1 / 7OAUSTAR Hair Serum, 110 ml
OAUSTAR Hair Serum is a coconut-scented oil formula listed for all hair types. The manufacturer describes it as hydrating and shine-enhancing, with oils and shea butter intended to smooth frizz and help manage dry hair.
At a glance
- Oil serum intended to smooth frizz and add shine, according to the manufacturer.
- Ingredient list includes argan, coconut, jojoba, hempseed and sunflower oils, plus shea butter.
- Directions allow application to damp or dry hair, using a small amount.
Reference price: $24.99
Price checked: 13 Nov 2026
View offerAhead of Black FridayExplore the selectionPros and cons
Pros
- The listed 110 ml volume and oil format suit buyers looking for a leave-in hair serum.
- The formula lists several plant oils and shea butter, and is described as suitable for all hair types.
Technical specifications
9 specifications| Brand | OAUSTAR |
|---|
| Item form | Oil |
|---|---|
| Liquid volume | 110 Millilitres |
| Scent | Coconut |
| Hair type | All |
| Listed benefits | Hydrating, Shine |
| Free from | Paraben Free |
| Ingredients | Argania Spinosa (Argan) Kernel Oil, Coconut Oil, Jojoba Seed Oil, Hempseed Oil, Sunflower Seed Oil, Shea Butter, Oliver Fruit Oil, Orbignya Oleifera Seed Oil, Oliver Fruit Oil, Parfum |
| Dimensions listed | 14 x 4 x 2 cm; 110 Grams |
|---|
What to know before buying
- The listing makes benefit claims such as helping with split ends, breakage and heat protection, but does not provide test results or usage measurements to quantify those effects.
- Directions say to use externally, avoid eye contact, and rinse immediately with water and discontinue use if irritation occurs.
Who is it for?
A good fit for
- People seeking an oil-based serum for smoothing frizz and adding shine.
- Buyers looking for a coconut-scented product with a multi-oil ingredient list.
Less suited to
- Anyone seeking a fragrance-free product, as the listing names coconut scent and includes parfum in the ingredients.
- Anyone who needs independently verified performance claims for hair repair or heat protection.

Customer reviews on Amazon
- 5 stars
66% 66% - 4 stars
12% 12% - 3 stars
15% 15% - 2 stars
7% 7% - 1 star
0% 0%
Only aggregate ratings are provided, with no written customer feedback to identify specific strengths or concerns. The distribution leans positive but also includes lower ratings, so it does not establish how the serum performs for particular hair types or uses.
Frequently asked questions
How much product is listed?
The stated liquid volume is 110 Millilitres.
How does the listing say to apply it?
Apply a small amount to your hands and run it through damp or dry hair, then style as desired.
What ingredients are listed?
The ingredient list names argan, coconut, jojoba, hempseed and sunflower oils, shea butter, olive fruit oil, babassu seed oil and parfum.
Is the serum suitable for all hair types?
The listing says it is suitable for all hair types. That is a manufacturer claim, not an independently confirmed result.

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Offer details
- Use externally only. Avoid contact with eyes. If irritation occurs, rinse immediately with water and discontinue use.























