Lash & Brow Growth Serum with organic, hydrating glycerin, as well as the patented complex Capixyl™ which stimulates hair growth, increases the number of new hairs and reduces hair loss. Capixyl™ helps to increase the length of the hair by up to 0.7 mm after 4 weeks, and increase the number of new hairs by up to 27% after 8 weeks of use. The serum also contains extract from the plant amaranth which helps to increase the diameter of the hair shaft, hydrolyzed wheat protein which helps to improve the strength of the hair roots, and turmeric which also helps to increase the diameter of the hair shaft, and contributes to prolonging the anagen phase, when the hair is in active growth.