The Official
Clav Protocol.
Every Compound.
All The Data.
Clavicular's complete 5-layer peptide stack — Retatrutide triple-agonist for −28.7% body fat, BPC-157 gut protection, GHK-CU GLOW, SNAP-8 KLOW, and CJC-1295/Ipamorelin lean mass. Every compound documented. Research-grade sourcing.
GLP-3 R — Retatrutide
The engine of the stack. Hits all three receptors — the glucagon agonism is what separates it from tirzepatide. Phase 2 showed −28.7% at 48 weeks. The fat loss core.
BPC-157 — Gut Guardrail
GLP-1 agonists hit the gut hard. BPC-157 keeps it intact. 36+ preclinical studies, no minimum toxic dose found. The guardrail on an aggressive Retatrutide protocol.
GHK-CU — The GLOW Peptide
Upregulates 4,000+ skin biology genes. Collagen synthesis, VEGF angiogenesis, Cu-SOD antioxidant defense. When you lose 28% body weight, GHK-CU makes the skin show it well.
SNAP-8 — The KLOW Peptide
SNAP-25 N-terminal analog. Partially inhibits ACh at the NMJ — reducing expression muscle contraction force. Preclinical models: up to 63% wrinkle depth reduction.
CJC-1295 / Ipamorelin — Lean Mass
Pulsatile GH secretagogue combo. Preserves lean mass during aggressive Retatrutide fat loss. No cortisol elevation. Optional layer for those training hard.
The Science
Why Not Semaglutide.
Why Not Tirzepatide.
Why Retatrutide.
Semaglutide activates one receptor — GLP-1. It's the pioneer and the benchmark. Tirzepatide adds GIP and gained 5 percentage points. Retatrutide adds a third: glucagon receptor agonism, which directly increases hepatic energy expenditure.
That third receptor is the difference between pharmaceutical-grade weight loss and something that rewrites what your body is capable of losing. Phase 2 data: −28.7% at the high dose, 48 weeks. Retatrutide isn't the next iteration — it's a different category.
Weight Loss Comparison
Research-Grade Supply
Source the Stack
BPC-157 + TB-500 Blend 20mg
Buy BPC-157 + TB-500 Blend 20mg online — research-grade lyophilized peptide for laboratory use. Body Protection Compound-157 (15-amino-acid pentadecapeptide). ≥98% HPLC purity verified.
CAS: 137525-51-0
BPC-157 10mg
Buy BPC-157 10mg online — research-grade lyophilized peptide for laboratory use. Body Protection Compound-157 (15-amino-acid pentadecapeptide). ≥98% HPLC purity verified.
CAS: 137525-51-0
Epitalon 50mg
Buy Epitalon 50mg online — research-grade lyophilized peptide for laboratory use. Ala-Glu-Asp-Gly tetrapeptide. ≥98% HPLC purity verified.
CAS: 307297-39-8
GHK-Cu 50mg
Buy GHK-Cu 50mg online — research-grade lyophilized peptide for laboratory use. Glycyl-L-histidyl-L-lysine copper complex. ≥98% HPLC purity verified.
CAS: 49557-75-7
By Layer
Stack Layers
The Official Protocol. The Only Stack.
Build the Stack.
Run the Protocol.
Every compound in Clavicular's protocol in one place. HPLC verified, research grade, ships from the US.