Acetyl tetrapeptide-5 — a peptide Synergie includes to support a brighter, refreshed-looking eye area. Collagen Enhancement Complex (hydrolysed soy protein, tripeptide-10 citrulline, tripeptide-1) — a peptide blend supporting firmer-looking skin. Acetyl octapeptide-3 — a peptide that helps soften the look of expression lines. Hyaluronic acid & saccharide isomerate — hydration support.