The Women's Ultimate Stax is the best supplement stack for building lean muscle.This stack contains Her Wurx Burner should be taken 30 minutes before breakfast. .Her Wurx Pre Workout with BCAA that can you taken before the gym along with Adapto Wurx. Amino Wurx can be taken during or after your workout and helps with recovery and hydration. Iso Wurx 100% isolate protein made with Prohydrolase® for your post workout. ProHydrolase®, when consumed with a whey protein supplement, encourages pre-digestion of the protein, allowing for the release of the full content of the essential amino acids for building muscle and improving muscle recovery.