The Right Question
"Do peptides work?" is a reasonable starting point. A more precise version: which peptides, in which delivery systems, produced measurable outcomes — and how do those conditions compare to how this product is used?
The Delivery Problem
Early peptide formulas produced inconsistent results for two reasons: instability (peptides degrading before reaching skin) and poor bioavailability (inability to penetrate the lipid barrier). This created category scepticism — not because the science was wrong, but because delivery technology hadn't caught up.
Lipid conjugation (the "Palmitoyl" prefix) resolved much of this: attaching a fatty acid chain makes a peptide lipophilic enough to penetrate the stratum corneum. Combined with improved encapsulation and formulation pH management, modern peptide formulas routinely achieve the clinical outcomes earlier iterations only inconsistently demonstrated.
The Evidence for Key Ingredients
Palmitoyl Pentapeptide-4 (Matrixyl): A double-blind placebo-controlled study in the International Journal of Cosmetic Science showed 33% reduction in wrinkle depth after six months. Collagen-stimulating activity confirmed in multiple independent studies.
Copper Tripeptide-1 (GHK-Cu): Over 80 published studies on wound healing, collagen synthesis, and antioxidant activity. A 2001 RCT showed comparable efficacy to tretinoin in reducing fine lines — without tretinoin's irritation profile.
Oligopeptide-1/EGF: Used clinically in wound healing since the 1980s. A 2011 split-face study showed significant wrinkle depth reduction and texture improvement versus placebo at 8 weeks.
Acetyl Hexapeptide-8 (Argireline): A 2002 study demonstrated 17% wrinkle depth reduction after 30 days at 10% concentration. Mechanism confirmed: inhibits SNAP-25 complex, reducing acetylcholine-triggered micro-contractions.
Nonapeptide-1: Multiple studies confirm selective alpha-MSH receptor inhibition and reduced melanin synthesis without photosensitisation risk — particularly relevant at Southeast Asia's UV Index levels.
Manufacturing: Why Korea
The All Round Serum is manufactured in South Korea under K-cosmetic OEM standards. Active concentrations, peptide purity, and formulation pH are verified at production and shelf-life stages — the difference between evidence for a peptide compound and evidence for a finished product.
Three Things That Distinguish Effective Peptide Formulas
Concentration: Most effective studies use 2–10% peptide complex. Peptides listed last on an ingredient deck indicate concentrations unlikely to reproduce study results.
pH: Most peptides are most stable between pH 5.0 and 7.0. Formulations outside this range risk compromising peptide integrity before absorption.
Delivery: Lipid-conjugated peptides (Palmitoyl, Acetyl prefix) demonstrate superior penetration versus unconjugated equivalents.
The All Round Serum meets all three criteria.
Take the free AURA skin analysis to understand how the evidence translates to your specific skin and climate. Begin the analysis →
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