KENGOLD Bio-Peptide Under Eye Serum is a scientifically advanced formula designed to visibly reduce dark circles, puffiness, and fine lines around the delicate eye area. Powered by 0.1% Retinal (Retinaldehyde)—a potent but gentle vitamin A derivative—and Vitamin K, this serum helps strengthen fragile under-eye capillaries and stimulates collagen production to restore a brighter, firmer appearance. Bio-peptides further support skin repair and elasticity, minimizing the look of tired, aging eyes. The formula is lightweight, non-greasy, and fast-absorbing, making it ideal for day and night use under makeup or moisturizer. Unlike harsher retinoids, Retinal 0.1% offers effective results with minimal irritation, even for sensitive skin. Free from parabens, sulfates, artificial fragrances, and cruelty, this clean skincare solution helps you wake up to fresher, more youthful eyes every day. Suitable for all skin types and dermatologically tested, KENGOLD Under Eye Serum is your targeted solution to long-term eye care and under-eye rejuvenation.