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innisfree Rapid Vitamin C Brightening Serum for Dark Spots + Post-Breakout Marks scores 8.5/9.8 and Jack Black Protein Booster Skin Serum scores 8.5/9.8 — a near-tie where your skin type decides the winner.
These two are neck and neck — just 0.0 points apart.
Scores last verified: June 2026
28 unique
5 in common
24 unique
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.
Active Ingredient Strength is another area of separation. innisfree Rapid Vitamin C Brightening Serum for Dark Spots + Post-Breakout Marks scores 5.7 here versus 5.3 for Jack Black Protein Booster Skin Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
innisfree Rapid Vitamin C Brightening Serum for Dark Spots + Post-Breakout Marks brings Lactobacillus Ferment Lysate, Gluconolactone, and Niacinamide as actives, while jack Black Protein Booster Skin Serum relies on Camellia Sinensis Leaf Extract, Dipeptide Diaminobutyroyl Benzylamide Diacetate, and Retinyl Palmitate. Both approaches have merit, but the positioning and supporting ingredients make the difference.
innisfree Rapid Vitamin C Brightening Serum for Dark Spots + Post-Breakout Marks is better if you have
Jack Black Protein Booster Skin Serum is better if you have
At mid-range pricing with a score of 8.5, innisfree Rapid Vitamin C Brightening Serum for Dark Spots + Post-Breakout Marks is a decent pick. Jack Black Protein Booster Skin Serum sits at the premium level with a 8.5 score — the extra cost doesn't translate to better scores here.
It's a close call — both products score within 0.3 points of each other. Your choice depends on your specific skin concerns.
Based on ingredient analysis, innisfree Rapid Vitamin C Brightening Serum for Dark Spots + Post-Breakout Marks scores higher overall. See the full score breakdown above for details on each attribute.
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.
Honest skincare intel. No jargon, no gatekeeping — just the ingredients decoded.
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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.