Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum vs Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid
Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum scores 8.4/9.8 and Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid scores 8.5/9.8 — a near-tie where your skin type decides the winner.
Head to head
KateCeuticals® SuperCell Rejuvenation Peptide Serum
Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid
Score comparison
These two are neck and neck — just 0.1 points apart.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
Murad WINSIrritation Risk
TIEActive Ingredient Strength
TIEIngredient Transparency
TIEFormulation Safety
Kate Somerville WINSIngredient face-off
15% overlapOnly in Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum
14 unique
Shared ingredients
7 in common
Only in Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid
41 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 8.5 for Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid. That difference comes down to how each formula is built — the ingredient list tells the story.
Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid brings Retinol, Ceramide Np, and Solanum Lycopersicum (Tomato) Fruit Extract 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
Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Propanediol
- Anyone who prefers clean, well-vetted formulations
Value comparison
Both sit in the luxury bracket, so value comes down to formulation quality. Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid gets the nod here with its 8.5 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 Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid?
Based on ingredient analysis, Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid scores higher overall. See the full score breakdown above for details on each attribute.
Do Kate Somerville KateCeuticals® SuperCell Rejuvenation Peptide Serum and Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid 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 Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.