We all love heat styling our hair these days, who doesn’t? So if you are someone who flat irons the hair almost everyday then Osis Flatliner Iron Serum Spray is a must-have product for you. It not only protects the hair from the high temperatures but it also gives the hair more sleeker effect and keeps it that way longer. The Osis Flatliner Iron Serum Spray also protects the hair from hot humid temperatures where it starts to poof up.

osis flatliner spray review

What the company claims?

Flattening iron serum for ultra straight flat styles
Ultra flat control
200°C heatproof ingredients
Long lasting flat effect
Humidity protection
Smoothes & reduces frizz
Enables you to master varying degrees of porosity
Apply to dry hair prior to use of hot irons. 1 2 3 4 strong control. SALON EXCLUSIVE. Do not spray into eyes.

osis flatliner spray review cu

How the Osis Flatliner Iron Serum Spray work for me?

Let me start off with the packaging. It comes in a sleek silver metal spray can with a red nozzle pump fitted on top. I really like it because not only was that accurate and allows me spray on equal amounts every time but also has a spray lock which comes in handy while travelling. The serum does not have a good fragrance when you spray it on but once you flat iron the hair, it dissipates so I give it a free pass on that. A lot of reviews said that this product was not that great so I was a little skeptical when I got it but once I learnt to apply the right amount in the right directions, it worked wonders on my coarse hair and on most days lasted until I washed my hair. It cut my flat ironing time by 1/3rd, super easy and fast. Unlike some other products, it doesn’t make the hair greasy or reduce the volume but makes it super sleek and tames all the frizz and flyaways really well. Overall, a really good product with huge quantity for a reasonable price.

osis flatliner spray review in
osis flatliner spray review nozzle

Turn Ons–

Reasonably priced
Quantity is huge
Works wonderfully on my coarse hair
Tames frizz to a great extent
Keeps the hair straight till you wash it
Versatile product for flat ironing
Makes the hair super sleek but doesn’t kill the volume
Doesn’t make the hair greasy at all

Turn Offs–

Lots of chemicals :/

Would I repurchase Osis Flatliner Iron Serum Spray ?

Yes! I love this a lot. A definite repurchase.


Hope you found the review useful!
What is your favorite hair spray? Tell me down in the comments section below.
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See you in my next post. Until then, stay beautiful.
Love you xo

Makeup Martini CEO

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