OUAIBestseller

Hair Oil

"Gloss, frizz control and heat protection from one pump. The overachiever of the shelf."
Our take

$32 Price at OUAI, checked Oct 2026.

The short answer

OUAI's Hair Oil is an ultra-lightweight, color-safe hair oil that smooths frizz and adds heat protection, with a blend that includes borage oil. It's worth it if you want shine and smoothness without hair looking greasy. A 1.5 oz bottle goes far since you start with one pump.

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What it is

OUAI Hair Oil is an ultra-lightweight hair oil that fights frizz, smooths hair and provides heat protection. It is color-safe and gives a sleek, high-gloss finish.

Key ingredients: a blend of oils including African galanga, amla and Asian borage
Sizes: full size (1.5 fl oz) and travel (0.45 fl oz)
Color-safe with heat protection
Use on wet or dry hair

How to use

On wet hair, apply one pump from the eyeline down, focusing on mid-lengths and ends, then style. On dry hair, warm one pump in your hands and smooth over.

Our Take

Why it made the edit.

Why we love it: It's light enough for fine hair if you keep it to mid-lengths and ends. Heat protection built in means one less product before styling.
Skip it if: You avoid silicones, which are the first ingredients on the list.
The catch: The lightweight feel comes mostly from silicones, so if you want a pure plant oil, this isn't it.

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