If you are a medical professional you can order a FREE Sample of THERA, McKesson’s Advanced Skin Care product line provides a comprehensive solution for sensitive and compromised skin, intended for use in Clinical and Home Care settings. Each product in the THERA Advanced Skin Care line works together to cleanse, moisturize, protects and treat skin irritations, and is enriched with an all-in-one proprietary blend of nourishing vitamins and minerals, called SAFFLEX. Samples not available in MN and VT.