Navigate Peptide Therapy with Precision
Peptide calculator for reconstitution and dosing, research-backed guides to peptides and protocols, and everything you need for GLP-1 weight loss therapy.


What users are saying
4.9 on the App StoreFinally, an app that gets it
I've tried every peptide app out there and they're all either way too complicated or clearly made by someone who's never actually run a protocol. PeptideFox nails it — clean interface, accurate math, and it just works.
Clean UI, zero bloat
No ads, no upsells, no weird social features nobody asked for. It's a focused tool that does exactly what it says. The reconstitution calculator alone saves me time every single week.
The dosage calculator alone is worth it
I used to do all my reconstitution math by hand (or on some sketchy website). This app makes it foolproof. Punch in your vial size and BAC water volume and you're good to go. Accurate every time.
Reconstitution Calculator
Convert powder mass to concentration and injection volume
Reconstitution Guide
Step-by-step visual guide to mixing peptides safely
GLP-1 Comparison
Semaglutide vs tirzepatide vs retatrutide — side by side
GLP-1 Dosing
Simulate dosing schedules and titration pacing
Peptide Library
Browse 30+ peptide reference cards
Peptide Knowledge
Deep-dive articles on peptide protocols and research
SS-31, MOTS-c, and NAD+
Mitochondrial Peptides for Energy
GLOW & KLOW
Protocols for Anti-Aging & Skin Health
Wolverine Stack
BPC-157 + TB-500 Dosage & Protocol Guide
Retatrutide + NAD+
Improved Fat Loss Without the Energy Crash
Explore All Content
Learn about peptides through accessible, research-based content — mechanisms, benefits, protocols, and synergies
What you'll find on PeptideFox
Precision Tools
Reconstitution calculators, supply planners, and dosing schedules. No guesswork, just precise measurements based on your vials and goals.
Evidence-Backed Protocols
Pre-built protocols for healing and longevity. Each protocol includes dosing schedules, timelines, and safety considerations.
Research Library
Deep-dive articles on peptide mechanisms, stacking strategies, and clinical insights. Learn what the research says before you start.
For research and educational purposes only