pepdex
Stack essential · Synergy

Creatine Monohydrate

Muscle-preservation insurance during GLP-1-driven weight loss.

What it is

The most-studied performance/muscle supplement on the market. Increases ATP availability for short-burst work; pulls water into muscle cells (mild bloat); modestly reduces muscle catabolism during deficits.

Why peptide users take it

GLP-1 weight loss is ~25% lean mass without intervention — that's not just fat. Creatine + resistance training is the most evidence-backed defense against muscle loss during a deficit. Especially important for older users on tirzepatide/retatrutide.

Pairs with these peptides

How it actually works

Members only

Dose

Members only

When to take

Members only

Signs you actually need this

Members only

Signs it's working

Members only

Common mistakes

Members only

Where to buy

Product picks coming back soon. We're re-verifying every product link against current Amazon listings to make sure no broken or stale ASINs slip through. The brand recommendations below are unchanged — same quality bar (USP / NSF / third-party COA where possible).
  • ThorneCreatine 16 oz powder
  • Bulk SupplementsPure Micronized Creatine

Caveats

  • Causes 1–3 lb water-weight gain in week 1. Don't panic — that's intramuscular.
  • Stay extra hydrated; creatine pulls water into cells.

Unlock the rest on this peptide

Members get the full mechanism, dose protocols, side effects, contraindications, common mistakes, drug interactions, and the Pepdex hot take — on every entry.

  • Mechanism
  • Dose protocols
  • Side effects
  • Drug interactions
  • Common mistakes
  • The Pepdex take
  • Members-only Sources page — community-curated reference for research-grade material
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Also worth knowing: if you're injecting peptides alongside this stack, the injection-supplies page covers syringes, pads, sharps, and vial storage in the same quality-first format. Browse supplies →
Educational reference only. Not medical advice. Talk to a doctor before starting any supplement, especially if you take prescription medications or have an underlying condition.