This one of a kind product leaves hair feeling and looking thicker, but without any sticky or tacky feeling. Perfect for those with fine, thin or thinning hair. You'll be amazed at how great your hair feels and what's more, it's actually good for your hair and scalp. Thickening Serum is made with a unique blend of natural ingredients to promote healthy hair growth from the source,the scalp all in a lightweight formula that won't weigh thinning hair down.