John Frieda ULTRAfiller+ Thickening Spray, Thickening & Strengthening Spray for Damaged or Thin Hair, Infused with Biotin and Hyaluronic Acid to Strengthen Hair for Thicker Fuller Results, 5 Oz

I think this works quite well. I do not have prior product knowledge to compare this too, have noticed some say it doesn’t work as well & has a funky smell but I think it works fine. It also smells good too. Maybe some got an old outdated batch or possibly theirs had been stored improperly in high heat? I’m a former stylist so I have used my fair share of products over the years. I’ve gotten used long ago to using different products for different things, like this product for example provides a decent thickening effect but not much hold so I use a spray gel, mousse or something w/hold with it. I also use a leave in conditioner as I have curly semi frizzy hair that is not super thick. I think the additional products also help add texture to my hair. As with everything it will react differently on everyone so try to base your decisions of reviews from people who have hair like yours. I would say this would be a good product for anyone with thin hair regardless if it is straight or curly & the diameter of each piece of hair is fine to regular.

I can't believe how well this product works! I have thin hair and thought I would try it. I have used other products similar to this, but they didn't work. This one actually works. It's not greasy and it smells awesome! I have curly hair and it also helps make them more full, and gives body. I highly recommend this item.

It does make my hair feel thicker - I am losing hair on my crown & it does seem to help hide it a bit.

Didn't work for me

Omg I love this stuff ! I wasn't going to buy it at first because I really didn't think it would do much good . My hair is fine and very straight and thin . In addition , I'm going through menopause which has caused my hair to become as dry as the desert 🏜. But I saw all of this positive reviews , so I decided to give this product a try . It's amazing! It really does what it says ! My hair looks so much fuller ! And it has so much body and some wave . My hair is normally poker straight. I'm going to continue buying this product for sure !

Amazing!! I have fine hair that has thinned over the years. I sprayed it on damp hair and blew it dry. I cannot believe the difference! Looks like and feels like I have so much more gair!

I’m a believer now! Not only did I notice how full my hair was after using this product, so many of my colleagues commented on it too!

Have used several times and didn’t notice much difference. My hair is short thin and gray. Was hoping for some more volume.It was not greasy and left hair soft.