Kiehl's
Ultra Pure High-Potency 5.0% Niacinamide Serum
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum — Lower-strength but pharmaceutically pure niacinamide with the same skin-refining aim
Best For
✓ A similar alternative to Paula's Choice 10% Niacinamide Booster
Where to Buy
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Similar products
Alternatives to Ultra Pure High-Potency 5.0% Niacinamide Serum
Paula's Choice
10% Niacinamide Booster
4.4 (3k)Higher-end pick that Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum is a dupe of
The Ordinary
Lactic Acid 5% + HA
4.8 (15k)More affordable serum with a similar profile
Timeless Skin Care
20% Vitamin C + E Ferulic Acid Serum
4.8 (14k)Popular serum alternative
Good Molecules
Gentle Retinol Cream
4.8 (9k)More affordable serum with a similar profile
Good Molecules
Niacinamide Serum
4.8 (8k)More affordable serum with a similar profile
The Ordinary
Niacinamide 10% + Zinc 1%
4.7 (192k)More affordable serum with a similar profile
Side-by-Side Comparison
Frequently asked questions
What is a good dupe for Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum?
Paula's Choice 10% Niacinamide Booster is our top-ranked alternative (70% match) — Higher-end pick that Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum is a dupe of
Is there a cheaper alternative to Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum?
Yes — Good Molecules Niacinamide Serum offers a similar result for $6 versus $40.
Where can I buy Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum?
It's available at Sephora — see the "Where to Buy" links above for current prices.