Where it's at: Cole Stevens Salon & Day Spa in Washington, D.C.

Owners: Diane Cole Stevens

Description: A facial for the scalp, which exfoliates and removes fatty acids, sebum and other dead skin cells.

Price: $50

Length of service: 15 minutes

Who performs it: Stylists

Products/tools needed: Nioxin Scalp Renew, Nioxin 3-part system recommended for clients’ hair type, gloves, rattail comb

How it’s marketed: word of mouth, consultations, tweets, Facebook

Average sold per month: 50