

🌱 Elevate your scalp game—because fuller hair starts at the root!
OUAI Scalp Serum is a dermatologist-inspired, clean formula designed to promote thicker, fuller-looking hair by nourishing the scalp with Red Clover Extract, Siberian Ginseng, peptides, and hydrating hyaluronic acid. Free from parabens, phthalates, and sulfates, it suits all hair types and features a signature Cape Town scent. Ideal for daily use, it supports scalp health, reduces dryness, and enhances hair density without greasiness.




















| ASIN | B0B137RLYG |
| Best Sellers Rank | #11,291 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #96 in Hair Regrowth Treatments |
| Customer Reviews | 4.4 4.4 out of 5 stars (785) |
| Is Discontinued By Manufacturer | No |
| Item model number | 5113 |
| Manufacturer | OUAI |
| Product Dimensions | 1.89 x 1.89 x 4.13 inches; 2.56 ounces |
| UPC | 815402024116 |
M**A
Great for postpartum hair loss.
Have been using for postpartum hair loss and it works really well. Does not leave hair greasy and smells great. I've been using on my scalp line for 6 months and have a lot of new hair growth.
A**P
The smell!!!!! OMG!
I’m not new to using hair serums, I’ve spent countless thousands of dollars on hair products only for the dream of one day having model like hair. It hurts that my genetics made me have fine, thin baby like hair but things got worse for me after menopause, which I probably lost half of my hair between that and T pallets suggested by the doctor. Anyways, it’s been rough but this product has been my all time favorite. Also, the smell..Cape Town, I love it.. I make my husband smell it on my hair and he likes it too. I like that it has peptides and I can see new hair growth all over the areas I put it. I know in MY case, HRT helped with hair loss, but this helped create a good environment to regrow hair along with my derma stamp. These three are my holy grails, plus I also put oils on my ends before washing to protect the lengths. Great job OUAI! Love your products!!
G**D
This product really works.
The texture is really good and it makes the scalp absorb faster, I feel happy to have bought this product.
A**A
Amazing smell and product
Ok so this is a before and after photo of the product. This is 2 weeks difference and I’m shooked on how much hair has grown! Now I’m giving this a 4 star because I’m also drinking pumpkins seed oils capsuls that helps with hair growth and I’ve been using both at the same time. So it could be both products working. Overall I Am happy with my results so far. Also it smells amazing it’s worth the price.
J**E
Amazing!
I was hesitant on buying this product and after doing my research and watching/going through a bunch of tiktok videos and ratings I am so Glad I bought it! It made my scalp so much healthier and cleaner. It doesn’t leave a greasy feeling and has helped with hair loss.
H**R
Love it
On day 2. Smells really good doesn’t leave my hair greasy at all! Even when I use it on dry hair
M**P
Migraine central
This product gave me two migraines and multiple headaches in one week. Mine does not have a scent, but it is clear this is not a product for me.
A**Z
It works!
This is after one month of use, my baby hairs are growing like crazy! I also notice my hair looks healthier. 10/10
S**A
I love this product! This is my second time buying and my hair has grown so healthy and has grown longer since using this!! 10/10
C**Y
Great to use in between washes, and has delayed dandruff a little. Still in the process of using it.
M**R
Keeps my old hair and see new hair, does what it say but need patience
P**E
Does not make my hair greasy. My hair is now very soft.
P**N
Smells amazing. I mostly apply after washing my hair. I believe it also helps with hair falling too. Can see some baby hair. Just need some time to observe
Trustpilot
1 day ago
2 months ago