Napoleon Perdis has run redeemable-on-product services for two decades. Now L'Occitane's Beauty Pods offer a $60 facial fully redeemable on skincare, and Beauty_Bar in Armadale starts at $25. If the service revenue is handed back, where does the profit come from? A worked breakdown of what the retailer earns on it, why the same offer costs an independent salon $43.70 every time it runs, plus the four versions of the mechanic that do transfer to the professional channel.