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.

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 8.9/9.8. Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide wins for gentle formulation.

Kiehl's Since 1851

Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide

serumpremium

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 6.2 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 8.9 score — the extra cost doesn't translate to better scores here.

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

Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide

Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin

Attribute battle

Hydration Efficacy

Irritation Risk

Active Ingredient Strength

Ingredient Transparency

Formulation Safety

Ingredient face-off

Only in Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide

Shared ingredients

Only in Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin

Why Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide comes out ahead

Best for your skin type

Value comparison

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?

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?

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?

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

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

Attribute battle

Hydration Efficacy

Irritation Risk

Active Ingredient Strength

Ingredient Transparency

Formulation Safety

Ingredient face-off

Only in Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide

Shared ingredients

Only in Rejuran Turnover Mask c-PDRN® 5-Pack for Uneven Texture & Brightening Dull Skin

Why Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide comes out ahead

Best for your skin type

Value comparison

Our verdict

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?

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?

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?