COSRX The 6 Peptide Skin Booster Serum vs RETINOL RETINOL SKIN CREAM
COSRX The 6 Peptide Skin Booster Serum scores 8.5/9.8 and RETINOL RETINOL SKIN CREAM scores 8.5/9.8 — a near-tie where your skin type decides the winner.
Head to head
The 6 Peptide Skin Booster Serum
RETINOL SKIN CREAM
Score comparison
These two are neck and neck — just 0.0 points apart.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
RETINOL WINSIrritation Risk
TIEActive Ingredient Strength
TIEIngredient Transparency
COSRX WINSFormulation Safety
COSRX WINSIngredient face-off
30% overlapOnly in COSRX The 6 Peptide Skin Booster Serum
23 unique
Shared ingredients
17 in common
Only in RETINOL RETINOL SKIN CREAM
40 unique
Why these two are neck and neck
These two serums take different paths to a similar destination. Both formulas include solid hydrating ingredients, and the overall scores reflect that — the gap here is genuinely slim.
Hydration Efficacy is another area of separation. RETINOL RETINOL SKIN CREAM scores 9.8 here versus 9.2 for COSRX The 6 Peptide Skin Booster Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
COSRX The 6 Peptide Skin Booster Serum brings Niacinamide, Acetyl Hexapeptide-8, and Dipeptide Diaminobutyroyl Benzylamide Diacetate as actives, while rETINOL RETINOL SKIN CREAM relies on Arginine, Glycine Soja (Soybean) Germ Extract, and Royal Jelly Extract. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
COSRX The 6 Peptide Skin Booster Serum is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Dipropylene Glycol
- Anyone who prefers clean, well-vetted formulations
RETINOL RETINOL SKIN CREAM is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Ingredients (Inci): Water
- Anyone who prefers clean, well-vetted formulations
Value comparison
COSRX The 6 Peptide Skin Booster Serum comes in at mid-range pricing with a 8.5 score, which is solid value at that tier.
Our verdict
It's a close call — both products score within 0.3 points of each other. Your choice depends on your specific skin concerns.
Frequently asked questions
Which is better: COSRX The 6 Peptide Skin Booster Serum or RETINOL RETINOL SKIN CREAM?
Based on ingredient analysis, COSRX The 6 Peptide Skin Booster Serum scores higher overall. See the full score breakdown above for details on each attribute.
Do COSRX The 6 Peptide Skin Booster Serum and RETINOL RETINOL SKIN CREAM share ingredients?
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
What's the main difference between COSRX The 6 Peptide Skin Booster Serum and RETINOL RETINOL SKIN CREAM?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.