Keep your hair clean. Hair tangles when dirt and sweat build up, wash your hair after exercise, swimming etc. Brush your hair and remove all tangles before washing it. Wash your hair going in a downward motion. Use a good quality shampoo, your stylist can advise you what product is best for your hair. When lots of water is added at once to very dry hair, hair can swell up and tangle. Gradually wet the hair and brush gently before you completely wash it. This is more common with less expensive extension hair.

Keep the ends of your extensions moist with conditioner. This is important because your hair extensions will dry out, especially if you style them at all. The main difference between shampooing and conditioning your hair extensions is that you only need to run the conditioner through the ends of your extensions to get the best results. Otherwise, your hair extensions may become too greasy.

Invest in an extension brush. As you can probably guess, an extension brush is designed specifically for hair extensions. You use it the same way that you would use a normal brush, such as when you blow-dry your hair. When brushing, start at the ends of your hair and gently work your way up. Always brush in a downward motion. Do not brush harshly. Brush your hair 2 or 3 times a day. Heat is your one of your hair's biggest enemy, the more you use it, the shorter your hair extensions will last. Be careful with the use of blow-dryers and curling irons. It is best to let your hair dry naturally.

Wear a cap when swimming or keep your hair out of the water. Chlorine and salt water can cause the hair to tangle and mat up. It is recommended to wear your hair up or in a ponytail when you swim or exercise.

Never sleep on wet hair, make sure your hair is completely dry before you go to bed. It is also recommended to wrap your hair together or gently tie it up to prevent tangling.

Use a good (leave-in) conditioner to keep your hair soft. Don't over do it. To much conditioner or any other hair care product can cause a build up and tangling. Avoid hair products that contain alcohol. Alcohol makes hair dry. Ask your stylist what would be the best products for your hair.

Don't perm, color or any other chemical process to your own hair extensions without the help from a professional hair stylist.