Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum vs SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml
Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum scores 8.4/9.8 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.
Head to head
KateCeuticals® SuperCell Rejuvenation Peptide Serum
GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml
Score comparison
These two are neck and neck — just 0.0 points apart.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
SK-II WINSIrritation Risk
TIEActive Ingredient Strength
TIEIngredient Transparency
SK-II WINSFormulation Safety
Kate Somerville WINSIngredient face-off
21% overlapOnly in Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum
14 unique
Shared ingredients
7 in common
Only in SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml
27 unique
Why these two are neck and neck
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.
Formulation Safety is another area of separation. Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum scores 9.0 here versus 8.0 for SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml. That difference comes down to how each formula is built — the ingredient list tells the story.
Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum brings Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-2, Zingiber Officinale (Ginger) Root Extract, and Bisabolol 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
Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Anyone who prefers clean, well-vetted formulations
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
Both sit in the luxury bracket, so value comes down to formulation quality. Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum gets the nod here with its 8.4 overall score — you're getting more for a similar outlay.
Our verdict
It's a close call — both products score within 0.3 points of each other. Your choice depends on your specific skin concerns.
Frequently asked questions
Which is better: Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum or SK-II GenOptics Infinitaura Brightening Serum with Niacinamide, 30ml?
Based on ingredient analysis, Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum scores higher overall. See the full score breakdown above for details on each attribute.
Do Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum 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 Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum 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.