COSRX The 6 Peptide Skin Booster Serum vs Summer Fridays Midnight Ritual Retinol Renewal Serum
Summer Fridays Midnight Ritual Retinol Renewal Serum scores 8.8/9.8 vs COSRX The 6 Peptide Skin Booster Serum at 8.5/9.8. Summer Fridays Midnight Ritual Retinol Renewal Serum wins for hydration.
Head to head
The 6 Peptide Skin Booster Serum
Midnight Ritual Retinol Renewal Serum
Score comparison
Summer Fridays Midnight Ritual Retinol Renewal Serum edges ahead, winning 3 of 5 attributes.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
COSRX WINSIrritation Risk
TIEActive Ingredient Strength
COSRX WINSIngredient Transparency
COSRX WINSFormulation Safety
TIEIngredient face-off
20% overlapOnly in COSRX The 6 Peptide Skin Booster Serum
32 unique
Shared ingredients
8 in common
Only in Summer Fridays Midnight Ritual Retinol Renewal Serum
26 unique
Why Summer Fridays Midnight Ritual Retinol Renewal Serum comes out ahead
Where Summer Fridays Midnight Ritual Retinol Renewal Serum really shines is hydration efficacy, scoring 7.9 compared to COSRX The 6 Peptide Skin Booster Serum's 9.2. With Glycerin, Propanediol, and Sodium Hyaluronate in its top ingredients, Summer Fridays Midnight Ritual Retinol Renewal Serum delivers stronger moisture-binding capability.
Active Ingredient Strength is another area of separation. COSRX The 6 Peptide Skin Booster Serum scores 6.5 here versus 5.9 for Summer Fridays Midnight Ritual Retinol Renewal Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
Summer Fridays Midnight Ritual Retinol Renewal Serum brings Retinyl Linoleate, Retinol, and Centella Asiatica Extract as actives, while cOSRX The 6 Peptide Skin Booster Serum relies on Niacinamide, Acetyl Hexapeptide-8, and Dipeptide Diaminobutyroyl Benzylamide Diacetate. 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
Summer Fridays Midnight Ritual Retinol Renewal Serum is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Glycerin
- Anyone who prefers clean, well-vetted formulations
Value comparison
At mid-range pricing with a score of 8.5, COSRX The 6 Peptide Skin Booster Serum is a decent pick. Summer Fridays Midnight Ritual Retinol Renewal Serum sits at the premium level with a 8.8 score — the higher investment pays off in formulation quality.
Our verdict
Summer Fridays Midnight Ritual Retinol Renewal Serum edges ahead with a slightly stronger formulation, but COSRX The 6 Peptide Skin Booster Serum is still a solid pick.
Frequently asked questions
Which is better: COSRX The 6 Peptide Skin Booster Serum or Summer Fridays Midnight Ritual Retinol Renewal Serum?
Based on ingredient analysis, Summer Fridays Midnight Ritual Retinol Renewal Serum scores higher overall. See the full score breakdown above for details on each attribute.
Do COSRX The 6 Peptide Skin Booster Serum and Summer Fridays Midnight Ritual Retinol Renewal Serum 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 Summer Fridays Midnight Ritual Retinol Renewal Serum?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.