We at Nano Nutrients are confident in the quality of our products as they get produced under manufacturing protocols that are in line with international GMP standards. If something was wrong with your product, you have 30 days to report it and send it back to us. All you have to do is contact us via our ticket system in the SUPPORT section of your account by referencing the order number and stating your comments, or by adding a picture of what is wrong with your product.