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by Kiehl's
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Vital Skin-Strengthening Hyaluronic Acid Super Serum
All Skin Types, including Sensitive Skin

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

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

What It’s Good For
Protects against stressors including sun exposure, pollution, stress, lack of sleep, diet and temperature that can lead to early signs of aging
Clinically shown to improve skin texture by 41%*
Clinically demonstrated to boost radiance by 29% and improve resilience by 38% for glowing, healthy-looking skin*
Clinically demonstrated to visibly reduces fine lines by 27%*
Clinically demonstrated* to double skin’s strength**
Absorbs easily with a lightweight texture
For all skin types, including sensitive skin

How to Use
Apply our Hyaluronic Acid serum onto cleansed face and neck, morning and night
Can also be used before another serum
Then apply a daily moisturizer
Avoid contact with eyes
If contact occurs, rinse thoroughly with water.

Product Specifications


  • Ships to US
  • Expected Delivery: Oct 25 - Oct 29


  • Returns accepted within 30 days of shipment for orders within the Contiguous US.