Washing hair extensions correctly adds months to their lifespan. The principles are simple: use a sulphate-free shampoo, keep water running downward, detangle before you start, and never go to bed with wet extensions. It takes about five minutes longer than washing natural hair. Those five minutes are the difference between extensions that last six months and ones that look rough after eight weeks.
Below is the full step-by-step guide, whether you have nano bond extensions, weft extensions, or clip-ins.
In this guide
- How often should you wash hair extensions?
- What do you need before you start?
- Step-by-step: how to wash hair extensions
- How to dry hair extensions properly
- What products should you avoid on hair extensions?
- Can you wash clip-in hair extensions?
- Frequently asked questions
How often should you wash hair extensions?
Washing too often is one of the most common ways extensions get damaged before their time. For permanently fitted extensions such as nano bond or weft, washing 1 to 2 times per week is the right balance. Washing more frequently strips the hair of oils and can loosen bond attachment points over time.
Clip-in hair extensions should be washed every 15 to 20 wears rather than on a set weekly schedule. Because clip-ins are removed between uses, they do not collect oils at the same rate as permanently fitted extensions.
Curly or textured extensions may benefit from co-washing (conditioner only, no shampoo) between full wash days to maintain moisture without over-cleansing.
What do you need before you wash your hair extensions?
Before stepping into the shower, get everything ready:
- A sulphate-free, alcohol-free shampoo
- A hydrating, sulphate-free conditioner
- A wide-tooth comb or extension-safe detangling brush
- A soft microfibre towel
- A heat protectant spray (for blow-drying afterwards)
Products labelled for colour-treated hair are generally a safe choice for extensions, as they tend to use gentler formulas. Anything with sulphates, drying alcohols, or heavy silicones should stay out of your kit entirely.
100% Double Drawn Remy human hair. Heat-free, glue-free fitting. Ideal for fine, curly and textured hair.
Step-by-step: how to wash hair extensions
Step 1: Detangle before water touches your hair
This is non-negotiable. Work through your hair with a wide-tooth comb or detangling brush before you get in the shower, starting at the ends and working slowly up toward the roots. Wet knots are significantly harder to remove and cause breakage that shortens the life of your extensions.
Step 2: Wet thoroughly with lukewarm water
Use lukewarm water, not hot. Hot water lifts the cuticle layer of the hair shaft and accelerates dryness, fading, and tangling. Direct the water downward, following the natural direction the hair grows, to keep the cuticle smooth.
Step 3: Apply sulphate-free shampoo to roots and scalp only
Apply a small amount of shampoo to your roots and scalp. Work it through by gently squeezing the hair downward, as if you were wringing a cloth very gently. Do not scrub, twist, or pile the hair on top of your head. That creates knots that can take significant time to reverse and can put stress on the bonds.
Step 4: Rinse thoroughly
Rinse until the water runs completely clear. Product residue left in the hair causes build-up, weighs extensions down, and makes them look dull faster.
Step 5: Condition mid-lengths to ends only
Apply conditioner from the mid-lengths down to the tips, keeping it away from the bond or weft attachment points. Conditioner softens the bonds and can loosen attachments over time if applied directly to them. Leave for 2 to 3 minutes, then rinse well.
Step 6: Finish with a cool water rinse
A quick 30-second rinse in cool water helps seal the cuticle and adds noticeable shine.
How to dry hair extensions properly
This is where most people go wrong. Sleeping or going to bed with wet extensions puts enormous stress on the bond attachment points and is one of the fastest routes to matting and breakage.
After washing:
- Gently squeeze out excess water with a soft microfibre towel. Do not rub or twist.
- Apply a heat protectant spray from mid-lengths to ends before any heat styling.
- Blow-dry on a medium heat setting, working from root to tip in smooth downward passes.
- Finish on the cool setting to lock the cuticle in place.
For curly extensions, use a diffuser attachment on a low heat setting to maintain the curl pattern. Directing high-velocity heat at curly extensions without a diffuser will stretch out the curl and cause frizz that is difficult to reverse.
If you prefer to air dry, that is fine, but allow enough time to be fully dry before you sleep. Going to bed with extensions still damp is a reliable way to create matting overnight.
100% Double Drawn Remy human hair. Versatile fit, compatible with sew-in, braid or microbead methods.
What products should you avoid on hair extensions?
Three categories cause the most damage:
Sulphates (sodium lauryl sulphate, sodium laureth sulphate): These strip moisture from the hair fibre rapidly. Extensions cannot replace lost moisture the way natural hair does, because they are not connected to a scalp. Once sulphates have dried out the hair shaft, the texture changes permanently.
Drying alcohols (ethanol, isopropyl alcohol, SD alcohol): These dehydrate the hair shaft and are found in many styling sprays and dry shampoos. Fatty alcohols such as cetearyl alcohol are fine and are often used in conditioners.
Heavy silicones (dimethicone, cyclopentasiloxane): These coat the hair and create temporary softness, but build up over time, weigh extensions down, and reduce curl definition.
A simple test: if a product would be recommended for fine or colour-treated hair, it is almost certainly safe for extensions.
Can you wash clip-in hair extensions?
Yes, and you should, but far less frequently than permanently fitted extensions.
- Detangle thoroughly before washing.
- Fill a basin with lukewarm water and a small amount of sulphate-free shampoo.
- Submerge and gently work the shampoo through by squeezing the hair downward. Do not scrub.
- Rinse thoroughly under running lukewarm water.
- Apply conditioner to mid-lengths and ends. Leave for 2 minutes, then rinse in cool water.
- Lay flat on a clean towel and allow to air dry fully before storing.
Never tumble dry clip-in extensions, and avoid hanging them to dry while wet.
100% Double Drawn Remy human hair. Damage-free styling, in and out in minutes. 60+ shades for a perfect colour match.
Want to know how long extensions last with the right care? Read our full guide: How Long Do Hair Extensions Last?
Frequently asked questions
Can you wash hair extensions every day?
No. Daily washing strips moisture from the hair fibre that extensions cannot replace naturally, and frequent wetting puts stress on bond attachment points. Aim for 1 to 2 times per week for permanently fitted extensions and every 15 to 20 wears for clip-ins.
What is the best shampoo for hair extensions?
A sulphate-free shampoo formulated for colour-treated or fine hair is the best choice. These are gentler on both the hair fibre and bond attachment points. Avoid anything with sodium lauryl sulphate, sodium laureth sulphate, or high concentrations of alcohol near the top of the ingredient list.
Should you condition hair extensions?
Yes. Conditioning mid-lengths to ends is important because extensions cannot produce their own moisture. Apply conditioner from the mid-shaft down to the tips only, keeping it away from the bond or weft attachment points to avoid loosening them.
How do you detangle hair extensions after washing?
Work through extensions when they are dry, not wet, to minimise breakage. Start at the ends and work slowly upward with a wide-tooth comb or extension-safe brush. Hold the hair above any knot to prevent tension pulling on the bonds while you work through it.
Can you go swimming with hair extensions?
You can, but chlorine and salt water both dry out the hair fibre quickly. Put your hair in a loose braid before swimming, rinse with fresh water immediately after, and wash and condition as soon as possible. Avoid prolonged submersion around bond attachment points.
Can you use dry shampoo on hair extensions?
Yes, but use it at the roots only and avoid the bond attachment points. Brush it through thoroughly before it sets, and do not let it build up over multiple days as product build-up near bonds can weaken them over time.
Ready to invest in extensions that actually last?
WAVE extensions are crafted from 100% Double Drawn Remy human hair across 60 shades. Built to last up to 9 months with the right care.
Shop Hair Extensions →Free colour matching guide included with every order.
