We do the diligence.
Your body already knows how to heal, perform, and transform. We give it the tools.
Research peptides. Complete protocols. Shipped worldwide.
🔬 Every batch CoA-tested — see exactly how it's made & tested →
Trusted by researchers in 23 countries
The problem with buying peptides retail
Single vials cost $35-50 each. A full protocol costs $350+ buying one at a time.
Nobody tells you how many you need. You guess, run out mid-cycle, and restart from zero.
No guidance. No reconstitution info. No protocol support. You're on your own.
How Caliber works
Choose your goal
Weight loss, recovery, longevity, performance — browse by what you want to achieve.
Get your complete protocol
Every order is a full-cycle protocol box. 10 vials, 3-12 months supply. Nothing to calculate.
We ship worldwide
Direct from source to your door. Discreet packaging. Bitcoin, ETH, or bank transfer. 7-14 days.
How ordering works
⚡ Weight Loss
The GLP-1 revolution changed everything. Here's the full range.
Semaglutide
Full Year Protocol
The compound behind Ozempic and Wegovy. Phase 3 trials: 12-15% body weight loss. Most customers never need to reorder.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
Tirzepatide
Dual-Action Protocol
Works on two pathways — GLP-1 and GIP. 20% weight reduction vs 12% on Semaglutide. The compound behind Mounjaro.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
Retatrutide
Triple-Action Protocol
Triple-hormone agonist. Phase 2 trials: 24% body mass reduction. Not on prescription yet. Available here.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
Also in this category
💉 Recovery & Repair
You train hard. The question is whether you recover hard.
BPC-157
3-Month Healing Protocol
Accelerates healing in tendons, ligaments, muscle, gut. 3.5 months at standard dosing.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
TB-500
12-Week Recovery Cycle
Cell migration + blood vessel formation. 4 weeks loading + 8 weeks maintenance.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
Wolverine Stack
BPC-157 + TB-500
Different repair mechanisms, pre-blended.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
GLOW
Triple Healing Stack
The ultimate healing blend. BPC-157 for local tissue repair, GHK-Cu for collagen remodeling, and TB-500 for systemic recovery — pre-blended in one vial. Three mechanisms, one injection.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
KLOW
Premium Healing + Anti-Inflammatory
GLOW's triple healing stack plus KPV — a powerful anti-inflammatory peptide. Four mechanisms in one vial: repair, remodel, recover, and reduce inflammation.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
Also in this category
🧬 Longevity & Anti-Aging
Not about living longer. About living better — for longer.
Epithalon
Longevity Protocol
Reactivates telomerase. Discovered in human pineal gland. 100x more potent than melatonin.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
Thymosin Alpha-1
Immune Protocol
Thymus peptide for immune function. Clinically used in 35+ countries.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
NAD+
Energy Protocol
NAD+ declines 50% by your 60s. Injectable bypasses oral conversion losses.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
Also in this category
✨ Skin & Appearance
Collagen. Elasticity. The compounds that work from the inside out.
GHK-Cu
Skin Renewal
Copper peptide, stimulates collagen, works systemically.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
Melanotan II
Tan & Libido
Melanin production — deeper tan without UV. Libido boost secondary.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
SNAP-8
Needle-Free Line Smoothing
Topical octapeptide that softens expression lines by easing the micro-contractions behind them — a needle-free alternative explored in cosmetic research.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
Also in this category
💪 Performance & Growth
Lean muscle. Better sleep. The GH stack that works with your body's rhythm.
CJC-1295 + Ipamorelin
GH Stack
Natural GH release rhythm. Better sleep, lean muscle, fat loss.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
HGH 191AA
Growth Hormone
Direct GH supplementation, direct from source.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
Sermorelin
Anti-Aging GH
GH releasing hormone analogue. Anti-aging clinic favourite.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
🔥 Sexual Health
PT-141 works on the brain, not blood flow. That's why it works when everything else doesn't.
PT-141
Sexual Health Protocol
Brain arousal pathways. Works men + women. Works when psychological.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
🧠 Cognitive & Sleep
Focus. Calm. Deep sleep. Without stimulants or sedatives.
Selank
Calm Focus
Anti-anxiety without sedation. Focus + stress resilience.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
DSIP
Deep Sleep
Delta-wave sleep, not drowsiness. Melatonin is a flashlight. DSIP is a dimmer switch.
You'll also need: BAC water and insulin syringes for reconstitution.
Complete Your Protocol
Also in this category
💧 Essentials
Everything you need to get started.
Bacteriostatic Water
Essential for Reconstitution
10ml × 10 vials
Required for reconstituting all injectable peptides. Pharmaceutical grade. 10 vials for $20 — enough for your entire protocol.
