Package content: 12 pieces of 15 gr in powder form in 1 airtight special foil protected vacuum bag. The product used externally is caused by bacteria. Your feet, which remain in shoes for a long time, cannot come into contact with the air, and bacteria grow along with sweating, causing the formation of unwanted bad odors. How to use foot odor blocker? Pour powdered biohelp into your shoes and wear these shoes for at least 6 hours. You can wear socks with your shoes that have shed Biohelp. You do not need to wash your feet before wearing the shoes you applied Biohelp to. Biohelp does not prevent sweating and breathing of the feet. It is suitable for external use. It does not harm your feet and shoes. It does not leave stains or marks on your socks. Everyone, men and women, can use it.