Although the Extract has a definite texture, you can still style your hair and go about your day. Some clients even like the volume it adds to their roots. It’s best to apply the Extract two hours after exercising, because sweat can cause it to run, minimizing its effectiveness. If you exercise after the Extract has already been in your hair for 6-8 hours, then you’re all set. Just wash with the Harklinikken shampoo after exercising.