Dr.G Black Snail Retinol Ampoule vs Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum
Dr.G Black Snail Retinol Ampoule scores 8.8/9.8 and Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum scores 8.9/9.8 — a near-tie where your skin type decides the winner.
Head to head

Black Snail Retinol Ampoule
Retinol Skin-Renewing Daily Micro-Dose Serum
Score comparison
These two are neck and neck — just 0.1 points apart.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
TIEIrritation Risk
TIEActive Ingredient Strength
Kiehl's WINSIngredient Transparency
TIEFormulation Safety
TIEIngredient face-off
18% overlapOnly in Dr.G Black Snail Retinol Ampoule
47 unique
Shared ingredients
10 in common
Only in Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum
32 unique
Why these two are neck and neck
These two serums take different paths to a similar destination. Both formulas include solid hydrating ingredients, and the overall scores reflect that — the gap here is genuinely slim.
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum brings Niacinamide, Acetyl Dipeptide-1 Cetyl Ester, and Adenosine as actives, while dr.G Black Snail Retinol Ampoule relies on Snail Secretion Filtrate, Niacinamide, and Adenosine. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
Dr.G Black Snail Retinol Ampoule is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Propanediol
- Targeting specific concerns like aging or uneven tone — Snail Secretion Filtrate does the heavy lifting
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
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum comes in at premium pricing with a 8.9 score, which is solid value at that tier.
Our verdict
It's a close call — both products score within 0.3 points of each other. Your choice depends on your specific skin concerns.

Frequently asked questions
Which is better: Dr.G Black Snail Retinol Ampoule or Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum?
Based on ingredient analysis, Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum scores higher overall. See the full score breakdown above for details on each attribute.
Do Dr.G Black Snail Retinol Ampoule 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 Dr.G Black Snail Retinol Ampoule 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.