This product is awesome! I previously used Toppik and Hair Illusions. Both of these products worked well. Toppik is very similiar to this product only Toppik left my hair looking dull and dry. Finally Hair does not.My hair looked a lot darker (covers gray well), and the color is rich and healthy looking.The other product I tried, Hair Illusions- looks incredibily natural - it's actually human hair - think the tiny pieces of hair left over after short hair is shaved with a razor. Only problem...Hair illusions does not adhere to your hair - at all!. I tried everything - still always ended up with short pieces of hair everywhere.Finally Hair adheres amazingly well. I was able to touch my hair after applying it, without any residue on my fingers or hands. Also, no signs of this product rubbing off on my sofa cushions or clothes. A big plus for me is that Finally Hair goes on alot faster and smoother than either of the other two products. I have significant thinning so my morning hair routine was taking more than 30 minutes- just trying to apply the other products and/or get them to stick to my hair. I bought the bulk size of Finally Hair and put it in my Toppik container - it goes on smoothly and quickly. So far I've not experienced any major problems with clumping except when there is too much styling product built up in my hair. Then I know it is time to wash my hair and start over again!