If you live in New York City, you already know what humidity does to your hair. The moment you step outside in spring or summer, the frizz starts. That is where keratin treatment NYC appointments have become one of the most requested services in salons across Manhattan and Brooklyn.
But keratin is one of those treatments that gets a lot of questions — and a lot of misinformation. Here is a clear, honest breakdown of everything you need to know before you book.
What Is a Keratin Treatment?
Keratin is a protein that naturally occurs in your hair. Heat, chemical processing, sun exposure, and everyday styling all break down your hair’s keratin over time, leaving it dry, frizzy, and harder to manage.
A keratin treatment is a professional smoothing service that infuses the hair with a keratin-based formula, then seals it in with heat. The result is smoother, shinier, more manageable hair that resists humidity and frizz for weeks or months at a time.
It is not a relaxer. It does not permanently straighten your hair. It works with your natural texture to enhance it — reducing frizz, adding shine, and dramatically cutting down your styling time.
How Does a Keratin Treatment Work?
The process typically takes between two and four hours depending on your hair length and thickness. Here is what to expect:
Your stylist will start by washing your hair to remove any product buildup. The keratin formula is then applied section by section, saturating each strand. Once the formula is applied, your hair is blow dried and then sealed with a flat iron at high heat. The heat bonds the keratin to the hair shaft, locking in the smoothing effect.
After the treatment, most formulas require you to keep your hair dry and avoid washing, tying, or pinning it for 24 to 72 hours while the keratin fully sets.
How Long Does a Keratin Treatment Last?
Most keratin treatments last between 3 and 5 months depending on your hair type, how often you wash your hair, and the products you use. Coarser, thicker hair may see results that fade faster. Fine hair tends to hold the treatment longer.
Using a sulfate-free shampoo after your treatment is essential — sulfates strip the keratin out of your hair much faster and will significantly shorten how long your results last.
Who Is a Keratin Treatment For?
Keratin treatments work best for clients who:
- Have naturally frizzy, wavy, or curly hair they want to manage more easily
- Spend a lot of time blow drying or flat ironing and want to cut that time down
- Live in a humid climate and struggle with frizz and flyaways
- Have chemically processed or color-treated hair that feels dry and rough
- Want smoother, shinier hair without permanently changing their texture
Keratin is not ideal for clients with very fine or limp hair — the added weight can make hair look flat. It is also not recommended during pregnancy due to the chemicals involved in some formulas.
Are All Keratin Treatments the Same?
No — and this is one of the most important things to understand before you book.
There are several types of keratin treatments on the market, ranging from gentle, formaldehyde-free smoothing treatments to stronger Brazilian blowouts that contain higher levels of chemicals. The difference matters both for your health and your results.
Some key things to ask your stylist before booking:
- Is the formula formaldehyde-free?
- How much straightening versus smoothing will this give me?
- Will this affect my color?
- What maintenance does this require?
A good stylist will answer all of these honestly and help you choose the right formula for your hair type and lifestyle.
Keratin and Color — What You Need to Know
If you have color-treated hair, timing your keratin treatment correctly matters. Keratin treatments can slightly alter tones — particularly on blonde or highlighted hair — because the heat sealing process can shift color.
The general recommendation is to get your color done first, wait at least two weeks, and then book your keratin treatment. This gives your color time to settle and ensures the keratin does not interfere with your results.
If you are planning both services, talk to your colorist first. A good stylist will help you sequence your appointments correctly so you get the best results from both.
How to Maintain Your Keratin Treatment
Getting the most out of your keratin treatment comes down to a few simple rules:
Use a sulfate-free shampoo — this is non-negotiable. Sulfates are the number one reason keratin treatments fade early.
Wash your hair less frequently — the more you wash, the faster the treatment breaks down. Two to three times per week is ideal.
Avoid chlorine and saltwater — both strip keratin quickly. If you swim, wear a cap or rinse your hair immediately after.
Use a silk pillowcase — friction from cotton pillowcases causes frizz and can shorten your results.
Avoid heavy oils or butters on the scalp — these can weigh the hair down and affect how the treatment sits.
Is It Time for Your Keratin Treatment NYC Appointment?
Yes — and NYC residents know exactly why. Late spring and summer bring the humidity that makes frizzy hair nearly unmanageable. Most colorists and stylists see a significant uptick in keratin treatment bookings from April through August for exactly this reason.
If you are thinking about booking a keratin treatment, now is the right time. Getting it done before the humidity peaks means you go into the warmer months with smooth, manageable hair that holds up regardless of the weather.
Book a Keratin Consultation at Color And Andy
At Color And Andy, every service starts with a real conversation. If you are considering a keratin treatment in NYC and want to understand which formula is right for your hair type, texture, and lifestyle, Andrea is happy to walk you through your options before you commit to anything.
Color And Andy is located at 263 Bowery, 2nd Floor in Lower Manhattan — one block from the F train and two blocks from the J/Z.
Book a consultation or book a service today and go into summer with the hair you actually want.
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