Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum vs SK-II R.N.A. Power Anti-Aging Cream
Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum scores 8.4/9.8 and SK-II R.N.A. Power Anti-Aging Cream scores 8.3/9.8 — a near-tie where your skin type decides the winner.
Head to head
KateCeuticals® SuperCell Rejuvenation Peptide Serum
R.N.A. Power Anti-Aging Cream
Score comparison
These two are neck and neck — just 0.1 points apart.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
SK-II WINSIrritation Risk
Kate Somerville WINSActive Ingredient Strength
SK-II WINSIngredient Transparency
SK-II WINSFormulation Safety
Kate Somerville WINSIngredient face-off
7% overlapOnly in Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum
18 unique
Only in SK-II R.N.A. Power Anti-Aging Cream
40 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 R.N.A. Power Anti-Aging Cream. 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 R.N.A. Power Anti-Aging Cream relies on Galactomyces Ferment Filtrate, Niacinamide, and Tocopheryl Acetate. 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 R.N.A. Power Anti-Aging Cream 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
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 R.N.A. Power Anti-Aging Cream?
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 R.N.A. Power Anti-Aging Cream 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 R.N.A. Power Anti-Aging Cream?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.