numbuzin No.5 Vitamin-Niacinamide Concentrated Pad vs SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml
numbuzin No.5 Vitamin-Niacinamide Concentrated Pad scores 8.9/9.8 vs SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml at 8.4/9.8. numbuzin No.5 Vitamin-Niacinamide Concentrated Pad wins for active ingredients.
Head to head
No.5 Vitamin-Niacinamide Concentrated Pad

GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml
Score comparison
numbuzin No.5 Vitamin-Niacinamide Concentrated Pad edges ahead, winning 2 of 5 attributes.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
SK-II WINSIrritation Risk
TIEActive Ingredient Strength
numbuzin WINSIngredient Transparency
TIEFormulation Safety
numbuzin WINSIngredient face-off
18% overlapOnly in numbuzin No.5 Vitamin-Niacinamide Concentrated Pad
19 unique
Only in SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml
28 unique
Why numbuzin No.5 Vitamin-Niacinamide Concentrated Pad comes out ahead
Where numbuzin No.5 Vitamin-Niacinamide Concentrated Pad really shines is active ingredient strength, scoring 9.8 compared to SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml's 5.3. Its formula features Niacinamide, Ascorbyl Glucoside, and Ascorbic Acid in high positions, signalling meaningful concentrations.
Hydration Efficacy is another area of separation. SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml scores 8.4 here versus 7.1 for numbuzin No.5 Vitamin-Niacinamide Concentrated Pad. That difference comes down to how each formula is built — the ingredient list tells the story.
numbuzin No.5 Vitamin-Niacinamide Concentrated Pad brings Niacinamide, Ascorbyl Glucoside, and Ascorbic Acid as actives, while sK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml relies on Galactomyces Ferment Filtrate, Niacinamide, and Bisabolol. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
numbuzin No.5 Vitamin-Niacinamide Concentrated Pad is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Butylene Glycol
- Targeting specific concerns like aging or uneven tone — Niacinamide does the heavy lifting
SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Butylene Glycol
- Anyone who prefers clean, well-vetted formulations
Value comparison
At mid-range pricing with a score of 8.9, numbuzin No.5 Vitamin-Niacinamide Concentrated Pad delivers strong value. SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml sits at the luxury level with a 8.4 score — the extra cost doesn't translate to better scores here.
Our verdict
numbuzin No.5 Vitamin-Niacinamide Concentrated Pad edges ahead with a slightly stronger formulation, but SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml is still a solid pick.

Frequently asked questions
Which is better: numbuzin No.5 Vitamin-Niacinamide Concentrated Pad or SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml?
Based on ingredient analysis, numbuzin No.5 Vitamin-Niacinamide Concentrated Pad scores higher overall. See the full score breakdown above for details on each attribute.
Do numbuzin No.5 Vitamin-Niacinamide Concentrated Pad and SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml share ingredients?
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
What's the main difference between numbuzin No.5 Vitamin-Niacinamide Concentrated Pad and SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.