Acetyl Hexapeptide-8 (Argireline) vs Acetyl Tetrapeptide-5: which Korean skincare ingredient?
Acetyl Hexapeptide-8 (Argireline) vs Acetyl Tetrapeptide-5: Acetyl Hexapeptide-8 (Argireline) leans toward anti-ageing & firmness, while Acetyl Tetrapeptide-5 targets dark circles & eye area. Can you use both? Yes — they layer well together.
| Acetyl Hexapeptide-8 (Argireline) | Acetyl Tetrapeptide-5 | |
|---|---|---|
| What it is | Sold, endlessly, as 'topical Botox' — a comparison the evidence does not support. Acetyl hexapeptide-8 is studied for softening the appearance of expression lines, and the studies that exist are small and mostly manufacturer-linked. Something may be happening. It is not in the same category as an injectable, and marketing that says otherwise is selling you a mood. | The peptide that turns up in almost every eye product making a puffiness claim. The proposed idea involves fluid and protein cross-linking under thin eye skin; the supporting data is thin and largely supplier-generated. Reasonable to have in an eye cream. Not reasonable to expect it to do anything about hollowing or inherited pigment. |
| Best for | Anti-ageing & firmness, Loss of firmness & elasticity | Dark circles & eye area, Anti-ageing & firmness |
| When to use | BOTH | BOTH |
Which should you choose?
Choose Acetyl Hexapeptide-8 (Argireline) if your priority is Anti-ageing & firmness; choose Acetyl Tetrapeptide-5 for Dark circles & eye area. Many Korean routines use both — yes — they layer well together.
Acetyl Hexapeptide-8 (Argireline) guide →Acetyl Tetrapeptide-5 guide →
Related K-beauty guides
Try the free tools
✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-23.
General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.