OUAI HaircareScalp Serum
Healthy hair starts with the scalp. This skincare-inspired serum helps balance and hydrate your scalp to create an ideal environment for hair to thrive.
Directions
Section hair to reveal the scalp.
Apply dropper of serum down the part, massage until it absorbs.
Style as usual.
Can be used on wet or dry hair.
Test results
-Ingredients
AQUA / WATER / EAU, POLYSORBATE 20, BUTYLENE GLYCOL,
GLYCERIN, POLYQUATERNIUM-7, SODIUM HYALURONATE, TOCOPHERYL ACETATE, ACETYL TETRAPEPTIDE-3, TOCOPHEROL, ROSA CENTIFOLIA FLOWER EXTRACT, DEXTRAN, TRIFOLIUM PRATENSE (CLOVER) FLOWER EXTRACT, ELEUTHEROCOCCUS SENTICOSUS ROOT EXTRACT, RHAPONTICUM CARTHAMOIDES ROOT EXTRACT, INONOTUS OBLIQUUS (MUSHROOM) EXTRACT, SELAGINELLA LEPIDOPHYLLA EXTRACT, ETHYLHEXYLGLYCERIN, DISODIUM EDTA, SODIUM HYDROXIDE , ACRYLATES/C10-30 ALKYL ACRYLATE CROSSPOLYMER, CITRIC ACID, SODIUM BENZOATE, PHENOXYETHANOL, PARFUM / FRAGRANCE, CARVONE, CITRUS AURANTIUM BERGAMIA PEEL OIL, CITRUS LIMON PEEL OIL, EUCALYPTUS GLOBULUS OIL, EUGENOL, LAVANDULA OIL / EXTRACT, LIMONENE, LINALOOL, LINALYL ACETATE, MENTHA VIRIDIS LEAF OIL, PINENE, TETRAMETHYL ACETYLOCTAHYDRONAPHTHALENES.
This list of ingredients may be subject to change, please consult the packaging of the product purchased.
Free gift
FREE Fine/Medium Hair Treatment Masque 30ml, when you spend £40 on OUAI Haircare.*
*One free gift per order. Valid until 28th September or whilst stock lasts. Your free gift will automatically add to the shopping bag page. Total at order summary must be £40 or more worth of OUAI Haircare products, after any Promotion Code, Brands You Love discount and before delivery charges are applied. Cannot be used in conjunction with any other Promotion and this offer is not applicable to previously made or pending purchases.
Excludes Gift Voucher, Sephora Favourites Advent Calendar and Fragrance Gift Box purchases. This offer is available online at Sephora.co.uk to UK Mainland customers only.
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Rated 3 out of
5
by
Amira from
Works with consistent use
With regular use, I noticed a difference and it has become a useful addition to my haircare routine. You do need to keep using it to maintain the results.
Date published: 2026-08-05
Rated 5 out of
5
by
Areeba from
Unsure if it really works but i like it
Not sure if its working but love how my hair feels
Date published: 2026-06-29
Rated 3 out of
5
by
Fiona from
Expensive but not really effective
Makes the scalp feel really good, but don’t believe the hype it doesn’t help your hair grow and doesn’t really have a smell
Date published: 2026-06-14
Rated 5 out of
5
by
Kerys from
10/10
this defo works! i used this every day and genuinely made my hair thicker
Date published: 2026-05-07
Rated 4 out of
5
by
Gavina from
Good
This serum has helped reduce the amount of hair falling out. I definitely notice that when I stop using it more hair falls out. You’d need to use it for atleast a week to notice less hair fall. I did notice some new baby hairs growing so I think it does help promote new hair growth. It doesn’t leave your hair super greasy either.
Date published: 2025-09-03
Rated 5 out of
5
by
Mehak from
Repurchased it so many times
It just feels nice on the scalp and held with scalp health, prevents dry itchy flaky scalp which inturn helps hair growth for healthier hair. takes time to see hair growth effects but my scalp feels nice using this.
Date published: 2025-09-01
Rated 5 out of
5
by
Naeema from
Reallly love thissss
It really works! My hairline had started to thin and it was stressing me out. I’ve been using this serum almost every night (sometimes I forget or get lazy) but i genuinely have seen such a huge improvement. It’s really given me so much confidence.
Date published: 2025-06-13
Rated 4 out of
5
by
Stavroula from
Excellent scalp serum
Feels very light when applied on scalp. I have seen a lot of baby hairs coming through since I started using it.
Date published: 2025-05-05
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