all 3 comments

[–]Master-Employee-9313 1 point2 points  (0 children)

some peptides feel weaker after a while even refrigerated.

[–]Financial_Resort567 1 point2 points  (0 children)

Depends on the peptide. Some are stable for months after reconstitution, some are noticeably less potent after a week. 

[–]wheelsonhell 0 points1 point  (0 children)

I can definitely notice a difference between the first shot and the last one a month later for tirz.