Before you apply any lace wig unit, you always want to protect your skin by using a scalp protector! The Scalp Protector serves as a barrier between your skin and the adhesives. Thereby, preventing or reducing skin irritation. It has also been reported to prolong hold time of adhesives. Dab directly to a clean hairline or wherever you will apply tape or liquid adhesives. Allow to dry completely. Those with sensitive skin or prone to irritation should repeat the step 2-3 times before application of adhesives.