I've ordered the sachets from both Alin and Advanced Stealth. I received my order from Alin but got the wrong merchandise. Problem was never resolved although I tried. Finally gave up. I received 1 of 8 packages shipped from Advanced and nothing else, no seizure letter (one year ago). After 5 months they resent even though they did not receive a seizure letter. This time the packages did arrive but they were empty with a seizure letter inside???? I've received seizure letters before. They come in an envelope from the government, not the original packaging the product was sent in.
Advanced Stealth is a selective scammer, order at your own risk. Check the other boards and you will see the same stories repeated.
FWIW, all of the sachets seem to be of good quality product.