COSRX The 6 Peptide Skin Booster Serum vs Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid
COSRX The 6 Peptide Skin Booster Serum scores 8.5/9.8 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
The 6 Peptide Skin Booster Serum
Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid
Score comparison
These two are neck and neck — just 0.0 points apart.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
Murad WINSIrritation Risk
TIEActive Ingredient Strength
COSRX WINSIngredient Transparency
COSRX WINSFormulation Safety
COSRX WINSIngredient face-off
15% overlapOnly in COSRX The 6 Peptide Skin Booster Serum
33 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.
Hydration Efficacy is another area of separation. Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid scores 9.8 here versus 9.2 for COSRX The 6 Peptide Skin Booster Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
COSRX The 6 Peptide Skin Booster Serum brings Niacinamide, Acetyl Hexapeptide-8, and Dipeptide Diaminobutyroyl Benzylamide Diacetate as actives, while murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid relies on Retinol, Ceramide Np, and Solanum Lycopersicum (Tomato) Fruit Extract. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
COSRX The 6 Peptide Skin Booster 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
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
At mid-range pricing with a score of 8.5, COSRX The 6 Peptide Skin Booster Serum is a decent pick. Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid sits at the luxury level with a 8.5 score — the extra cost doesn't translate to better scores here.
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: COSRX The 6 Peptide Skin Booster Serum or Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid?
Based on ingredient analysis, COSRX The 6 Peptide Skin Booster Serum scores higher overall. See the full score breakdown above for details on each attribute.
Do COSRX The 6 Peptide Skin Booster 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 COSRX The 6 Peptide Skin Booster 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.