Understand the source comparison
Best Glow Stack Dosage Skin Health 2026: Comparison
GHK-Cu (copper tripeptide) 1–2mg Evening (8–10 PM), subcutaneous Fibroblast activation, collagen gene upregulation (COL1A1/COL3A1) 4–6 hours post-injection Essential for structural collagen synthesis. This is the compound that drives measurable dermal density
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- GHK-Cu (copper tripeptide)
- 1–2mg
- Evening (8–10 PM), subcutaneous
- Fibroblast activation, collagen gene upregulation (COL1A1/COL3A1)
- 4–6 hours post-injection
- Essential for structural collagen synthesis. This is the compound that drives measurable dermal density improvements
- BPC-157
- 250–500mcg × 2 daily
- Morning (6–8 AM) + evening (before sleep), subcutaneous
- Angiogenesis via VEGF pathway, accelerated wound healing
- Continuous with twice-daily dosing
- Maintains vascular support for new tissue. Without it, collagen synthesis outpaces blood supply and you get poor quality matrix
- Hydrolyzed Collagen Peptides
- 10–15g
- Evening (60–90 min before sleep), oral
- Provides amino acid substrates (glycine, proline, hydroxyproline) for endogenous synthesis
- Peaks 90–120 minutes post-ingestion
- Non-negotiable. You can't synthesize collagen without adequate substrate availability, and diet alone rarely provides 10g+ collagen-specific amino acids
- Vitamin C (ascorbic acid)
- 500–1,000mg
- With evening collagen dose, oral
- Cofactor for prolyl hydroxylase and lysyl hydroxylase enzymes
- Immediate (required for real-time hydroxylation)
- Collagen without hydroxylation is unstable and degrades. This isn't optional supplementation, it's biochemical requirement
- MK 677 (ibutamoren)
- 10–25mg
- Evening (before sleep), oral
- Growth hormone secretagogue, amplifies nocturnal GH pulses
- 24-hour half-life with evening dosing
- Optional amplifier. Increases endogenous GH which compounds collagen synthesis rates, but adds complexity and cost
- This comparison is based on clinical pharmacokinetics and observed outcomes in dermatological peptide research. Dosing below these thresholds produces subtherapeutic effects; dosing significantly above saturates receptors without additional benefit and increases cost unnecessarily.