eCosmetics is an authorized retailer of Barriere. This pack includes 36 vitamin mini patches in your daily dose of Vitamin D3 and K2. Patches are made in clear recyclable PET with black sun symbol. Each patch delivers vitamins trans dermally through the skin and directly into the bloodstream for increased absorption compared to pills. The sustained release of ingredients takes place over 8-12 hours, and each patch offers instant benefits and results. Just one patch a day is sufficient to deliver vitamins you are looking for without any fillers or questionable ingredients.