numbuzin No.5 Vitamin-Niacinamide Concentrated Pad vs Paula's Choice Clinical 1% Retinol Treatment
numbuzin No.5 Vitamin-Niacinamide Concentrated Pad scores 8.9/9.8 and Paula's Choice Clinical 1% Retinol Treatment scores 8.7/9.8 — a near-tie where your skin type decides the winner.
Head to head
No.5 Vitamin-Niacinamide Concentrated Pad

Clinical 1% Retinol Treatment
Score comparison
These two are neck and neck — just 0.2 points apart.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
Paula's Choice WINSIrritation Risk
TIEActive Ingredient Strength
numbuzin WINSIngredient Transparency
TIEFormulation Safety
TIEIngredient face-off
15% overlapOnly in numbuzin No.5 Vitamin-Niacinamide Concentrated Pad
18 unique
Shared ingredients
7 in common
Only in Paula's Choice Clinical 1% Retinol Treatment
40 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.
Active Ingredient Strength is another area of separation. numbuzin No.5 Vitamin-Niacinamide Concentrated Pad scores 9.8 here versus 7.1 for Paula's Choice Clinical 1% Retinol Treatment. That difference comes down to how each formula is built — the ingredient list tells the story.
numbuzin No.5 Vitamin-Niacinamide Concentrated Pad brings Niacinamide, Ascorbyl Glucoside, and Ascorbic Acid as actives, while paula's Choice Clinical 1% Retinol Treatment relies on Retinol, Tetrahexyldecyl Ascorbate, and Palmitoyl Oligopeptide. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
numbuzin No.5 Vitamin-Niacinamide Concentrated Pad 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
- Targeting specific concerns like aging or uneven tone — Niacinamide does the heavy lifting
Paula's Choice Clinical 1% Retinol Treatment 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 — Retinol does the heavy lifting
Value comparison
Both sit in the mid-range bracket, so value comes down to formulation quality. numbuzin No.5 Vitamin-Niacinamide Concentrated Pad gets the nod here with its 8.9 overall score — you're getting more for a similar outlay.
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: numbuzin No.5 Vitamin-Niacinamide Concentrated Pad or Paula's Choice Clinical 1% Retinol Treatment?
Based on ingredient analysis, numbuzin No.5 Vitamin-Niacinamide Concentrated Pad scores higher overall. See the full score breakdown above for details on each attribute.
Do numbuzin No.5 Vitamin-Niacinamide Concentrated Pad and Paula's Choice Clinical 1% Retinol Treatment share ingredients?
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
What's the main difference between numbuzin No.5 Vitamin-Niacinamide Concentrated Pad and Paula's Choice Clinical 1% Retinol Treatment?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.