How to Wash Your Hair Extensions with New Wash

How to Wash Your Hair Extensions with New Wash

By Wes Sharpton

Wondering if New Wash is safe for your extensions? Extension specialist Victoria Schrager breaks down exactly how to wash, rinse, and dry sew-ins, tape-ins, and wefts — and when to skip New Wash entirely.

Published on July 01, 2026 — 6 min read

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You've been sitting in this chair for close to four and a half hours at this point. You're starting to see length emerge, what an odd experience. Most of the time when we sit in the chair, we find ourselves watching length being removed. But you're in the reverse situation.

Many people have been here for whatever reason. It grew to a certain point, or they got a haircut that they really regretted and they wanted to add that length back. They never felt like it was this full or even sometimes it just grew to a certain point and then just suddenly stopped. There are many reasons why people opt for adding hair extensions into their lives.

The dread hits you.

Can I use New Wash? Is that right for this type of extension? Oh shit, how do I take care of this? Can I still use New Wash or I was thinking about New Wash, but is that going to be right for this?

There's so many instructions. There's so many things I have to do to take care of these in the right way.

I've been asked these questions for what feels like a million times, talking to hairstylists and clients so when I was booking clients with all that mane, I had to call in my expert friend with a specialty of doing hair extensions, Victoria Schrager. She knows the lowdown on washing extensions with New Wash. Here's the advice she's given me along the way, and here's what she had to say.

I've got some good and bad news for you. You can wash them with New Wash just like you wash your own hair. Sew-ins, we've got you. Bonded ones, we've also got you. Wefts we got you because New Wash doubles the length of wear from 6 months to a year. The biggest culprit for removing bonds is silicone, and New Wash is silicone-free, so don't worry.

Where things get a little interesting, and my honest opinion here is when we're dealing with adhesives. We're talking tape-ins or glue extensions. You must do a test strand. Not all adhesives are made the same, and the oils in New Wash can sometimes break that down. Those tape-ins and k-tips are much more prone to being slippery at the root, so don't use New Wash.

So a simple test will save you a world of hurt and pain. And money.

Before You Get In the Shower

Get a microfiber towel and line your attachment points with Pre-Wash. Detangling is key, so grab a wide-tooth comb, hair ties or clips, and of course, New Wash.

In the Shower

The method is the same as washing your own hair, but direction matters more here. Think of it less like washing and more like petting. Wet your hair thoroughly, apply New Wash from mid-length to ends first, then work toward the roots with long, gentle strokes from root to tip. Near the attachment points, press and squeeze rather than scrub. Be cautious with a scalp brush because sometimes you go a little too crazy. I'd avoid it and go in on both sides of your scalp with peace sign fingers and gently massage the attachment points.

Rinsing is where a lot of people get sloppy, and with extensions, that's where things go wrong. Tilt your hair back, let the water fall from root to end, and use your fingers to guide it out, especially on glue-ins. Residue near a bond is how you start losing that bond.

After the Shower

Out of the shower, the instinct is to rub. Resist it. Rubbing creates frizz and tangles at the bond points. Pat and squeeze downward with your microfiber towel. Then detangle from the ends up with a wide-tooth comb, working toward the roots. Hair ties and clips can work pretty well here for sectioning. They help your hair dry faster and get airflow around the attachment points, which matters more than people think.

A few things worth knowing before you get too comfortable. Brush from the bottom up, always. Never go to bed with wet extensions. Plus, you should never go to bed with wet hair anyway.

In general, it's good to know you should replace extensions every six to eight weeks, no longer than three months, except clip-ins, which can last just over a year. Also, brush at least twice a day, holding your attachment points while you work from ends to roots.

How often should you wash your hair?

That's a trick question. You can typically wash with New Wash as often as you'd like because it cleans without stripping, but your extensions can't receive your scalp's natural oils, so you should wash your hair 1-2 times a week. And when it comes to clip-in and halo extensions, they come out every night and can be washed once or twice a month. Too many clients have learned this the hard way: those extensions don't sleep in, unlike you.

So that's a routine, not a checklist. The small changes, like the direction you rinse and the way you dry, are just protecting your investment long term. The only thing that's really changing here is how you maintain your extensions. New Wash doesn't know the difference. It's still a one-step routine in the shower.

Keep Reading

The information in this article is for educational purposes only and is not intended as medical advice. Always consult a board-certified dermatologist or qualified healthcare provider if you have concerns about your hair or scalp health.

Frequently Asked Questions

  • Can I use New Wash on hair extensions?
    Yes, in most cases. You can wash sew-ins, bonded extensions, and wefts with New Wash the same way you wash your own hair. New Wash is silicone-free, and silicone is the biggest culprit behind bonds failing early, so it is actually gentler on extensions than many traditional shampoos.
  • Is New Wash safe for tape-in extensions or glue-ins?
    This is where you need to be careful. The oils in New Wash can sometimes break down certain adhesives, making tape-ins and k-tips more prone to slipping at the root. Since not all adhesives are made the same, you should always do a test strand on a small section before using New Wash on tape-in or glue extensions.
  • Does washing with New Wash affect how long extensions last?
    New Wash can actually extend wear time, roughly doubling it from about 6 months to a year for sew-ins, bonds, and wefts. Beyond the wash routine, most extensions should still be replaced every six to eight weeks and no later than three months, with clip-ins lasting just over a year since they are removed nightly.
  • How often should you wash hair extensions?
    You can technically use New Wash as often as you like since it cleans without stripping, but extensions do not receive the scalp's natural oils the way your own hair does. Because of that, it is best to wash extensions only 1 to 2 times a week. Clip-in and halo extensions, which come out nightly, only need washing once or twice a month.
  • What should I do before showering with extensions?
    Before getting in the shower, line your attachment points with Pre-Wash and have a microfiber towel ready. Detangle first using a wide-tooth comb along with hair ties or clips, then apply New Wash starting from mid-length to ends before working up toward the roots.
  • How should you wash extensions in the shower?
    Wet hair thoroughly, then apply New Wash from mid-length to ends first, using long, gentle strokes toward the roots rather than scrubbing. Near attachment points, press and squeeze instead of scrubbing, and use your fingers instead of a scalp brush to gently massage those areas. When rinsing, tilt your head back and let water flow from root to end, guiding it with your fingers, especially around glue-ins, since leftover residue near a bond can cause it to loosen.
  • How do you dry and detangle extensions after washing?
    Avoid rubbing hair with a towel, since that creates frizz and tangling at the bond points. Instead, pat and squeeze downward with a microfiber towel, then detangle from the ends up using a wide-tooth comb, working gradually toward the roots. Sectioning with hair ties or clips helps hair dry faster and improves airflow around attachment points. Extensions should never be left to dry overnight while wet.
  • Do I need a different hair care routine once I have extensions?
    Not really. New Wash still works as a one-step routine that replaces shampoo and conditioner. The main changes with extensions are the direction you rinse, washing less frequently, and how you dry and detangle, all aimed at protecting the bonds and attachment points rather than changing the product itself.

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