Which is better: Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide or Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol?

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 Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol 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 Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol?

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 Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol

Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide scores 8.9/9.8 vs Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol at 8.2/9.8. Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide wins for hydration.

Kiehl's Since 1851

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

serum

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 hydration efficacy, scoring 9.4 compared to Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol's 7.8. With Glycerin, Butylene Glycol, and Pentylene Glycol in its top ingredients, Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide delivers stronger moisture-binding capability.

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 6.4 for Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol. 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 mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol relies on Retinol, Tocopherol, and Ceramide Np. 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

Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol is better if you have

Sensitive skin — the low-irritation formula keeps things gentle
Dry or dehydrated skin that craves moisture, thanks to Dimethyl Isosorbide
Anyone who prefers clean, well-vetted formulations

Value comparison

At premium pricing with a score of 8.9, Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide delivers strong value. Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol sits at the luxury level with a 8.2 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 Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol

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

Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol

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 Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol

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 Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol?

Do Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide and Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol share ingredients?

What's the main difference between Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide and Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol?

Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide vs Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol

Head to head

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

Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol

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 Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol

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 Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol?

Do Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide and Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol share ingredients?

What's the main difference between Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide and Mother Science Retinol Synergist Anti-Aging Treatment Serum with Malassezin + 0.3% Encapsulated Retinol?