Got mine from amazon too, but just get a small pot as they go off so quickly, particularly if you keep them in your bathroom (like where else would you keep pee sticks ) - then that one day you need some reassurance and it shows no purple and you panic... I can understand the need to see that you are there but a better indication is tracking your carb intake
do they go off? ive had mine for ages..
last time it was great as they started to show pink before I expected it and I was like whaaa? then the next morning I felt amazing! (but whoever said you feel great the whole time?!) starting LL (my first VLCD experience) it was like ketosis makes you feel loads better! hmm somewhat but not fully..