Vegan Friendly Formulas
Natural Base Formulas
Water-Based
Easy to Use
Lightning Hair Building Fibers
Instantly boost the appearance of thinning hair with Crazy Bull’s Lightning Hair Fibers - a simple, natural-looking solution for fuller, denser hair in seconds.
Formulated from plant-derived, cellulose-based fibers, Lightning blends seamlessly with your existing hair, attaching effortlessly without the need for sprays or adhesives. The lightweight fibers sit naturally while staying durable enough to withstand sweat and light moisture throughout the day.
Ideal for filling sparse areas, softening receding hairlines, and enhancing sharp fades or fresh cuts, Lightning creates a clean, realistic finish that looks and feels like real hair. For maximum precision around hairlines and partings, use with the Crazy Bull Lightning Applicator.
Available in four natural shades:
Black, Dark Brown, Medium Brown, Light Brown
Developed and Manufactured in the UK
22g/ 0.78fl.oz.
Lightning Hair Building Fibers
How to Use Hair Fibers
Apply to dry, styled hair. Gently shake the fibers onto thinning areas, focusing on the roots. Pat lightly with fingers to blend. For best results, finish with a light mist of hairspray to lock fibers in place.
Ingredients and Size
Cellulose
Plant-derived fibers that cling to existing hair strands to instantly create the appearance of thicker, fuller hair.
Sodium Sulfate
Helps improve fiber flow and even application.
Aluminum Silicate
A mineral component that supports fiber texture and adhesion.
Ammonium Chloride
Helps maintain product stability and performance.
Colour Pigments
(FD&C Orange No. 4, D&C Green No. 5, FD&C Green No. 3, D&C Green No. 6, FD&C Blue No. 1)
Used in different combinations to create natural-looking shades that blend seamlessly with hair colour.
Lightning Hair Building Fibers are made from high-percentage natural-origin cellulose fibers, designed for instant cosmetic coverage.
Our Cosmetic Standards
• Vegan friendly
• Cruelty free
• No animal-derived ingredients
• Made to EU cosmetic safety standards
• Designed for everyday use