The transdermal patch is manufactured to FDA standards and has a patented technology that will be made known to the public when our "partner" is revealed in the coming weeks. The delivery system is optimal for fighting the inflammation caused by Covid-19. The vitamin D and CBD blends are all proprietary, can't be compared to Walgreens vitamin D. You can't patent Vitamin D but you sure can come up with the most effective delivery system and the best med combinations that are 100% clinically proven! Throw in a major marketing and distribution plan and it's game on!