About this item A fast and seamless solution that achieves a natural appearance - Effortlessly conceal hair loss with THICK FIBER hair fibers, utilizing high-quality keratin fibers in shades that seamlessly blend with your natural hair color. Browse our selection of Black and Dark Brown shades to discover the ideal match for your hair." Endures for a long time - Hair Thickening Fiber creates a natural look with its thick and durable fibers that resist wind, rain, and moisture. It's sweat-resistant and lasts until you wash your hair. Suitable for men and women experiencing thinning hair. Simple to apply - Shake the HAIR THICKENING FIBER bottle, and apply on dry hair in salt and pepper direction. Pat gently to distribute evenly. For best results, use ​HAIR HOLDING SPRAY as a finishing touch. ​BEST QUALITY TO RELY ON - HAIR THICKENING FIBER is a hair-thickening product made exclusively from 100% natural keratin protein fibers, the same compound that binds hair strands. It is a completely natural hair fiber, free of harmful chemicals. The pure formula makes HAIR THICKENING FIBER anti-itch and resistant to sweat and weather. For best results, use any hair styling spray. A BRAND YOU CAN RELY - A brand with a successful history of 30 years BERKOWITS is a name you can rely on in terms of product quality. Available in more than 22 prime locations countrywide. We provide over 50 educational videos to show how our natural hair-thickening fiber looks on both Men and women. Trust us to stand behind our product and support you every step of the way. ​Note: ​The ​product is ​for thinning areas, not bald spots. Suitable for both men and women.