COSRX The 6 Peptide Skin Booster Serum vs innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging
innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging scores 9.1/9.8 vs COSRX The 6 Peptide Skin Booster Serum at 8.5/9.8. innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging wins for ingredient transparency.
Head to head
The 6 Peptide Skin Booster Serum
Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging
Score comparison
innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging 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
22% overlapOnly in COSRX The 6 Peptide Skin Booster Serum
30 unique
Shared ingredients
10 in common
Only in innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging
36 unique
Why innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging comes out ahead
Where innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging really shines is ingredient transparency, scoring 7.0 compared to COSRX The 6 Peptide Skin Booster Serum's 8.8.
Active Ingredient Strength is another area of separation. COSRX The 6 Peptide Skin Booster Serum scores 6.5 here versus 5.2 for innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging. That difference comes down to how each formula is built — the ingredient list tells the story.
innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging brings Niacinamide, Allantoin, and Tocopherol 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
innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging 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
Both sit in the mid-range bracket, so value comes down to formulation quality. innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging gets the nod here with its 9.1 overall score — you're getting more for a similar outlay.
Our verdict
innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging 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 innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging?
Based on ingredient analysis, innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging scores higher overall. See the full score breakdown above for details on each attribute.
Do COSRX The 6 Peptide Skin Booster Serum and innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging 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 innisfree Retinol Green Tea PDRN™ Korean Firming & Smoothing Serum for Slow-Aging?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.