By the Biro Hair Replacement team · Published October 23, 2026 · Last updated October 23, 2026
Short answer: To wash a hair system, detangle it gently, rinse it with lukewarm water, apply a mild sulphate-free shampoo with your fingertips, rinse well, add conditioner to the lengths (not the base), rinse again, pat dry and let it air dry on a stand. Never scrub, use hot water or rub it with a towel.
Washing is the most important part of hair system care. Done well, it keeps the hair soft, the base clean and the adhesive strong. Done badly, it tangles the hair, loosens knots and shortens the life of the system. This guide shows a simple, safe method, explains why each step matters, and helps you build a washing routine that fits your life.
We are Biro Hair Replacement, the online store of Biro Hair Studio in North York, Toronto. For the full routine, see our hair system care guide.
Why does washing a hair system matter?
Washing removes sweat, oil, dirt and product build-up that wear down the hair, the base and the bond. Your scalp produces oil, and a hair system sits right on it. Without washing, the hair gets dull and tangled, the base gets stained and the adhesive weakens. Washing is not harmful in itself. Rough or hot washing is what does damage. A gentle routine extends the life of your system. See how long a hair system lasts.
What do you need before you start?
You need a mild shampoo, a light conditioner, a wide-tooth comb or soft brush, a towel and a stand.
- Sulphate-free shampoo made for hair systems or sensitive hair.
- A light, silicone-friendly conditioner.
- A wide-tooth comb or soft brush.
- A clean towel.
- A head form or stand to dry the system.
- A suitable remover and wipes if you remove adhesive from the base.
How do you wash a hair system step by step?
Follow these eight steps in order.
- Remove the system safely. If it is attached, take it off using a proper remover. See how to attach and remove a hair system.
- Clean off residue. Remove leftover tape or adhesive from the base with a suitable remover, gently.
- Detangle first. Hold the hair near the base and brush from the ends upward.
- Rinse. Use lukewarm water and let it flow from the front to the back, in the direction of the hair.
- Shampoo. Apply a small amount of mild shampoo and work it in with your fingertips. Do not scrub.
- Rinse well. Make sure no shampoo remains.
- Condition. Apply conditioner to the lengths and ends, avoiding the base and knots. Leave for a few minutes and rinse.
- Dry. Pat with a towel and place on a stand to air dry.
Why does each step matter?
Why detangle before wetting?
Wet hair is weaker and tangles tighter. If you brush through knots after wetting, you pull on the knots in the base. Detangling dry, from the ends up, protects the knots.
Why lukewarm water?
Hot water dries the hair and softens adhesive residue and the base. Cold water does not clean well. Lukewarm is gentle and effective.
Why fingertips, not scrubbing?
Rubbing hair against itself creates tangles, and scrubbing the base pulls on knots. Pressing the shampoo through with your fingertips cleans without friction.
Why keep conditioner off the base?
Conditioner on the base and knots can leave residue that makes it harder to attach the system next time. Apply it to the lengths and ends where the hair needs moisture.
Which products should you use?
Use gentle, sulphate-free, alcohol-free products designed for delicate hair. A light conditioner keeps human hair soft. For synthetic hair, use products made for synthetic fibre. Avoid mixing many products. A simple routine of shampoo and conditioner is usually enough.
Which products should you avoid?
Avoid harsh shampoos, hot water, heavy oils, alcohol-based sprays and strong solvents on the hair.
| Avoid | Why |
|---|---|
| Hot water | Dries the hair and weakens the bond |
| Strong sulphate shampoo | Strips moisture and color |
| Heavy oils on the base | Loosen adhesive and attract dirt |
| Alcohol sprays | Dry the hair |
| Rough towel rubbing | Tangles and pulls knots |
| Hair dryer on high heat | Damages hair, especially synthetic |
Can you wash a hair system while it is still attached?
Yes, many people wash an attached system in the shower, using the same gentle method. Use lukewarm water, a small amount of shampoo, and fingertips only. Do not scrub the edges, where the bond is. Rinse thoroughly, apply conditioner to the lengths, rinse, and pat the edges dry with a clean towel. Wait before heavy styling. Do a full off-the-head wash when you remove the system for re-attachment.
How do you wash human hair and synthetic hair differently?
Human hair can handle a little more conditioning and warm styling. Synthetic hair needs fibre-safe products and very low heat. Human hair benefits from a regular conditioner and a leave-in product. Synthetic fibre holds its style, so avoid heat and avoid brushing it wet. See human hair vs. synthetic hair systems.
How often should you wash a hair system?
Wash it on a regular schedule, and also after heavy sweat, chlorine or salt water. How often depends on your lifestyle, climate and hair type. See showering, swimming and exercise and winter hair system care.
How should you dry and store it?
Air dry on a head form, then store in a breathable container away from sun and humidity. Avoid hanging by the hair or folding the base. If you are in a hurry, use a cool setting on a hair dryer and keep the dryer moving.
Common washing mistakes
- Scrubbing the base.
- Putting conditioner on the knots.
- Using hot water.
- Brushing from the roots when wet.
- Drying with high heat.
- Leaving adhesive residue on the base.
How to wash a hair system: frequently asked questions
How do I wash a hair system step by step?
Detangle, rinse with lukewarm water, shampoo gently, rinse, condition the lengths, pat dry and air dry on a stand.
Can I wash it while attached?
Yes, many people do. Use gentle products and avoid scrubbing the edges.
What shampoo is best?
A mild, sulphate-free shampoo.
Can I use a hair dryer?
Use cool or low heat only, or air dry.
How often should I wash?
On a regular schedule, and after heavy sweat, chlorine or salt water.
Does washing shorten the life?
Gentle washing helps. See how long a hair system lasts.
How do I remove adhesive residue from the base?
Use a suitable remover and wipes, gently. See hair system adhesives and tapes.
Can I dye or bleach my system?
Ask a professional first. See how to choose hair system color.
Ready to care for your system?
Browse the collection or contact us at +1 647 231 5266. See also hair system adhesives and tapes.
About the author: Written by the Biro Hair Replacement team, the online store of Biro Hair Studio in North York, Toronto.