Best Answer: Depends on how you store your soap too...if it 'sits' in its own slime (for lack of a better word) after you shower, that little bit of slurry will delude some of the soap each time and decrease the overall life by about 2-3 days or so. So i recommend keeping in in a dish with holes or slots to allow the water to drain off the soap between uses.
Having said that, these are large, man-bars of soap. Smell great, exfoliate a little bit too, and each one usually lasts me about 3-4 weeks. Sometimes I shower twice in a day depending on workouts.