Different effects with different suppliers

slowsixstang

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Has anyone experienced different effectiveness with different suppliers?
For background, I dipped my toes in with Tirz with peptide crafters and boy did it work even at 3mg. Got a kit of Nexaph T30, this particular batch was well tested from 1st, 2nd, and 3rd party testing. However, it seems like I am having to increase dose to get even close to what I felt before. Triple checked my dosing math and I'm pretty sure I'm correct on that part. There are a few reasons I can think of that may cause this:

1. The batch was a 5/13 release, I purchased at the end of June. I don't know their warehouse conditions but it may be degraded?
2. BAC water in the PC vial vs BAC saline in the Nexa vial. I like the 10ml bottles of the saline better, and had read it's fine for Tirz. I should really check pH to confirm.
3. Building a tolerance. This is most likely, I just didn't expect it to happen so suddenly.
4. Intra-batch variability. This is worst case, and least likely given the testing data, but curious to hear everyone else's experience.
5. Injection protocol. This last shot was pretty shallow, does depth matter?

Have you all experienced anything similar?
 

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