Hair Color & Extensions Salon — Midtown Manhattan NYC
Kasthetix Beauty Salon
Specializing In Dimensional Brunettes, Natural Coppers, Rich Reds & Bright Blondes
Highlights & Hair Color
Most colorists can put color on hair. What separates Kasthetix Beauty Salon is knowing exactly why a brunette turns brassy, why a copper goes flat, and why highlights lose dimension after two weeks — and how to prevent all of it. From subtle face-framing highlights to full dimensional transformations and color corrections, every service is built around one standard — color that feels expensive, grows out seamlessly, and works as hard as you do. Balayage, lived-in brunettes, grey coverage, single process color, copper and red specialists, and full transformations. All custom. All intentional. And all focused on the most important person in the chair — you.
Extensions
K-Tip & Hand Tied Beaded Sew In Weft Extensions
Whether you want more length, volume, or density — extensions done right transform everything. Most women have had extensions that slipped, tangled, or looked fake or frazzeled within weeks. That's an installation problem — not an extensions problem. At Kasthetix, every install is fully customized to your hair's texture, density, and lifestyle for a finish that's blended, lightweight, and long-lasting. Lightweight enough to forget you're wearing them. Natural enough that nobody else will know.
Styling & Cuts
A cut from your colorist changes everything. Most clients separate their color and cut appointments. At Kasthetix Beauty Salon, having both done by the same specialist means your cut is designed around your color — the shape enhances the dimension, the layers work with the grow-out, and the finish makes everything look stunning. From precision cuts to sleek blowouts and soft beach waves, every service is tailored to your face shape, lifestyle, and aesthetic. The full picture, done by one person who knows your hair completely.
About us
Kasthetix Beauty Salon is a private, luxury hair studio in Midtown Manhattan built for women who are done settling for color that fades, extensions that show, and stylists who don't listen or make time. Specializing in hair color and extensions — dimensional brunettes, natural coppers, rich reds and bright blondes — every appointment is one on one, fully customized, and held to one standard: results that look expensive and last. Located inside Sola Salon Suites on 34th Street. By appointment only.
Meet The Artist
Cassandra is the founder and lead artist behind Kasthetix Beauty Salon, a NYC-trained hair color and extensions specialist with a focus on dimensional brunettes, natural coppers, rich reds and bright blondes.
What sets Cassandra apart isn't just technical skill — it's how she listens. She has a natural ability to hear what a client is describing, translate it, and reflect it back in a way that makes them feel completely understood. That moment — when a client says "yes, exactly that," is what she lives for.
Cassandra refined her craft through a demanding NYC apprenticeship, launched her own independent artist business, and grew that into Kasthetix Beauty Salon. Building something from the ground up wasn't just a career move, it was a reflection of who she is. Driven, detail-obsessed, and never satisfied with just good enough.
Outside the salon she's working out, running, traveling, investing in real estate and reading — the same discipline and curiosity she brings to everything she does shows up in every client's hair.
One chair. One artist. Your hair, done right.
Talk To Us
Ready for hair that actually holds its value? Whether you have questions, want to book a consultation, or are ready to get started – we’re here. Reach out and let’s make it happen.