thanks, i was worried they had lost potency. going into 2nd week at 100 mg per day while waiting for other supplies. i am not seeing gains or water retention. it was kind of the manufacturer to print the mfg date on the bottle, but i thought all meds had an exp date printed on the bottle as well. i hate to add in the test and deca without knowing if these tabs are bogus... they are very solid and taste bitter.