16 of 18 people found the following review helpful
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This review is from: 100 Professional Ketone MISSION ketone test strip Urinalysis Urine strip tests
These worked fine for me. Changing as I come in and out of keto depending on waht I've been eating. However, I did leave them in the window for a few days and they now appear to be "broke" in some way. They are all quite dark and don't change colour, so be sure to keep them somewhere dark or at elast out of direct sun.