Kiehl’s Ultra Pure High-Potency 5.0% Niacinamide Serum

About this product

Product description

Kiehl’s Ultra Pure High-Potency 5.0% Niacinamide Serum is a precise formula that helps control sebum, reduce skin imperfections while promoting an even skin tone. Suitable for oily and combination skin types. Key ingredients include Niacinamide, also known as Vitamin B3, which helps improve skin texture and has been demonstrated to have sebum-regulating and anti-inflammatory properties whilst improving skin barrier function. Sodium Hyaluronate is a high molecular weight hyaluronic acid that provides softening benefits while reducing transepidermal water loss (TEWL). Glycerin is a great natural moisturiser and skin-identical ingredient that plays an important role in skin hydration and general skin health. Fragrance-Free. Dr Webster’s Recommendation: Kiehl’s Ultra Pure High-Potency 5.0% Niacinamide Serum helps to minimise shine and brighten the skin for a more even-looking complexion. Formulated with efficacious ingredients in a minimalist formulation with only seven ingredients that is both safe and pleasing to use.

Description from Dermastore curated catalogue · Recorded Aug 9, 2026. Product claims have not been independently verified.

No complete formula is recorded. Any ingredient declarations below are not a complete list.

Follow the connections

Ingredient research

These studies concern ingredients listed or declared for this product. They do not establish that this exact formula reproduces a study result, dose or delivery method.

Where to find it

Check price, stock and delivery with the retailer. These links are not a live availability check.

• Visit Dermastore ↗

  Availability and price are a dated Dermastore catalogue snapshot; verify on the retailer site.