Never before used Kevin.Murphy Scalp Spa Serum. Originally formulated to address his own needs as a renowned session stylist, Kevin Murphy’s eponymous line will give you supermodel strands in no time. Organically grown using ecologically sound harvesting techniques, every product — including the Scalp.SPA Serum — is created with the highest natural quality. Notorious for its unique lightweight formula across the entire range of products, you’ll find that the Scalp.SPA Serum is no exception to the rule... How to Use: Use as needed, part hair and apply to the areas of the scalp that need treating. May be used on damp or dry hair. Leave in.