SINS 'N LASHES™ The combination of our hair oil & pure rosemary oil offers a highly efficient hair care experience for healthy and thick hair! The Sins 'n Lashes hair oil made from high-quality oils is applied before washing your hair & should be left on for 2-6 hours. During this time, the scalp is stimulated, and hair growth is encouraged. The pure rosemary oil is added to the shampoo and strengthens the routine. This combination provides even faster results and completes the hair care routine with maximum efficiency! HAIR OIL The finest hair oil made from 100% pure oils. Discover the secret to radiant, voluminous, and long hair through the natural effects of our premium Sins 'n Lashes Hair Growth Oil. Hair Oil PURE ROSEMARY OIL The cold-pressed & pure rosemary oil from Sins 'n Lashes is the perfect addition to any hair growth routine. Adding it during hair washing will produce immediately noticeable effects. Pure Rosemary Oil