I’m not sure why the reviews are not high on this product. I do have naturally straight, fine (not thin) hair, and I do like using a blow dry lotion when drying my hair straight to make it super smooth. This does the trick for me without making my hair greasy looking or very thin. Some smoothing blow dry lotions/serums often lose the volume. Unfortunately, I can’t run up to the store to get this and need to order online at Target.