Paul Mitchell Tea Tree Scalp Care Regeniplex Shampoo 1LShampoo for thinning hair gently cleanses the scalp and helps strands look and feel fuller. Helps Hair Look Fuller. Gently cleanse the scalp and help hair look and feel fuller. This color safe shampoo features the exclusive Regeniplex botanical blend of Kakadu plum, pea peptides, clover flower, turmeric and ginseng to revitalize the scalp and help hair look thicker and fuller. Please Note: Product packaging may vary as we migrate to new packaging