Caliber vs. Retail
Same compounds. Full protocol boxes. Direct from source.
| Compound | Retail (10 vials) | Caliber (10 vials) | You Save |
|---|---|---|---|
| Semaglutide 5mgPopular | $450+ | $210 | 53%+ |
| Tirzepatide 5mgPopular | $480+ | $210 | 56%+ |
| Retatrutide 5mg | $560+ | $280 | 50%+ |
| BPC-157 5mgPopular | $380+ | $245 | 35%+ |
| TB-500 5mg | $490+ | $345 | 30%+ |
| Epithalon 10mg | $400+ | $230 | 42%+ |
Retail prices based on published rates from major peptide vendors (2026). All prices in USD.
What's in every Protocol Box
Protocols from $195 — as low as $0.45/day
Browse All Protocols →Why people trust Caliber
CoA on every batch
Every order ships with a Certificate of Analysis for its batch — HPLC purity and mass-spec identity. We show the process, not a sticker.
Active Telegram community
Real people. Real protocols. Ask questions, get support from the community and from us directly.
Join the group →63-page Peptide Bible
25+ compounds. Dosing protocols. Reconstitution guides. Free with every order.
Download free →Quality & Safety
Quality isn't a badge. It's a process you can check.
Most sites show you a “99% pure” sticker and ask you to trust it. We show you the work — where it comes from, how it's made, and how every batch is tested. Including what testing does, and doesn't, prove.
Facility, water and sterility controls checked before we sourced a vial.
GMP Grade A aseptic filling and Water-For-Injection standard.
HPLC purity and mass-spec identity — request yours anytime.
Who's behind Caliber?
We're researchers and biohackers who got tired of paying 3-4x markup for compounds we could source directly. So we cut out the middlemen.
Our source is an established manufacturer that supplies the wider research-compound market — vetted by us before we sourced a vial. Every batch ships with its Certificate of Analysis. We sell in protocol boxes at source pricing.
Every compound we sell, we've researched ourselves. Every protocol in the Peptide Bible, we've run or reviewed. This isn't a dropshipping operation — it's a community.
Message us on Telegram — we reply personally →The Caliber Guarantee
Your protocol arrives sealed, tested, and exactly as described — or we replace it. No questions asked.
We trust our source enough to guarantee every order. Worldwide.
⚠️ Peptide reclassification update
The FDA is moving 14 compounds including Semaglutide to Category 1 in 2026. When that happens, research-grade pricing disappears.
Current stock ships within 48 hours of payment confirmation. Worldwide.
Your protocol is waiting.
Complete cycle. Direct from source. Guaranteed quality. Shipped worldwide. From $0.45/day.
Featured Protocols
Our most popular compounds. All prices in USD. Every box is 10 vials.
| Product | Spec | Price (USD) | Protocol | Action |
|---|---|---|---|---|
BPC-157Bestseller 3-Month Healing Protocol | 5mg × 10 vials | $245 $2.40/day | 3.5 months | |
CJC-1295 + Ipamorelin GH Stack | 5mg+5mg × 10 vials | $445 $1.82/day | 8 months | |
DSIP Deep Sleep | 5mg × 10 vials | $245 $0.67/day | 12 months | |
Epithalon Longevity Protocol | 10mg × 10 vials | $230 $0.63/day | 12 months | |
GHK-Cu Skin Renewal | 50mg × 10 vials | $195 $0.53/day | 12 months | |
GLOW Triple Healing Stack | 70mg (BPC+GHK-Cu+TB) × 10 vials | $805 $4.79/day | 6 months | |
HGH 191AA Growth Hormone | 10iu × 10 vials | $230 $0.63/day | 12 months | |
KLOW Premium Healing + Anti-Inflammatory | 75mg (BPC+GHK-Cu+TB+KPV) × 10 vials | $900 $5.36/day | 6 months | |
Melanotan II Tan & Libido | 10mg × 10 vials | $260 $0.71/day | 12 months | |
NAD+ Energy Protocol | 500mg × 10 vials | $295 $0.81/day | 12 months | |
PT-141 Sexual Health Protocol | 10mg × 10 vials | $310 $0.85/day | 3-6 months | |
Retatrutide Triple-Action Protocol | 5mg × 10 vials | $280 $0.77/day | 12 months | |
Selank Calm Focus | 5mg × 10 vials | $260 $0.71/day | 8 months | |
SemaglutideMost Popular Full Year Protocol | 5mg × 10 vials | $210 $0.58/day | 12 months | |
Sermorelin Anti-Aging GH | 5mg × 10 vials | $345 $0.95/day | 12 months | |
SNAP-8 Needle-Free Line Smoothing | 10mg × 10 vials | $210 $21/vial | Topical | |
TB-500 12-Week Recovery Cycle | 5mg × 10 vials | $345 $4.11/day | 12 weeks | |
Thymosin Alpha-1 Immune Protocol | 5mg × 10 vials | $330 $0.90/day | 12 months | |
TirzepatideBestseller Dual-Action Protocol | 5mg × 10 vials | $210 $0.58/day | 12 months | |
Wolverine Stack BPC-157 + TB-500 | 5mg+5mg × 10 vials | $375 $4.46/day | 12 weeks |
Full Catalogue
Everything we stock. 60+ compounds across all categories. Click any size to add to cart.
70 compounds — priced per vial, sold as 10-vial boxes