PepVault research

Guides

Plain answers to the questions people ask about peptides and GLP-1s. Each guide opens with the answer, cites its primary sources and shows when it was last checked against them.

How we research

Getting started

Mixing, injecting and storing.

How to reconstitute tirzepatideHow much bacteriostatic water to add to a tirzepatide vial, how to mix it, how to draw a dose in insulin-syringe units, and how to store it.Last reviewed October 12, 2026 · 8 sources

GLP-1s

Week by week, side effects, titration and switching.

Retatrutide week by weekWhat to expect on retatrutide week by week: the trial dose steps, when appetite drops, weight loss at weeks 24, 48 and 80, and how side effects settle.Last reviewed October 12, 2026 · 10 sources

Recovery

BPC-157, TB-500 and the healing peptides.

BPC-157: the human data we haveEvery published human study of BPC-157: the knee pain, bladder pain and IV safety pilots, what each found, the trials now registered, and how it works.Last reviewed October 12, 2026 · 20 sources

Stacks

What goes with what, on one page.

What to take alongside each peptideWhat to pair with each peptide, and why: glycine and vitamin C for repair, less zinc on GHK-Cu, fasting and sleep for GH peptides, protein on GLP-1s.Last reviewed October 15, 2026 · 19 sources

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