COSRX The Vitamin C 23 Serum vs innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars
innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars scores 9.6/9.8 vs COSRX The Vitamin C 23 Serum at 6.3/9.8. innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars wins for hydration.
Head to head
Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars
Score comparison
innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars takes this one, winning 3 of 5 attributes.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
innisfree WINSIrritation Risk
TIEActive Ingredient Strength
innisfree WINSIngredient Transparency
innisfree WINSFormulation Safety
TIEIngredient face-off
11% overlapOnly in COSRX The Vitamin C 23 Serum
7 unique
Only in innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars
31 unique
Why innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars comes out ahead
Where innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars really shines is hydration efficacy, scoring 9.8 compared to COSRX The Vitamin C 23 Serum's 3.9. With Glycerin, Butylene Glycol, and Betaine in its top ingredients, innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars delivers stronger moisture-binding capability.
Active Ingredient Strength is another area of separation. innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars scores 6.4 here versus 4.1 for COSRX The Vitamin C 23 Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars brings Niacinamide, Allantoin, and Lactobacillus Ferment Lysate as actives, while cOSRX The Vitamin C 23 Serum relies on Ascorbic Acid, Ethyl Ascorbyl Ether, and Allantoin. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
COSRX The Vitamin C 23 Serum is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Anyone who prefers clean, well-vetted formulations
innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars 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 budget pricing with a score of 6.3, COSRX The Vitamin C 23 Serum is a decent pick. innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars sits at the mid-range level with a 9.6 score — the higher investment pays off in formulation quality.
Our verdict
innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars wins this comparison with a meaningfully stronger ingredient profile and overall score.
Frequently asked questions
Which is better: COSRX The Vitamin C 23 Serum or innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars?
Based on ingredient analysis, innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars scores higher overall. See the full score breakdown above for details on each attribute.
Do COSRX The Vitamin C 23 Serum and innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars 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 Vitamin C 23 Serum and innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.
More comparisons
We may earn a commission from purchases made through our links, at no extra cost to you. This helps us keep Gracie free and independent.