Augustinus Bader The Vitamin C Serum vs Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum
Augustinus Bader The Vitamin C Serum scores 8.7/9.8 and Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum scores 8.4/9.8 — a near-tie where your skin type decides the winner.
Head to head
The Vitamin C Serum
KateCeuticals® SuperCell Rejuvenation Peptide Serum
Score comparison
These two are neck and neck — just 0.3 points apart.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
TIEIrritation Risk
TIEActive Ingredient Strength
Augustinus Bader WINSIngredient Transparency
TIEFormulation Safety
TIEIngredient face-off
21% overlapOnly in Augustinus Bader The Vitamin C Serum
26 unique
Shared ingredients
7 in common
Only in Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum
14 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.
Augustinus Bader The Vitamin C Serum brings Ascorbyl Glucoside, Niacinamide, and Tocopheryl Acetate 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
Augustinus Bader The Vitamin C Serum is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Anyone who prefers clean, well-vetted formulations
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
Value comparison
Both sit in the luxury bracket, so value comes down to formulation quality. Augustinus Bader The Vitamin C Serum gets the nod here with its 8.7 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: Augustinus Bader The Vitamin C Serum or Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum?
Based on ingredient analysis, Augustinus Bader The Vitamin C Serum scores higher overall. See the full score breakdown above for details on each attribute.
Do Augustinus Bader The Vitamin C Serum and Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide 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 Augustinus Bader The Vitamin C Serum and Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.