The contents of each cartridge work with the Cap+ Volumizing Brush for just the right amount of coverage needed to expertly conceal areas of thinning hair. These keratin volume-building fibers attach statically to dry hair. Keratin fibers are easily washed off with shampoo.

Each cartridge comes pre-filled with .25 oz. of volume-building fibers, the perfect amount to provide coverage for a week’s worth of use* while keeping the fibers fresh and dry for ease of application.

Choose from 11 cartridges for the perfect color-match for your hair: Black, Dark Brown, Brown, Light Brown, Auburn, Dark Blonde, Medium Blonde, Ash Blonde, Dark Grey, Grey, or Light Grey. A clear window on each cartridge allows for visibility of volume and keratin fiber color at a glance. Each cartridge is clearly labeled and constructed for ease of insertion into brush. As with all hair fiber products, it’s recommended to store them away from humidity to avoid clumping that may interfere with ease of application.

The Cap Volumizing Keratin Brush is a revolutionary tool for natural-looking hair-building fiber application in seconds. An unbelievable way to temporarily conceal areas where hair is thinning, the Cap Volumizing Keratin Brush makes it easy for anyone to use hair-building fibers as part of their everyday routine for instant hair density. Dispense and brush in exactly where you want to thicken hair fullness, with no mess or accidental spills. No more changing hairstyles to conceal thinning. Feel confident every day with Cap by Capillus hair-building fibers – makeup for hair, providing instant hair volume.

With the Cap Volumizing Keratin Brush, thousands of miniature keratin fiber particles cling statically to your hair, instantly concealing areas of thinning. You can easily brush in just the amount of coverage that you need, focusing on sparser areas that are expertly concealed. No need to use messy sprays or wet solutions. From the makers of Capillus laser therapy caps for hair regrowth, the Cap Volumizing Brush is a cosmetic tool that combs fiber particles through your hair to conceal thinning. Both product lines (Cap hair-building fibers and Capillus caps) complement each other… one to disguise thinning cosmetically and the other to treat the hair follicle for hair regrowth medically.

*Will vary depending on usage.