Kiehl’s Since 1851 Vital Skin Strengthening Hyaluronic Acid Super Serum Skincare

A Hyaluronic Acid serum with an Adaptogenic complex that strengthens skin and boosts radiance.

This Hyaluronic Acid serum strengthens skin to help resist signs of aging while boosting radiance and smoothing fine lines. Formulated with 11kDa Hyaluronic Acid (Kiehl’s smallest form of Hyaluronic Acid, which penetrates 8 skin surface layers deep**), and an Adaptogenic Herbal Complex, this serum neutralizes the effects of external skin-aging stressors for youthful, radiant skin.

• Helps correct visible signs of aging, which can be caused by skin stressors including pollution, stress, and sun exposure
• Clinically shown to improve skintextureby 41%*
• Clinically demonstrated to boost radiance by 29% and improve resilience by 38% for glowing, healthy-looking skin*
• Clinically demonstrated to visibly reducefine linesby 27%*
• Clinically demonstrated* to double skin’s strength**
• Absorbs easily with a lightweight texture
• For all skin types, including sensitive skin

Size: 1.0fl oz / 30 ml

*Based on a 4-week clinical study on 58 subjects tested in urban and polluted environments.

**Based on Strength Index = Composite, average score of clinically graded parameters after using the product for 4 weeks vs one week of use.