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How to detangle hair extensions
Wet the extensions.
If you try to detangle your extensions while they're dry, you may cause breakage and shedding. Wash the extensions with water and your usual shampoo, rinsing well to ensure that there are no suds left behind.
For extensions made of natural hair, use an alcohol-free, sulfate-free shampoo formulated for color-treated hair. For synthetic hair extensions, use a mild shampoo or one formulated for synthetic hair.