Spot Gray Hairs. Use for LASHES, BROWS, and BEARDS. Ultra GENTLE. Lasts up to 3 MONTHS. Accentuates EYES. Great alternative to mascara. Excellent coverage on hard to cover gray areas. GREAT for BLONDE BROWS and LASHES. WATERPROOF. Gives more YOUTHFUL LOOK. Recommended for Microblading/PMU Artists only.