Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide vs Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide scores 9.3/9.8 vs Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin at 9.0/9.8. Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide wins for gentle formulation.
Head to head
Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide
Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin
Score comparison
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide edges ahead, winning 4 of 5 attributes.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
Kiehl's Since 1851 WINSIrritation Risk
Kiehl's Since 1851 WINSActive Ingredient Strength
Kiehl's Since 1851 WINSIngredient Transparency
Rejuran WINSFormulation Safety
Kiehl's Since 1851 WINSIngredient face-off
17% overlapOnly in Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide
32 unique
Shared ingredients
7 in common
Only in Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin
34 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 irritation risk, scoring 9.5 compared to Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin's 8.0. Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin includes fragrance ingredients like Fragrance, which can be a concern for reactive skin.
Active Ingredient Strength is another area of separation. Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide scores 7.7 here versus 6.3 for Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin. 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 rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin relies on Niacinamide, Allantoin, 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
Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Butylene Glycol
- Anyone who prefers clean, well-vetted formulations
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. Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin sits at the mid-range level with a 9.0 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 Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin 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 Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin?
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 Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin 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 Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.