Nanolash Castor Oil is a 100% pure, cold-pressed castor oil for eyelashes and eyebrows that strengthens, thickens, and improves the condition of the hairs with regular use. It is the best way to achieve naturally strong, fuller, and more lustrous lashes and brows - without unnecessary additives and without overburdening. The Nanolash castor oil for lashes and brows contains a high concentration of ricinoleic acid as well as unsaturated omega-3 and omega-6 fatty acids.. Thanks to these ingredients, the hairs become visibly healthier, thicker, and more resistant to shedding. After just a few days, you will notice a difference in their elasticity and shine, and after a few weeks - a visible improvement in volume and thickness.