• NKSTB Liter Duo - 33.8 fl oz
  • Yellow NKSTB box with bottle on white background
  • infographic || reparative treatment, repairs damage & reduces breakage, protects fine, damaged r compromised hair, special conditioning agent soften, results last up to 5 months
  • Before and after of a woman with long grey hair — on the right bottom, her hair is frizzy; on the right top, it’s smooth

    Before

    After

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NKSTBNatural Keratin Smoothing Treatment System For Blonde Hair

NKSTB Natural Keratin Smoothing Treatment System For Blonde Hair

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Enjoy up to 5 months of smooth, shiny, manageable hair with this salon professional keratin smoothing system specially formulated for blondes, fine, fragile, or overprocessed hair. Clients who have damaged, fragile or over processed hair. 

WHAT IT IS

Reparative treatment. Not just for blondes!

WHO IT'S FOR

Clients who have damaged, fragile or over processed hair.

WHY WE LOVE IT

  • Keratin hair treatment blocks humidity and provides long-lasting smoothness.

  • Formulated with proprietary Signature Keratin for strong, healthy hair.

  • Soft, neutral-tint formula will not compromise the clarity of blonde, gray, and silver tones.

  • Salon professional smoothing system works to protect fine, fragile, overprocessed, or damaged hair.

  • Helps reduce breakage and delivers healthy-looking shine.

  • Dramatically reduces blow-dry time.

  • Enhances hair color vibrancy.

  • Cumulative hair smoothing results.

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Keratin Complex Treatment Collections

Find out about our keratin treatments.

Our full portfolio of customizable keratin smoothing treatments is designed to make your hair healthier, stronger and smoother.

LEARN MORE

Overall rating: 5.0 / 5 from 16 reviews.

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Review topics: ["hair"].

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Reviews

Amazing every time!

"This is one of the best products ever made!"

— Garianne C. (5/5)

Highly recommend

"Fabulous product! Great education, amazing quality and ingredients that don’t harm myself or my clients who are sensitive."

— Stephanie D. (5/5)

Keratin

"One of the best products ever used !!!"

— Tammy P. (5/5)

I’ve used this product for

"I’ve used this product for over 6 years and I love the NKST and Xpress !!"

— Chelsea A. (5/5)

Smooth and Hair frizz-free!

"Excellent product, non-toxic, has no harsh odors, and the results leave hair frizz-free when following the instructions."

— Alma Z. (5/5)

Great product

"I love this product, but it quite pricy"

— Janie R. (5/5)

"Love it !!"

— Cesar (5/5)

variety

"Loving the different options"

— Amy C. (5/5)

Love it! ❤️

"I’ve been using this natural keratin smoothing treatment for a long I’m pretty sure I started using it since they have launched it, I only use this brand for smoothing hair, I’ve tried other brands, and none of the other brands come close to this one. I always recommend it to my coworkers and my clients it’s the best on the market.. ❤️❤️❤️"

— Angelina S. (5/5)

Life changing!!

"I absolutely love this Keratin system! My hair would be a frizzy mess without it. It is life changing and I highly recommend anyone with either over processed or just dry blonde hair in general have a keratin treatment and enjoy!"

— Diana D. (5/5)

Q&A

What is included in the NKSTB kit for $150?
Hi Connie, Our 4 oz. NKST kit includes the following: 4 oz. Primer 4 oz. NKST (4) 5 oz. Keratin Obsessed
Will this product strip the color on a brunette?
Hi Sole, No, our NKSTB will not strip any color. It is safe to use on all hair colors and hair types. If you need further information about our product, please feel free to contact our Customer Service team at info@keratincomplex.com or 888-409-4445.