IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging vs Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum
IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging scores 9.4/9.8 vs Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum at 8.9/9.8. IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging wins for active ingredients.
Head to head
XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging
Retinol Skin-Renewing Daily Micro-Dose Serum
Score comparison
IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging edges ahead, winning 1 of 5 attributes.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
TIEIrritation Risk
TIEActive Ingredient Strength
Kiehl's WINSIngredient Transparency
TIEFormulation Safety
TIEIngredient face-off
12% overlapOnly in IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging
23 unique
Only in Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum
37 unique
Why IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging comes out ahead
Where IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging really shines is active ingredient strength, scoring 6.0 compared to Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum's 7.8. Its formula features Niacinamide, Allantoin, and Asiaticoside in high positions, signalling meaningful concentrations.
IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging brings Niacinamide, Allantoin, and Asiaticoside as actives, while kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum relies on Niacinamide, Acetyl Dipeptide-1 Cetyl Ester, and Adenosine. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging 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
Kiehl's Retinol Skin-Renewing Daily Micro-Dose 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
- 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. IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging gets the nod here with its 9.4 overall score — you're getting more for a similar outlay.
Our verdict
IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging edges ahead with a slightly stronger formulation, but Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum is still a solid pick.
Frequently asked questions
Which is better: IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging or Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum?
Based on ingredient analysis, IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging scores higher overall. See the full score breakdown above for details on each attribute.
Do IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging and Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum share ingredients?
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
What's the main difference between IOPE XMD Stem III Clinical Recovery Serum PDRN Skincare for Anti-Aging and Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.