body and lots of volume for your hair, you can get a free sample at sunsilk.ca

Sunsilk anit-flat is cheap where I live and it works really good. they have a collection of anti flat stuff.
Shampoo, conditioner, and anti-flat creme.
remember its the yellow sunsilk!

Bumble and Bumble Gentle shampoo, Super Rich conditioner, Thickening Spray. I got back from the salon and i have really thin hair and she cut it at my shoulder with lots of layersand recomended these products for my ultra thin hair and it works!

I don't know about making it thicker...My just got thick on it's own. But the Sunsilk Anti-Flat shampoo, conditioner, and cream stuff works SO well. Put the cream stuff in your hair after you wash it (only use a little bit). Flip your head upside-down and blowdry it like that. It will get so much volume in it.

pantene pro-v full and thick