What Is the Clavicular Peptide Stack? Every Compound Explained

What Is the Clavicular Peptide Stack?

The Clavicular peptide stack is a research compound protocol popularized by Clavicular — a social media figure known for documenting extreme body recomposition using research peptides. The stack gained viral attention for two reasons: the clinical data behind its core compound (Retatrutide, -28.7% body weight in Phase 2) and Clavicular's systematic, documented approach to stacking compounds for multiple concurrent effects.

The Core Philosophy

The Clav stack is built on a layered approach:

• Maximum fat loss via the most potent GLP compound available
• GI protection because aggressive GLP protocols are hard on the gut
• Skin quality maintenance because extreme leanness exposes skin quality
• Advanced aesthetics for facial and skin optimization

Compound 1: Retatrutide (GLP-3 R)

Retatrutide is a triple GLP-1/GIP/Glucagon receptor agonist — the most potent GLP compound in clinical research. The glucagon receptor addition drives direct hepatic fat oxidation and brown adipose thermogenesis, adding a third fat-burning mechanism beyond appetite suppression.

Phase 2 data at 8mg/week over 48 weeks: −28.7% body weight. Nothing else in the GLP class comes close.

Compound 2: BPC-157

BPC-157 is a 15-amino acid peptide derived from gastric juice. Clavicular runs it specifically to counteract the GI side effects of Retatrutide — nausea, altered gut motility, and GI stress during dose escalation. 36+ preclinical studies support its gastroprotective mechanism.

Compound 3: GHK-CU (GLOW)

When you lose 28% of your body weight, your skin has to adapt to a new frame. GHK-CU upregulates 4,000+ genes involved in collagen synthesis and skin remodeling. Clavicular calls it the GLOW protocol — it's the aesthetic layer that makes extreme leanness look impressive rather than aged.

Compound 4: SNAP-8 (KLOW)

The advanced skin layer. SNAP-8 inhibits SNARE complex signaling at the NMJ, reducing expression muscle contraction force. Preclinical models show up to 63% wrinkle depth reduction.

Is the Clav Stack Real?

All compounds in the stack have legitimate preclinical research behind them. Retatrutide has Phase 2 human clinical data. The stack is built on published research, not anecdote — which is why it attracted attention beyond typical looksmaxxing communities.

All products are for research purposes only. Not intended for human use.