Decapeptide-12 vs Dulaglutide
Side-by-side comparison of key properties, dosing, and research.
Skin & Cosmetic
Decapeptide-12GLP-1 / Weight Loss Agonists
Dulaglutide- Summary
- Decapeptide-12 is a synthetic 10-amino acid peptide developed for skin brightening and depigmentation. It selectively inhibits tyrosinase activity and downstream melanogenesis pathways, reducing hyperpigmentation, dark spots, and uneven skin tone without the irritation associated with hydroquinone.
- 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
- Not applicable (topical)
- ~5 days
- Admin Route
- Topical
- SubQ
- Research
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- Typical Dose
- 5 ppm (0.0005%) concentration
- 0.75 mg → 1.5 mg
- Frequency
- Twice daily (AM and PM)
- Once weekly
- Key Benefits
- Reduces hyperpigmentation and dark spots
- Evens skin tone and improves radiance
- Inhibits post-inflammatory hyperpigmentation
- Well-tolerated alternative to hydroquinone
- Effective for melasma and age spots
- Non-cytotoxic to melanocytes
- 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
- Generally very well-tolerated
- Rare mild irritation or sensitivity in some skin types
- Results may take several weeks to become visible
- Nausea (most common, typically transient)
- Diarrhea
- Vomiting
- Decreased appetite
- +3 more
- Stacks With
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