Smooth Finishing Treatment



  • Reduce Frizz
  • Add Shine
  • Heat Protection

This leave-in treatment dramatically moisturizes and softens, transforming hair with lush, frizz-free smoothness and shine.

  • Lightweight formula smooths, seals and protects hair from heat and the elements.
  • Eliminates frizz and adds luscious shine.
  • Controls even the most difficult-to-manage hair.
  • Protects and prevents color from fading.

What’s Inside?

01 Repair


Botanicals, put to work

Our powerhouse botanical complex is delivered through patented Japanese nanocapsule technology, which is absorbed into the innermost layers of your hair follice, reaching your most damaged areas and repairing from the inside out.

The result? Healthy, beautiful, strong hair.

DTX Capsules

Rapid repair capsule

inner stock capsule

hydro renew capsule

02 Self-Care


Level up
your “me time”

Our signature scent, developed exclusively for Stephen Knoll NY, smells amazing and makes you feel your best!


Reduce Stress

Increase Happiness

03 Style


Turn Heads

Our products return hair to its healthiest and strongest state while helping you achieve head-turning New York City salon quality style.

Not sure where to start? Take our 1-minute hair quiz for your personalized routine.

Start Quiz

04 Results


Before & After

Before & After

“When I tell you this has changed my life...”


Stephen’s Pro Tips


The perfect smoothing treatment to throw into your carry-on for travel, purse or gym bag for use any time, any where.


Great for anyone who has curly, coarse, frizzy, short hair to smooth, shine & refine. Dull, dry or damaged hair in need of extra shine, use this for a luminous finish. Can also use before you go to bed as a leave in treatment.


The essential treatment for anyone with overly dry/damaged hair or split ends. Smoothing Finishing Treatment will moisturize, polish, and treat hair.


The finishing touch - polish the ends after your blow-dry.


Apply a pea-sized amount to palms and rub together to warm the product before application.


Great for a man's beard, smooths hair and makes it softer.

Frequently asked questions

Customer Reviews