skinChemists Pure Caffeine 5% Biphase Serum is a revitalising facial serum formulated with 5% pure caffeine. This innovative oil and water formula must be shaken before use to activate the powerful ingredients. Designed to energise and hydrate, the serum targets signs of fatigue and aging, working to promote a smoother, firmer, and more vibrant complexion. It helps reduce the appearance of puffiness and dark circles for a more awakened look, supports improved skin elasticity and firmness, and provides antioxidant properties to help protect the skin from stressors. For best results, apply 2-3 drops to clean skin, gently massaging onto the face and neck until fully absorbed, and use both morning and evening before moisturising.