Thick Fiber Hair Fibers for Thinning Hair — Black 2-Pack (2x25g), Natural Keratin, Wind & Sweat Resistant

THICK FIBER Hair Fibers are tiny colored keratin fibers that instantly darken and thicken thinning areas, concealing bald spots and receding hairlines in seconds.

These lightweight hair-building fibers come in a pack of two 25g bottles and are formulated from natural keratin to blend with your existing hair. Designed for both men and women, the fibers cling to hair strands to produce a fuller appearance that resists wind, sweat, and light moisture until you wash it out. Choose THICK FIBER when you want quick coverage that looks natural without chemical additives.

How quickly will I see results with THICK FIBER?

Results are immediate: apply directly to dry, thinning areas and the fibers adhere to your hair to build visible density within seconds. No lengthy routines or special tools are required—just shake, apply, and pat to blend.

• Two 25g bottles for repeated applications or travel and home use
• Shake bottle sideways for even dispensing
• Works on short or longer hair where natural strands remain
• Finish with hairspray for extra hold and longevity

Will the fibers stay put during daily activities?

THICK FIBER is formulated to resist everyday challenges like wind, light rain, and perspiration so the coverage lasts until you shampoo it out. While very durable, the hold is cosmetic—stronger fixation is achieved when you set the fibers with a light hairspray.

• Natural keratin composition reduces slipping while preserving texture
• Resists sweat and light moisture for day-long wear
• Best performance on dry hair; avoid rubbing wet areas
• Easily removed with regular shampoo when desired

How do I apply THICK FIBER for the most natural look?

Apply to completely dry hair, focusing on thinning zones. Shake the bottle gently to distribute fibers, sprinkle in a crosswise motion, and then lightly pat or style to blend—this helps fibers bind to individual strands for a realistic finish.

• Use short, controlled shakes to prevent over-application
• Apply in layers for progressive coverage instead of a single heavy application
• Finish with a light hold spray to lock fibers in place
• Not intended for fully bald areas; requires some existing hair

Are the fibers safe and what are they made of?

THICK FIBER is made from colored keratin fibers—the same protein found in natural hair—so the texture blends seamlessly with your own strands. The product avoids harsh chemicals and is designed for cosmetic use only; it won’t alter hair growth or treat underlying conditions.

• 100% keratin-based fibers for realistic appearance
• No harmful chemical additives in the formula
• Anti-itch and formulated to be gentle on the scalp
• Cosmetic coverage only; remove with shampoo

Who is this for: THICK FIBER is aimed at people experiencing mild to moderate thinning who want quick, non-invasive coverage—including receding hairlines, part widening, crown thinning, and small bald patches where some hair remains. It suits both men and women who prefer a fast, temporary solution that blends with natural hair color and can be easily washed out. If you have a completely bald area, consult other options designed for full scalp coverage.

Ingredients

Keratin, Cetrimonium Chloride, Silica, DMDM Hydantoin, Iron Oxides