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Product guide

OUAI Scalp Serum, 60ml

OUAI Scalp Serum is a leave-on scalp oil presented for hydration and thicker-, fuller-looking hair. Its listed ingredients include hyaluronic acid, Arctic Root, Siberian Ginseng and Chaga Mushroom, while customer feedback is divided on effectiveness and irritation.

At a glance

Listing describes daily scalp application and targets hydration and a healthier scalp barrier.
The product description names hyaluronic acid, Arctic Root, Siberian Ginseng and Chaga Mushroom.
The listing describes the Cape Town scent with spearmint, ginger, basil and green fig notes.

Price

£37.81Save 15%

Reference price: ~~£44.49~~

Price checked: 14 Nov 2026

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Often bought together

OUAI Detox Shampoo - Clarifying Shampoo for Build Up, Dirt, Oil, Product and Hard Water - Apple Cider Vinegar & Keratin for Clean, Refreshed Hair - Sulfate-Free Hair Care - 300ml

£21.37

OUAI Fine to Medium Hair Treatment Mask - Lightweight Deep Conditioning Hair Mask with Shea Butter, Keratin & Panthenol - Helps Hydrate, Fight Frizz, Strengthen & Repair Damage (236ml)

£27.20

Pros and cons

Pros

A 60ml oil format is intended for direct scalp care rather than lengths-only hair treatment.
The listed skin types span combination, dry, normal, oily and mature.

Technical specifications

14 specifications

Identity
Brand	OUAI
Model	5113

Product details
Form	Oil
Volume	2 Fluid Ounces
Active ingredients	ginseng
Scent	Cape Town
Listed benefits	Hydrating
Recommended use	Hair Strengthening
Material features	Cruelty Free, Vegan
Free from	Paraben Free
Skin types listed	Combination, Dry, Normal, Oily, mature

Dimensions and installation
Dimensions listed	4.8 x 4.8 x 10.5 cm; 72.57 g
Weight listed	0.16 Pounds

Origin
Country of origin	USA

What to know before buying

Listing details to confirm

The listing calls the product an oil and gives the size as both 2 Fluid Ounces and 60.0 millilitre. These are both provided volume descriptions, while the title rounds the size to 60ml. The title also names red clover and peptides, whereas the feature text names hyaluronic acid, Arctic Root, Siberian Ginseng and Chaga Mushroom. Confirm the ingredient list if a particular ingredient is essential. Dimensions include a metric mass while a separate weight field gives 0.16 Pounds, so the listed weight descriptions are not consistent.

Who is it for?

A good fit for

People looking for a leave-on scalp oil with a hydration focus and a fragrance described as Cape Town.
Buyers who prefer daily scalp-care application and want the listing's thicker-, fuller-looking hair positioning.

Less suited to

Anyone seeking a guaranteed hair-growth result, since the listing describes intended benefits and customer feedback on effectiveness is mixed.
Those who need an unscented formula or are concerned about possible scalp irritation.

OUAI Scalp Serum, 60ml · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 952 ratings

5 stars69%69%
4 stars13%13%
3 stars10%10%
2 stars3%3%
1 star5%5%

Customer feedback highlights the scent, a non-greasy feel and ease of application as positives. Reported experiences with effectiveness and value are mixed, and customers disagree about scalp irritation. For buyers considering a daily 60ml leave-on scalp oil, those differences matter because the listing's fuller-looking-hair positioning is not a guaranteed outcome, and a scented product may not suit everyone.

Positive themes

Customers praise the scent.
Customers describe the formula as non-greasy.
Customers report that application is easy.

Mixed feedback

Reported effectiveness varies, with some describing benefits and others no positive effect.
Value for money receives mixed feedback.
Customers disagree about whether the serum causes scalp irritation.

Frequently asked questions

How is the OUAI Scalp Serum intended to be used?

The listing recommends daily application. It does not provide detailed application amounts or a step-by-step method in the supplied details.

What ingredients are named in the product description?

The feature text names hyaluronic acid, Arctic Root, Siberian Ginseng and Chaga Mushroom. The title separately mentions red clover extract and peptides, so check the product's ingredient list if exact composition matters.

Does the serum guarantee thicker hair?

No guarantee is established. The listing positions it for thicker-, fuller-looking hair, and customer feedback reports mixed effectiveness.

What does customer feedback say about irritation?

Reports are mixed, with customers disagreeing on whether it causes scalp irritation. The available feedback does not establish how an individual will respond.