Patented Japanese tech
Nanocapsule repair from within
Free US shipping
On all orders over $75
Customer service
Trusted on red carpets and editorial sets
Expert support
Personal ritual recommendations
Shop by goal
What your hair wants
Tell us where you want to go: deep repair, weightless volume, glass-like
shine, and we'll point you to the right products.
Loved by thousands
Our Bestsellers
New York Aesthetic, Japanese Cosmetic
Powered by Japanese nanocapsule technology
Developed in partnership with Kosé, our patented capsules carry botanicals,
proteins and moisture deep into the hair fiber, repairing from the
inside out, the way a salon would.
Every ritual, one place
Complete Rituals
Real Transformations
Discover your best hair
See the difference healthy, repaired hair makes. Drag to reveal the
transformation.
Before
After
The salon, since 1991
Where every formula is tested first
Two floors above East 62nd Street, on the Upper East Side. Cutting, color and treatment by specialists, in the room where Stephen Knoll started it all.
4.9 average · 2,400+ reviews
Loved by thousands
"My hair is so healthy, shiny and with so much volume now."
Yelp review
“People are attentive from receptionist to hair specialist to owner.”
Google review
“I've been living in New York City for 14 years now and I'm telling you no one cuts hair better.”
Yelp review
As featured in
Find your
perfect ritual
in 60 seconds
Answer a few questions about your hair and we'll build a personalized routine matched to your concern, texture and goals.
The Hair Journal
Healthy hair, explained
Expert guidance on repair, volume, frizz and scalp health. The science behind your best hair.
How to strengthen hair: 10 expert tips to reduce breakage
If you’ve been wondering how to strengthen hair, there’s a good chance your strands have already been giving you a few clues. Maybe your ends snap more easily, your hair tangles faster, or it simpl...
Read more
How to get rid of frizzy hair: 11 expert-backed tips
Learning how to get rid of frizzy hair starts with understanding why your strands are frizzing in the first place. Humidity gets much of the blame, but dryness, damage, friction, and your natural t...
Read more
Can Damaged Hair Be Repaired? 9 Tips That Really Work
Can damaged hair be repaired? Not the way skin heals. The hair you can see is no longer living tissue, so a broken cuticle does not close on its own and a split end never seals back together. That ...
Read moreNeed help?
Frequently Asked Questions
Every formula is built on patented Japanese nanocapsule technology, developed in partnership with Kosé. The capsules carry botanicals, proteins and moisture deep into the hair fiber, repairing from within rather than just coating the surface. It's salon-grade performance, born in a Midtown Manhattan salon in 1991.
Shop by concern (Repair, Volume, Hydration, Frizz or Curly Hair) or take our 60-second Hair Quiz for a personalized routine. Each ritual pairs a cleanser, treatment and finisher designed to work together.
Yes. Our shampoos are gentle and sulfate-conscious, and our treatments help seal the cuticle to protect color and shine. They're suitable for daily use on color-treated and chemically-processed hair.
Most people notice smoother, shinier, more manageable hair from the first wash. Structural repair and lasting volume build over two to four weeks of consistent use.
Enjoy free shipping on all US orders over $75. If you don't love your results, our satisfaction guarantee means you can return your order, hassle-free.