Is there a perfect shampoo out for my fine, easily damageable hair with no buildup or drying it out?
Shampoo usually doesn't cause build-up, that's what silicones do. Shampoo with sulfates strips away all the dirt including our own natural hair oils and that's what makes your hair feel dry. Now I don't know a specific brand but what I suggest is looking for a sulfatefree shampoo or start cowashing, if you're interested in natural hair. Good luck :)