The Cezanne hair straightening treatment can help you get shiny hair. This product straightens hair without many of the dangerous chemicals found in other treatments. Ahead, learn what it does, how much it costs, how it works, if it's safe, how long it lasts and what reviewers say about it.

What It Does
The Cezanne hair straightening treatment straightens hair without formaldehyde and other harmful toxins, yet it lasts as long as many of the current products and treatments available on the market. Not only does it straighten hair, it also strengthens it from within due to its low pH balance. The active ingredient used in this treatment is sericin, a component of silk that wraps around each hair shaft, making it markedly different from other methods where the product just lays flat on the strand. Stylists that use Cezanne hair straightener on their clients find that the results are comparable to using a chemical treatment. This treatment is also gentle enough to allow you to get your hair colored immediately afterward.

How Much It Costs
The Cezanne Classic Keratin Smoothing Treatment can cost upwards of $350, but it depends on the salon.

How It Works
First, the stylist will wash your hair with Cezanne Clarifying Shampoo and dry it. Then he or she will carefully apply the straightening product to all of your hair. There is no need to use a cap and heat with this product.

There are two versions of the Cezanne treatment: the Classic and Express. The Classic is the longer treatment and remains on your hair for 30 minutes before getting rinsed out. The Express options stays on for only 15 minutes. After the product sets, the stylist will gently rinse it out, completely blow-dry your hair, and then flat iron it thoroughly. Cezanne also puts out a line of shampoos and conditioners for at-home maintenance.

Is the Cezanne Hair Treatment Safe?
Have no fear; this treatment is very safe. It doesn't contain the harsh chemicals that are found in most other popular hair straighteners, but the results are comparable. It is also easier and faster to apply than chemical-based products and reduces styling time.

How Long Does It Last?
On average, the Cezanne Classic treatment lasts for three to five months while the Cezanne Express treatment lasts for four to six weeks.

What Do the Reviews Say?
Reviewers are impressed with how sleek and smooth the treatment makes their hair and how easy it is to style. Dana Tizzio of Butterfly Studio in New York states that the product smooths frizz-prone hair and maintains the texture of curly hair while also making it easier to style. Amber Katz at Refinery29 raves that the product withstood a trip to steamy Thailand, gave her hair a gentle wave and made it very low maintenance.

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