innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars vs MERIT Great Skin Instant Glow Serum with Niacinamide and Hyaluronic Acid
innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars scores 9.6/9.8 vs MERIT Great Skin Instant Glow Serum with Niacinamide and Hyaluronic Acid at 6.2/9.8. 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
Great Skin Instant Glow Serum with Niacinamide and Hyaluronic Acid
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
20% overlapOnly in innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars
28 unique
Shared ingredients
7 in common
Only in MERIT Great Skin Instant Glow Serum with Niacinamide and Hyaluronic Acid
11 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 MERIT Great Skin Instant Glow Serum with Niacinamide and Hyaluronic Acid's 5.8. 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 3.3 for MERIT Great Skin Instant Glow Serum with Niacinamide and Hyaluronic Acid. 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 mERIT Great Skin Instant Glow Serum with Niacinamide and Hyaluronic Acid relies on Niacinamide and Tocopherol. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
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
MERIT Great Skin Instant Glow Serum with Niacinamide and Hyaluronic Acid is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Anyone who prefers clean, well-vetted formulations
Value comparison
At mid-range pricing with a score of 9.6, innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars delivers strong value. MERIT Great Skin Instant Glow Serum with Niacinamide and Hyaluronic Acid sits at the premium level with a 6.2 score — the extra cost doesn't translate to better scores here.
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: innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars or MERIT Great Skin Instant Glow Serum with Niacinamide and Hyaluronic Acid?
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 innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars and MERIT Great Skin Instant Glow Serum with Niacinamide and Hyaluronic Acid share ingredients?
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
What's the main difference between innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars and MERIT Great Skin Instant Glow Serum with Niacinamide and Hyaluronic Acid?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.