One or Two Japanese Hair-Straightening Treatments at Simply Gorgeous Beauty Salon (Up to 57% Off)

Calabazas North

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In a Nutshell

Stylists use thermal reconditioning solution with flat iron and neutralizer to straighten strands

The Fine Print

Promotional value expires 180 days after purchase. Amount paid never expires. 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. Valid only for option purchased. Additional $30 for hair past shoulder length. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

Choose Between Two Options

  • $109 for one Japanese hair-straightening treatment ($230 value)
  • $199 for two Japanese hair-straightening treatments ($460 value)

Japanese Straightening: Chemistry of the Curl

Unlike a flat-iron or keratin treatment, Japanese straightening permanently removes hair’s curl. Find out how in this Groupon guide.

Curly hair is caused by genetics, of course, but it’s also caused by some basic chemistry. Ringlets, kinks, and waves arise when pairs of sulfur atoms in the amino acid cysteine link up together, forming, appropriately enough, disulfide bonds. (There’s a lot of cysteine in hair because it’s one of the major building blocks of keratin, the protein that makes up most of the hair shaft.) During this process, each of the sulfur atoms sheds an electron, and that’s what allows one of the most reliable techniques for straightening hair to work.

During Japanese hair straightening, a reducing agent—in this case a chemical known as thioglycolate—forces electrons back onto the sulfur atoms, reversing the process that created the bond. After the hair is nourished with shampoo and a protein-rich conditioner, the stylist will apply a solution of thioglycolate that’s activated by the heat of a dryer. A flat-iron then makes hair as straight as possible before a chemical neutralizer tells the thioglycolate to stop processing and keeps the hair in its new shape.

The process often takes three to four hours, and clients shouldn’t style or wash their hair for about three days afterward to avoid disrupting the treatment or losing that nice salon smell sooner than necessary. The chemical reaction is permanent, and changes the actual structure of the hair—that’s why Japanese-straightened hair won’t curl again the way keratin-smoothed or flat-ironed hair eventually does, at least until it grows out. At that point, if you want to maintain the sleek look, you can go back to the salon to touch up the roots.

Customer Reviews

The service is good the lady was nice enough to do my hair service right when I walked in. That was super nice of her instead of waiting for a whole month likes most salon make you wait. She did a great job on my hair I love it ! I am going to her for service again. Thank you very much Roxane Singh..........
Renee S. · September 16, 2016
I love this salon.
Akanksha S. · May 16, 2015
Hiding behind McDonald's. The owner is friendly, and took a care of the job she is doing.
Chung-Hui L. · January 29, 2015
Merchant Location Map
  1. 1

    Calabazas North

    7280 Blue Hill Drive

    San Jose, CA 95129

    +14086487870

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