Pure Caffeine Powder Caffeine stimulates lymph and blood circulation in tissues. Therefore, it is an excellent natural active ingredient for skin nourishing products, in particular good for hair growth. With its help, it is possible to smooth the skin and improve its appearance in case of cellulite. It is an excellent ingredient in mature skin and anti-wrinkle products where other active ingredients need to be absorbed faster. Caffeine works effectively when you need to reduce skin puffiness or remove water accumulated in tissues, such as swelling around the eyes. Dosage: 0.1-3% Purity: 99,9% Recommendation: caffeine is added to the water phase. It dissolves better in hot water.