OUAI Fine Shampoo 300ml, Model 2532

Model: OUAI Fine Shampoo is a liquid shampoo formulated for fine hair, with keratin, biotin and chia seed oil. The listing claims it adds weightless body and helps strengthen hair, and describes it as free from parabens, phthalates and sulphates.

At a glance

Keratin, biotin and chia seed oil are listed as ingredients intended to help strengthen hair and manage frizz and flyaways.
The listing positions the shampoo for fine hair and claims a clean, weightless look with added body.
The listed scent is Mercer Street.

Price

$51.67Save 16%

Reference price: ~~$61.33~~

Price checked: 12 Nov 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

OUAI Fine Shampoo - Volumising Shampoo with Strengthening Keratin, Biotin & Chia Seed Oil for Fine Hair - Delivers Clean, Wei

$43.27

Pros and cons

Pros

Targets fine hair with a volume-focused formula rather than a general hair-type claim.
The listing identifies several ingredients, including biotin, hydrolysed keratin and chia seed oil.
Claims a formula free from parabens, phthalates and sulphates.

Cons

Customer feedback is divided on the fragrance and whether the results justify the cost.

Technical specifications

16 specifications

Identity
Brand	OUAI
Model	2532
Item form	Liquid
Hair type	Fine
Scent	Mercer Street
Age range	Adult
Hair colour suitability	All Hair Colors
Product benefit	Strengthening
Product use	Volumizing, strengthening for fine hair

Formula
Features	Vegan
Material type free	Paraben Free, Phthalate Free, Sodium Laureth Sulphate Free, Sulphate Free, cruelty free

Dimensions and weight
Dimensions listed	6.4 x 6.4 x 14 centimetres
Weight listed	0.79 Pounds

Pack size
Liquid volume	10 Fluid Ounces
Number of items	1
Package size name	300ml

What to know before buying

Listing details to confirm

The listing gives the size as both 10 Fluid Ounces and 300ml. Dimensions also appear in two slightly different forms, so confirm the selected item's details if exact packaging measurements matter. Product and formula benefits are listing claims, not independently verified results.

Who is it for?

A good fit for

People with fine hair seeking a shampoo positioned to add body and volume.
Buyers looking for a shampoo listing biotin, hydrolysed keratin and chia seed oil.
Shoppers who prefer a product described as free from parabens, phthalates and sulphates.

Less suited to

People who need an unscented product or are sensitive to fragrances, as customer reactions to the scent are mixed.
Buyers prioritising a low-cost shampoo, as customer feedback is divided on value.

OUAI Fine Shampoo 300ml, Model 2532 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 4,238 ratings

5 stars75%75%
4 stars10%10%
3 stars6%6%
2 stars3%3%
1 star6%6%

Customer feedback is generally positive about perceived effectiveness and hair appearance, including reports of softer, shinier and more voluminous hair. This aligns with the shampoo's fine-hair and volume positioning, but does not establish that every user will get those results. Reactions to the Mercer Street fragrance vary, and opinions are also split on whether the product's results justify its cost. The aggregate rating is mostly five-star, though a smaller share of ratings are low, so it should not be taken as a guarantee of a particular outcome.