Here's the link to purchase the shirt: www.ageofmajority.com/shop/#!/muck+the+fillennials+navy+text+design-A5df8059ff9376451e01bd3e2?productType=1130&sellable=2LlbVl7b47TNd2plrrna-1130-7&appearance=1
Instructions say 4 weeks. Daily use. Then 2 times a week top-up. I was after beard and got some cheap instead of dying, I didn't really know what it was but knew the brand name.