Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide vs numbuzin No. 9 NAD Bio Lifting-sil Full Face Pack Sheet
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide scores 9.3/9.8 vs numbuzin No. 9 NAD Bio Lifting-sil Full Face Pack Sheet at 8.8/9.8. Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide wins for active ingredients.
Head to head
Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide
No. 9 NAD Bio Lifting-sil Full Face Pack Sheet
Score comparison
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide edges ahead, winning 2 of 5 attributes.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
Kiehl's Since 1851 WINSIrritation Risk
TIEActive Ingredient Strength
numbuzin WINSIngredient Transparency
numbuzin WINSFormulation Safety
TIEIngredient face-off
11% overlapOnly in Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide
32 unique
Shared ingredients
7 in common
Only in numbuzin No. 9 NAD Bio Lifting-sil Full Face Pack Sheet
59 unique
Why Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide comes out ahead
Where Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide really shines is active ingredient strength, scoring 7.7 compared to numbuzin No. 9 NAD Bio Lifting-sil Full Face Pack Sheet's 9.8. Its formula features Niacinamide, Acetyl Dipeptide-1 Cetyl Ester, and Adenosine in high positions, signalling meaningful concentrations.
Hydration Efficacy is another area of separation. Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide scores 9.4 here versus 8.7 for numbuzin No. 9 NAD Bio Lifting-sil Full Face Pack Sheet. That difference comes down to how each formula is built — the ingredient list tells the story.
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide brings Niacinamide, Acetyl Dipeptide-1 Cetyl Ester, and Adenosine as actives, while numbuzin No. 9 NAD Bio Lifting-sil Full Face Pack Sheet relies on Niacinamide, Arginine, and Adenosine. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide 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
numbuzin No. 9 NAD Bio Lifting-sil Full Face Pack Sheet 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
- Targeting specific concerns like aging or uneven tone — Niacinamide does the heavy lifting
Value comparison
At premium pricing with a score of 9.3, Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide delivers strong value. numbuzin No. 9 NAD Bio Lifting-sil Full Face Pack Sheet sits at the budget level with a 8.8 score — the extra cost doesn't translate to better scores here.
Our verdict
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide edges ahead with a slightly stronger formulation, but numbuzin No. 9 NAD Bio Lifting-sil Full Face Pack Sheet is still a solid pick.
Frequently asked questions
Which is better: Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide or numbuzin No. 9 NAD Bio Lifting-sil Full Face Pack Sheet?
Based on ingredient analysis, Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide scores higher overall. See the full score breakdown above for details on each attribute.
Do Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide and numbuzin No. 9 NAD Bio Lifting-sil Full Face Pack Sheet 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 Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide and numbuzin No. 9 NAD Bio Lifting-sil Full Face Pack Sheet?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.