Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum vs Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum scores 8.9/9.8 vs Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid at 8.5/9.8. Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum wins for active ingredients.
Head to head
Retinol Skin-Renewing Daily Micro-Dose Serum

Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid
Score comparison
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum edges ahead, winning 2 of 5 attributes.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
TIEIrritation Risk
TIEActive Ingredient Strength
Kiehl's WINSIngredient Transparency
TIEFormulation Safety
Kiehl's WINSIngredient face-off
19% overlapOnly in Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum
33 unique
Shared ingredients
9 in common
Only in Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid
39 unique
Why Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum comes out ahead
Where Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum really shines is active ingredient strength, scoring 7.8 compared to Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid's 5.1. Its formula features Niacinamide, Acetyl Dipeptide-1 Cetyl Ester, and Adenosine in high positions, signalling meaningful concentrations.
Formulation Safety is another area of separation. Kiehl's Retinol Skin-Renewing Daily Micro-Dose 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.
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum brings Niacinamide, Acetyl Dipeptide-1 Cetyl Ester, and Adenosine 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
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Glycerin
- Targeting specific concerns like aging or uneven tone — Niacinamide does the heavy lifting
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 premium pricing with a score of 8.9, Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum delivers strong value. 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
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum edges ahead with a slightly stronger formulation, but Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid is still a solid pick.

Frequently asked questions
Which is better: Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum or Murad Retinol Youth Renewal Firming & Smoothing Serum with Hyaluronic Acid?
Based on ingredient analysis, Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum scores higher overall. See the full score breakdown above for details on each attribute.
Do Kiehl's Retinol Skin-Renewing Daily Micro-Dose 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 Kiehl's Retinol Skin-Renewing Daily Micro-Dose 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.