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💁♀️ Elevate your hair game—thicker, fuller, unstoppable volume in a spray!
OUAI Hair Thickening Spray is a 6 fl oz volumizing mist that instantly boosts hair thickness and fullness from roots to ends. Infused with Amaranth Peptide and Amino Acids, it strengthens and repairs while providing heat protection up to 450°F. Its lightweight formula delivers all-day volume without stiffness, making it ideal for fine, flat, or thinning hair. Clean, cruelty-free, and designed for effortless styling, this spray is a must-have for professionals seeking fuller, healthier-looking hair.





















| ASIN | B0C6RKD616 |
| Best Sellers Rank | #12,895 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #166 in Hair Sprays |
| Brand Name | OUAI |
| Customer Reviews | 4.2 out of 5 stars 450 Reviews |
| Hair Type | Coily, Curly |
| Item Form | Liquid |
| Item Volume | 6 Fluid Ounces |
| Item Weight | 0.49 Pounds |
| Liquid Volume | 6 Fluid Ounces |
| Manufacturer | OUAI |
| Material Type Free | Cruelty Free, Gluten Free, Paraben Free, Phthalate Free, Sodium Lauryl Sulfate Free |
| Number of Items | 1 |
| Product Benefits | Thickening |
| Scent | Cape Town |
| Scent Name | Cape Town |
| UPC | 815402025861 |
| Unit Count | 6.00 Fluid Ounces |
C**.
Love this product
I got a sample size of this from Sephora and absolutely fell in love with it. It’s a very clean scent. I spray it root to end even though it says for roots while my hair is damp and blow dry. It adds texture and lift for me. Sometime I even spray it in while my hair is dry and hot it with the hair dryer. I am a forever fan of this. Not sure it makes it look thicker but the texture it adds is a plus for my fine flat hair. I tease it at the root a little and it stays lifted all day.
L**A
Quai Thickening spray. A little goes a long way. Don’t over spray
I’ve used Quai but not this one. I had cancer and lost all my hair It’s been three years and I have baby fine curly now. I had straight hair. You see all the bald spots that won’t grow back. So I tried this thickener and it does make my hair feel and look thicker. I can do a good blow out. It does have a texture and you can feel the product. not like greasy - I just feel the thickness.
S**E
Good product.
Works well, hair looks and feels thicker.
D**S
Really does give you volume!
Facebook ad got me again! I wanted to try this spray since their shampoo gets such high reviews. And it works great. Even though it feels thick going on, it gives me lots of volume! Ordered from Amazon instead of the OUAI website because I could get it in two days!
D**K
Need a lift?
This is a good product, I want some lift and texture but nothing sticky or too heavy, this fits the bill for me. Very light fragrance nothing to offensive. Will purchase again.
A**R
Leaves a residue in hair
Product does thicken hair but leaves a residue making the hair feel sticky and weighted down.
J**N
Doesn't seem to do anything it says
I've used other thickening products so I'm not new to these products. I have tried using with styling cream during pre-styling and without and it does not seem to "thicken" or make my hair look fuller. I have fine hair and have noticed it looks greasy or there's hair separation (opposite of thickening) after I apply this product. Would not recommend. It smells good though, but smelling good isn't going to get the job done.
H**T
Loving this spray
I am absolutely loving the OUAI Hair Thickening Spray! This product is super effective and has become an essential part of my hair routine. It genuinely transforms my fine hair, instantly delivering a thicker, fuller look that gives me that amazing "fresh from the salon" volume every single time I use it.
C**S
Love everything Ouai
Great product but then every Ouai product is!
R**A
Spray ouai x l’ispessimento dei capelli
Ottimo rispecchia le aspettative
L**R
Very good
Amazing products
F**M
Good product
Use this with the matching shampoo and conditioner. Adds volume without making hair feel sticky or weighed down
J**Y
It’s good
I think this is the best hair thickener I’ve bought, I’ve got thinning hair tried many other products but like this for I do think my hair looks fuller and it lasts.
Trustpilot
2 months ago
1 month ago