Skin Care Review: Sudden Change Under Eye Firming Serum

I'm a middle aged guy who has a hereditary disposition of having bags "puffiness" under his eyes. The Sudden Change under eye serum works for a very short time - 15 to 20 minutes. After application (using the recommended 1 or 2 drops for each eye), the tightness or firmness under the eye lasts for about 15 - 20 minutes. Then you are back to puffy eyes again. A light film or residue does remain. The composition of the residue depends on the number of drops used during application. The more drops, the more residue and the obvious discoloration of the product in relation to your skin. I would not recommend this product.