Marvac Hair Fiber Powder (13.5g) is a professional-grade, cosmetic hair-thickening solution designed to instantly conceal thinning areas, bald spots, and sparse crown patches. Using lightweight micro-fibers, it naturally attaches to your existing hair strands using static electricity to deliver a significantly denser and fuller look in seconds. The powder is formulated to blend seamlessly without clumping or clogging scalp pores, and it successfully resists wind, light rain, and perspiration while remaining easy to wash out with any standard shampoo.