Have you ever considered retailing supplements or vitamin drinks in your spa? Although you must encourage clients to check with their physicians before adding any supplementation to their existing regimen, a great way to round out a vitamin-based spa treatment would be to offer vitamin-based topical skin care options in your retail area, as well as supplements and vitamin drinks for a refreshing whole-body pick-me-up, allowing spa clients who are focused on the power of vitamins to find extra ways to obtain their benefits outside the treatment room.