Glycerin ↗
3 selected studies
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Kiehl's
Serums
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Kiehl’s Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum is precisely formulated to visibly revitalise, replenish and intensively hydrate the skin. Suitable for all skin types. Key ingredients include Sodium Hyaluronate, a high molecular weight form of hyaluronic acid that provides softening benefits while reducing transepidermal water loss (TEWL). Glycerin is a skin-identical moisturising ingredient that plays an important role in hydration and the general health of the skin. Minimalist formulation with only seven ingredients. Fragrance-Free. Dr Webster’s Recommendation: Kiehl’s Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum helps skin retain moisture while improving skin resiliency, especially in low-humidity or environmentally challenging conditions.
Description from Dermastore curated catalogue · Recorded Aug 9, 2026. Product claims have not been independently verified.
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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.
3 selected studies
Read the findings and limits ↗1 selected study
Read the findings and limits ↗1 selected study
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