What it is: A 2-in-1 solution for long, lush lashes and full, face-defining brows. What it does: This light, nourishing serum ontains arginine, taurine, castor oil and a hyaluronic acid complex to strengthen and revitalize hair follicles while supporting natural growth. It supports more efficient hair follicle functioning for reduced shedding and faster, natural hair growth. It helps promote the production of keratin for improved hair health and strength. It locks in moisture and revives brittle brows and lashes for a more lush, healthy appearance. It prevents damage from environmental aggressors, which can slow the hair's natural growth cycle.Research results:In a 12-week clinical trial of 60 participants, male and female, ages 18+ with self-perceived sensitive skin and eyes:- Lash length increased by 34%.- Lash thickness increased by 40%.- Lash and brow prominence increased by 130%.- Lashes were 75% more curled.- Eyebrow thickness increased by 55%.- Lashes and brows increased in hydration by 149%.- Hair follicle clog decreased by 79% Lashes and brows looked 556% healthier. How to use: Use morning and night on clean, dry skin. Using the wide side of the brush, apply a few strokes onto each brow. Using the thin or wide side of the brush, apply along the lash line as if applying eyeliner. Follow with your Augustinus Bader skincare routine. Natural Beauty & Wellness products are free of sulfates, phthalates, parabens, petrochemicals, mineral oil, silicone and talc Fragrance-free Paraben-free; phthalate-free; silicone-free; sulfate-free Made in France