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/ comparison

GHK-Cu
vs
BPC-157

Side-by-side comparison of mechanism, research, dosing, side effects, and pricing.

peptide

GHK-Cu

Natural copper complex first isolated in 1973. Extensively studied for skin, hair, and collagen applications.

Cheapest
$18.22
50mg at Lab Sourced
See GHK-Cu →
peptide

BPC-157

Pentadecapeptide derived from gastric juice protein. Extensively researched for tissue repair.

Cheapest
$24.98
5mg at Omegamino
See BPC-157 →
/ research scoring

Research base

GHK-Cu
Research Maturity★★★★☆
Evidence Strength★★★★☆

150+ studies. Strong evidence for collagen synthesis and wound healing. Hair follicle research expanding.

BPC-157
Research Maturity★★★★★
Evidence Strength★★★★☆

200+ peer-reviewed studies. Strong animal models for tendon/ligament repair, GI healing, wound closure. Promising case reports.

/ mechanism

How they work

GHK-Cu

Upregulates collagen I, III, IV synthesis. Inhibits matrix metalloproteinase (MMP). Promotes tissue remodeling.

BPC-157

Upregulates HGF (hepatocyte growth factor) and FGF signaling. Increases fibroblast proliferation and migration. Promotes angiogenesis.

/ research dosing

Protocols compared

GHK-Cu
Range: 1-2 mg/day (subQ) or 1-3% topical concentration
Frequency: Daily for skin/systemic; 3-5x/week for cycles
Route: Subcutaneous before bed, or topical applied to clean skin
Some protocols use 4-6 week cycles followed by 2-4 week breaks. Topical 1-3% solution typical for skin research. Reconstitute with bacteriostatic water, never freeze reconstituted. Loren Pickart's original research used 0.1-3mg subcutaneous.
BPC-157
Range: 250-500 mcg/day (most common: 500 mcg/day split AM/PM)
Frequency: Daily, often split 250mcg AM + 250mcg PM
Route: Subcutaneous (subQ) near injury site; oral viable for gut research
Research literature scales from 10mcg/kg in animal models. Subcutaneous injection near injury site shows higher local effect. For gut/GI research, oral dosing is stable due to gastric acid resistance. Huberman protocol cites 300-500 mcg, 2-3x weekly for 8 weeks.
/ side effects & timeline

What to expect

GHK-Cu
Side effects

Topical: minimal. Systemic: occasional mild blue discoloration at injection site.

Timeline

4-12 weeks for skin/hair effects

BPC-157
Side effects

Generally well-tolerated. Rare reports of mild GI discomfort at high doses.

Timeline

Effects typically observed 4-8 weeks in research models

/ pricing

Price comparison

GHK-Cu
Lowest price$18.22 (50mg)
Min $/mg$0.22/mg
Avg $/mg$0.49/mg
Max $/mg$0.81/mg
BPC-157
Lowest price$24.98 (5mg)
Min $/mg$3.17/mg
Avg $/mg$5.89/mg
Max $/mg$10.12/mg
/ which to pick

The honest verdict

Pick GHK-Cu if: Excellent standalone compound. Strong solo research for skin and collagen.

Pick BPC-157 if: Strong standalone compound. Research-backed for tissue and tendon repair as a single agent.

Why not both? Some researchers run them together. Check our Interaction Matrix to see if these compounds synergize or work independently.

FOR RESEARCH USE ONLY. Both compounds are intended for laboratory research and not for human consumption.