As I've been searching for my source for my next gear I've been noticed a drastic difference in price. There are a couple of sites that I have used before that sell the same price 20-30$ that other sites sell for 90-100$? The sites that I have used before and have the lower prices carry peptides that are 97% purity or higher and are manufactured in the USA. So my question would be. . . . Why such a drastic difference in price?