OUAI Hair Thickening Spray - Thickening & Volumizing Spray for Instantly Thicker, Fuller-Looking Hair - Protects, Strengthens & Repairs with Amaranth Peptide & Amino Acids

Lovely, smells gorgeous, feels really nice in my hair and gives it a bit of body.l have fine hair which goes flat quickly,this really helps.

Been using this for several weeks & genuinely notice a difference in my hair. Truthfully the only thickening hair product I’ve ever tried that I can say works for actual fine hair. & smells amazing so that’s great too

I've always had thin hair, which often leads to it just being almost unstylable. This thickening spray, when applied when the hair is still damp, did a good job of adding body and fullness, with almost no stickiness that I could detect. I wouldn't say though that it does much in terms of hold—for that, you'll still want mousse or styling gel, most likely. It has a nice citrusy smell to it, not strong though, just a little noticeable, and it dries quickly. Overall though, I think it works better than most of the other hair thickening / body products I've used.

Works well, hair looks and feels thicker.

I just got the OUAI Hair Thickening Spray and even after only a few uses, I can already see a difference. My hair looks fuller and has more volume without feeling stiff or sticky. It gives a nice lift at the roots and helps my style hold throughout the day. An added bonus, it smells absolutely amazing, like a high-end salon product. I’m excited to keep using it and see even more results over time. So far, I’m really impressed!

I used this one time, so don’t have a lot to say one way or another. I will say it took twice as long to dry my hair after using this product. I’m not sure I’m crazy about the texture it left either. My hair is usually quite shiny after using my Olaplex shampoo, conditioner and #6. With this quai thickener, my hair was not shiny but even looked a little dull. I won’t buy it again.