INNBEAUTY PROJECT Pore Refine Pore Shrinking & Texture Smoothing Serum vs Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide scores 9.3/9.8 vs INNBEAUTY PROJECT Pore Refine Pore Shrinking & Texture Smoothing Serum at 8.5/9.8. Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide wins for active ingredients.
Head to head
Pore Refine Pore Shrinking & Texture Smoothing Serum
Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide
Score comparison
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide edges ahead, winning 1 of 5 attributes.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
TIEIrritation Risk
TIEActive Ingredient Strength
Kiehl's Since 1851 WINSIngredient Transparency
TIEFormulation Safety
TIEIngredient face-off
17% overlapOnly in INNBEAUTY PROJECT Pore Refine Pore Shrinking & Texture Smoothing Serum
43 unique
Shared ingredients
9 in common
Only in Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide
30 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 INNBEAUTY PROJECT Pore Refine Pore Shrinking & Texture Smoothing Serum's 6.1. Its formula features Niacinamide, Acetyl Dipeptide-1 Cetyl Ester, and Adenosine in high positions, signalling meaningful concentrations.
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 iNNBEAUTY PROJECT Pore Refine Pore Shrinking & Texture Smoothing Serum relies on Arginine, Lactic Acid, and Salix Alba (Willow) Bark Extract. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
INNBEAUTY PROJECT Pore Refine Pore Shrinking & Texture Smoothing 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
- Anyone who prefers clean, well-vetted formulations
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
Value comparison
Both sit in the premium bracket, so value comes down to formulation quality. Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide gets the nod here with its 9.3 overall score — you're getting more for a similar outlay.
Our verdict
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide edges ahead with a slightly stronger formulation, but INNBEAUTY PROJECT Pore Refine Pore Shrinking & Texture Smoothing Serum is still a solid pick.
Frequently asked questions
Which is better: INNBEAUTY PROJECT Pore Refine Pore Shrinking & Texture Smoothing Serum or Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide?
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 INNBEAUTY PROJECT Pore Refine Pore Shrinking & Texture Smoothing Serum and Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide share ingredients?
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
What's the main difference between INNBEAUTY PROJECT Pore Refine Pore Shrinking & Texture Smoothing Serum and Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.