By Victoria Moorhouse
Oct 17, 2018 @ 12:30 pm
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I definitely cannot justify spending $350 on a keratin straightening and smoothing treatment right now (the holidays are already stressing me out, tbh), but I can make room in my budget for a $5 hairstyling spray that apparently acts like one. That's how TRESemme's Keratin Smooth Flat Iron Smoothing Spray came into my life. Long story short, it was a Lincoln well spent. 

Before I get into how the drugstore spray works (and trust, it works!), we need to go over the concept of keratin and what it matters. Keratin is actually the structural protein of your hair: It's what gives it its shape and strength. Through color-processing and heat damage, your hair's keratin is often damaged, which results in fly-aways, frizz, and breakage. What salon-based keratin treatments do is fuse liquid keratin (in addition to other chemicals) to the hair shaft so that the hair is left smoother and shinier instantly.

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This spray uses a similar logic. It's made with keratin and also marula oil, which adheres to the hair, after it comes in contact with heat, the duo help create a smooth, shiny effect. It also helps detangle the hair and provides heat protection up to 450 degrees.


You see the biggest results when you use it after blow-drying and flat-ironing, but not one for super straight hair, I decided to give it a try just before blow-drying. 

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After brushing my hair, I spritzed in a generous amount of the spray and rough-dried my hair. Once I got most of the moisture out, I took a brush to it and finished blow-drying. I noticed my hair, which is usually accented with some flyaways, was much smoother and incredibly soft. My co-worker even pointed out that it looked way shinier that usual, and the pic above really proves the point. My favorite part was that it didn't mess with my natural wave, and my hair still had movement. 

The product claims it controls frizz for up to 48 hours, but "controls" doesn't mean eliminate. Also, to put it into prospective, actual keratin treatments last for two (or more!) months.

By the end of the day, those few stray flyaways I always deal with are sadly back in action when I use this spray, but still... Spending only $5 for one good hair day, IMO, is a damn good deal.