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Details & care
What it is: A leave-in hair-growth treatment.
What it does: The water-light serum is infused with a clinically proven 5% Biomimetic Peptide Blend for visibly thicker, fuller and healthier hair. Hyaluronic acid features seven molecular weights that deliver multilevel hydration to the scalp, while niacinamide and vitamin B3 help strengthen the scalp's protective barrier.
How to use: Use once daily on dry or towel-dried hair. Fill dropper (1mL) and apply serum to areas of concern. Massage the serum with fingertips. Do not rinse. Style as usual.
- Dermatologist tested
- Noncomedogenic
- Made in the USA
- Nécessaire is a Certified B Corporation, which meets standards for verified social and environmental performance, public transparency and legal accountability to create a more inclusive and sustainable economy
- Item #7314434
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Nécessaire
This brand meets Nordstrom Responsible Brands criteria: Necessaire has B Corp certification, representing business practices with emphasis on social and environmental performance, accountability and transparency.
Most helpful positive review
Feb 7, 2024
great serum
phenomenal serum! I think people are confusing this with 'face serums' and assuming the viscosity will be thicker. this is literally the perfect consistency to absorb into the scalp without leaving the hair greasy — I use it daily and have noticed that my dry / flaky scalp is so much healthier. I go between using this and the Augustinus Bader hair serum (same consistency).
cbean14
Verified purchase
1found this helpful
Most helpful critical review
Jan 28, 2024
it literally is water
I just opened my mail and this thing is not a “serum” it is literally pure water. Whether this is the wrong item or something defective not sure what’s going on but this is water not serum. Has no odor nothing, not sure what happened here but I’m returning it.
michelleturn
Verified purchase
3found this helpful
5 stars
66%
4 stars
7%
3 stars
0%
2 stars
21%
1 star
7%
Sort by Most Helpful
tdaddy17
Dec 31, 2022
Not Feeling It
I love the idea of this serum. The consistency is nice and it’s fragrance free. Unfortunately it’s not super user friendly. The instructions say to use one dropper twice per day, but there is no market on the dropper and the bulb is too small to fill it up more that a quarter-half way. I have a dry, itchy scalp but am not super prone to flakiness. After using an entire bottle consistently, I’ve not seen any relief in itchiness or dryness.
9found this helpful
michelleturn
Verified purchase
Size purchased: 2 oz
Jan 28, 2024
it literally is water
I just opened my mail and this thing is not a “serum” it is literally pure water. Whether this is the wrong item or something defective not sure what’s going on but this is water not serum. Has no odor nothing, not sure what happened here but I’m returning it.
3found this helpful
cbean14
Verified purchase
Size purchased: 2 oz
Color: NO COLOR
Feb 7, 2024
great serum
phenomenal serum! I think people are confusing this with 'face serums' and assuming the viscosity will be thicker. this is literally the perfect consistency to absorb into the scalp without leaving the hair greasy — I use it daily and have noticed that my dry / flaky scalp is so much healthier. I go between using this and the Augustinus Bader hair serum (same consistency).
1found this helpful
Andrea J.
Reposted from Nécessaire
Jan 11, 2025
Good scalp serum
[This review was collected as part of a promotion.] I was happy to get the larger bottle on the sale. I've used it a few times now. Seems to help with dryness on my scalp. The larger size is a better deal so I'm notvsure if I'll order the smaller size. Maybe on a sale.
Kimberly J. M.
Reposted from Nécessaire
Dec 29, 2024
Seems to be working
[This review was collected as part of a promotion.] I've been using this product for about 6/7 months now and it seems to be slowly working. I have tons of new growth sprouting off the top of my head and by my hairline. Going to keep using it as it doesn't seem to be causing any issues and hoping for more growth.
Ani K.
Reposted from Nécessaire
Dec 28, 2024
Great serum not greasy
[This review was collected as part of a promotion.] This serum is very easy to use. The best part is that I don’t need to wash it off. It’s not like the oils out there that I need to dedicate 2 hours of my time for it. I just put few drops on my scalp , comb my hair, let it sit for few minutes then style my hair. This is my Third bottle, no hair shedding anymore and my hair is very soft. I don’t even need to use lots of hair products after styling my hair. My scalp feels healthier . I highly recommend this product.