Dr. Barbara Sturm Hyaluronic Serum Duo Value: $650 What it is An exclusive duo featuring two, fullsize bottles of Dr. Barbara Sturm's awardwinning Hyaluronic Serum - now clinically proven to visibly slow skin aging and deliver lasting hydration. The Hyaluronic Serum activates the skin's three youth factors - Hyaluronic Acid, Collagen and Elastin for improved hydration, firmness and elasticity. *CLINICAL TEST OF 56 DAYS. For Dr. Barbara Sturm, skin aging is associated with biological aging, including the appearance of fine lines and wrinkles, loss of elasticity and vitality, dehydrated skin and dullness. Set includes: Two bottles of Dr. Barbara Sturm's Hyaluronic Serum, 30 mL How to use: Apply a few drops of the serum evenly to your face, eye area, and neck before gently patting it in. Allow full absorption before following with a preferred Dr. Barbara Sturm serum or face cream. 2 x 30 mL Active ingredients: Hyaluronic Acid, Purslane Extract. *Please Note: The ingredient list is subject to change. Please refer to the product packaging for the most uptodate ingredient list.