ISDIN Isdinceutics Retinal Intense Serum is a premium anti-aging treatment featuring retinal, a potent form of vitamin A that works more effectively than traditional retinol. This 50ml serum is designed to combat signs of aging while promoting skin renewal and collagen production. Key features: • Contains retinal, a more potent form of vitamin A • 50ml premium packaging with airless pump • Anti-aging formula for skin renewal • Promotes collagen production • Professional-grade skincare treatment • Elegant gold and navy packaging design The serum comes in an elegant navy blue and gold bottle with an airless pump system to preserve the active ingredients. For best results, apply a small amount to clean skin in the evening, after cleansing and toning but before moisturizer. As retinal is a potent ingredient, it's recommended to start with 2-3 times per week and gradually increase frequency as tolerance builds. Not recommended for use during pregnancy or breastfeeding.