GHK-Cu vs Dulaglutide
Side-by-side comparison of key properties, dosing, and research.
Skin & CosmeticRecovery & RepairAnti-Aging & Longevity
GHK-CuGLP-1 / Weight Loss Agonists
Dulaglutide- Summary
- GHK-Cu is a naturally occurring copper complex that declines with age. It is one of the most studied anti-aging peptides, known for powerful skin rejuvenation, wound healing, and tissue remodeling effects.
- Dulaglutide (brand name Trulicity) is a once-weekly GLP-1 receptor agonist approved by the FDA for type 2 diabetes management and cardiovascular risk reduction. It consists of two GLP-1 analog chains fused to a modified IgG4 Fc fragment, extending its half-life to approximately 5 days. While primarily a diabetes medication, it produces meaningful weight loss and has established cardiovascular outcomes data from the REWIND trial.
- Half-Life
- 2–4 hours
- ~5 days
- Admin Route
- SubQ, Topical
- SubQ
- Research
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- Typical Dose
- 1–3 mg
- 0.75 mg → 1.5 mg
- Frequency
- 3–5 times per week
- Once weekly
- Key Benefits
- Reduces wrinkles and fine lines
- Improves skin firmness and elasticity
- Accelerates wound healing
- Reduces inflammation and oxidative damage
- Promotes hair growth and thickness
- Supports collagen and elastin production
- May improve overall skin health and appearance
- Resets aged fibroblast behavior
- Anti-fibrotic — reduces scar tissue formation
- FDA-approved for type 2 diabetes
- Once-weekly subcutaneous dosing via auto-injector pen
- Reduces HbA1c by approximately 1.1–1.6%
- Modest weight loss of 1.5–3 kg at approved doses
- Demonstrated cardiovascular risk reduction (REWIND trial)
- Established long-term safety profile
- Renal protective effects in CKD
- Side Effects
- Temporary blue-green discoloration at injection site (from copper — harmless)
- Post-injection sting (brief)
- Skin irritation with topical use (rare)
- Nausea (most common, typically transient)
- Diarrhea
- Vomiting
- Decreased appetite
- +3 more
- Stacks With
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