Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum vs StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum
StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum scores 9.2/9.8 vs Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum at 8.4/9.8. StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum wins for active ingredients.
Head to head
KateCeuticals® SuperCell Rejuvenation Peptide Serum
Super-C Retinol Brighten & Correct Vitamin C Serum
Score comparison
StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum edges ahead, winning 1 of 5 attributes.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
Kate Somerville WINSIrritation Risk
TIEActive Ingredient Strength
StriVectin WINSIngredient Transparency
TIEFormulation Safety
TIEIngredient face-off
17% overlapOnly in Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum
14 unique
Shared ingredients
7 in common
Only in StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum
35 unique
Why StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum comes out ahead
Where StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum really shines is active ingredient strength, scoring 9.7 compared to Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum's 5.0. Its formula features Sodium Ascorbyl Phosphate, Ascorbyl Glucoside, and Ascorbic Acid in high positions, signalling meaningful concentrations.
Hydration Efficacy is another area of separation. Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum scores 6.5 here versus 5.8 for StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum brings Sodium Ascorbyl Phosphate, Ascorbyl Glucoside, and Ascorbic Acid 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
StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Targeting specific concerns like aging or uneven tone — Sodium Ascorbyl Phosphate does the heavy lifting
- Anyone who prefers clean, well-vetted formulations
Value comparison
At luxury pricing with a score of 8.4, Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum is a decent pick. StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum sits at the premium level with a 9.2 score — the higher investment pays off in formulation quality.
Our verdict
StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum edges ahead with a slightly stronger formulation, but Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum is still a solid pick.
Frequently asked questions
Which is better: Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum or StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum?
Based on ingredient analysis, StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum scores higher overall. See the full score breakdown above for details on each attribute.
Do Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum and StriVectin Super-C Retinol Brighten & Correct Vitamin C 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 StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.