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Isntree TW-Real Bifida Ampoule scores 8.3/9.8 and SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml scores 8.4/9.8 — a near-tie where your skin type decides the winner.
These two are neck and neck — just 0.1 points apart.
Scores last verified: June 2026
14 unique
6 in common
27 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.
Hydration Efficacy is another area of separation. SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml scores 8.3 here versus 6.9 for Isntree TW-Real Bifida Ampoule. That difference comes down to how each formula is built — the ingredient list tells the story.
SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml brings Galactomyces Ferment Filtrate, Niacinamide, and Bisabolol as actives, while isntree TW-Real Bifida Ampoule relies on Bifida Ferment Lysate, Lactobacillus Ferment Lysate, and Niacinamide. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Isntree TW-Real Bifida Ampoule is better if you have
SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml is better if you have
At budget pricing with a score of 8.3, Isntree TW-Real Bifida Ampoule is a decent pick. SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml sits at the luxury level with a 8.4 score — the higher investment pays off in formulation quality.
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, SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml 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.