You can comb, style, and even run your hands through your hair after applying the Hair Fibers! It is not necessary to apply the FiberHold Spray after applying the Hair Fibers, but we do recommend it as it helps to strengthen the bond between the Hair Fibers and your hair. As far as sweating goes, our Hair Fibers resist wind, rain and perspiration - the only time we would not recommend wearing the Hair Fibers is if you are going into a steam room or doing a hot Yoga class. Please let me know if you have any more questions!
-Toppik Customer Service
Date published: 2014-11-30