I have very fine hair and have been using this for over 10 years. I've tried similar root boosting foams and sprays but always come back to this one. It's not sticky and will make it look like you have thick, full, voluminous hair naturally, without it being over the top huge. Just spray at the base or your crown and sides, or wherever you need more lift, massage it in a bit and blow dry. You can also skip the hair dryer and it will work, but won't have the same ooomph.