Keratin Treatment with Optional Haircut at Hair by Cortney (Up to 54% Off). Two Options Available.

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Up to 54% Off

Customer Reviews

9 Ratings

I got the keratin treatment and my hair is amazing smooth! And still is after a couple months will definitely do again!
Patti C. · November 15, 2017
Courtney was wonderful. My hair looks and feels great. I will be going back in December
Miranda G. · October 21, 2017
She is awesome!
Sally D. · September 10, 2017

What You'll Get


Choice of:

  • Keratin Treatment
  • Keratin Treatment with Haircut

Hair Relaxers: Breaking Nature’s Bonds

Thanks to hair relaxers, you can walk into a salon curly and leave straight. Zoom in on the chemistry of your curls with Groupon’s introduction.

Human hair is flexible enough to run wild as a mountain stream one day and fall as straight as water over the Hoover Dam the next. But to make lasting changes to its texture, you need to go beyond the reach of styling tools down to the chemical level. All hair is made of keratin, a hard protein that’s also central to our skin, nails, and exoskeletons. To form a single hair, keratin molecules link together in different patterns with the help of three types of chemical bonds: hydrogen bonds and salt bonds, both of which break easily in water and reform when dry, and disulphide bonds, which can only be broken by certain chemicals. In straight hair, the disulphide bonds are evenly aligned. In curly hair, however, the bonds occur irregularly and at odd angles, causing the hair to twist and kink on its way down.

When you style your hair with heat or water alone, you break the weaker hydrogen and salt bonds to allow your do to take a new shape. Once water touches your hair, however, the bonds reform in their customary way, and you’re back where you started. Chemical relaxers, therefore, work by dissolving the hair’s tough, waterproof disulphide bonds and preventing them from reforming in their normal pattern.

The most powerful hair relaxers contain sodium hydroxide, otherwise known as lye. Given lye’s presence in drain openers and oven cleaners, you might guess that it can be quite harsh on human skin, which is why no-lye relaxers made from guanidine hydroxide are also common. There is a trade-off, however: some find that lye relaxers are harder on the scalp but gentler on hair, and work more quickly so that you can get back to staring at your hair in the mirror sooner. An experienced stylist can recommend the best method for your hair.

The Fine Print


Promotional value expires 120 days after purchase. Amount paid never expires. Valid for new clients only. Additional fees may apply depending on hair length, texture, and density. Appointment required. Merchant's standard cancellation policy applies (any fees not to exceed Groupon price). Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Valid only for option purchased. All goods or services must be used by the same person. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Hair by Cortney


By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.