My cousins hair is really thin,how can she get it thicker?

Exercise, proper diet, hair thickening shampoo and thickening Moose. It will look thicker if she flips over and blow dries while upside down. Blowing volume into the roots first. Then blow dry the rest of the hair how she normally does. A good cut makes all the difference.

My cousins hair is really thin,how can she get it thicker?

why are you asking for your cousin? is it of a major concern to you?

there are volumizing shampoos out there - check your local drug store.

My cousins hair is really thin,how can she get it thicker?

she could get her hair layered and there are shampoos for that in stores, just look for it on the label.

My cousins hair is really thin,how can she get it thicker?

you cant itz naturally thin! Hair extensions, if itz a girl