Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum vs medicube Deep Vita A Retinol Serum
Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum scores 8.4/9.8 and medicube Deep Vita A Retinol Serum scores 8.6/9.8 — a near-tie where your skin type decides the winner.
Head to head
KateCeuticals® SuperCell Rejuvenation Peptide Serum
Deep Vita A Retinol Serum
Score comparison
These two are neck and neck — just 0.2 points apart.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
medicube WINSIrritation Risk
TIEActive Ingredient Strength
medicube WINSIngredient Transparency
medicube WINSFormulation Safety
TIEIngredient face-off
15% overlapOnly in Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum
13 unique
Shared ingredients
8 in common
Only in medicube Deep Vita A Retinol Serum
45 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.
Active Ingredient Strength is another area of separation. medicube Deep Vita A Retinol Serum scores 6.7 here versus 5.0 for Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
medicube Deep Vita A Retinol Serum brings Niacinamide, Allantoin, and Dipotassium Glycyrrhizate as actives, while kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum relies on Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-2, Zingiber Officinale (Ginger) Root Extract, 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
medicube Deep Vita A Retinol Serum is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Dipropylene Glycol
- Anyone who prefers clean, well-vetted formulations
Value comparison
Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum comes in at luxury pricing with a 8.4 score, which is solid value at that tier.
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 medicube Deep Vita A Retinol Serum?
Based on ingredient analysis, medicube Deep Vita A Retinol Serum scores higher overall. See the full score breakdown above for details on each attribute.
Do Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum and medicube Deep Vita A Retinol Serum 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 medicube Deep Vita A Retinol Serum?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.