PLANT-DERIVED FIBERS FOR INSTANT FULLNESS
HAIR COVERAGE THAT LASTS
NATURAL SHADE BLENDING TECHNOLOGY
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
ABOUT LIGHTNING HAIR FIBERS
How to Use Lightning Hair Building 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 & 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.
Shipping and Delivery Info
Order before 12pm and we’ll ship your order the same day.
We ship Monday to Friday.
Enjoy free tracked delivery on all orders over £20, with an average delivery time of 2–3 days.
For orders under £20, tracked delivery is available for £1.95, with the same 2–3 day average delivery time.
Our Cosmetic Standards
• Vegan friendly
• Cruelty free
• No animal-derived ingredients
• Made to EU cosmetic safety standards
• Designed for everyday use
FREQUENTLY ASKED QUESTIONS
Is Lightning Hair Building Fibers Easy to Wash Out?
Yes. The fibers rinse out easily with shampoo and water. No permanent colour or residue is left behind.
How much Lightning Hair Fibers should I use?
Start with a light application and build gradually. A small amount goes a long way. Over-application can make hair look unnatural, so apply sparingly.
Can It Be Used on All Hair Types?
Lightning Hair Building Fibers work best on thinning hair where there is existing hair for fibers to attach to. They are suitable for straight, wavy, and curly hair. They are not intended for completely bald areas.
How Long Does a Bottle of Lightning Hair Building Fibers Last?
With daily use, one bottle typically lasts 4 to 6 weeks, depending on the size of the area being covered and application amount.
Is Lightning Hair Building Fibers Wind, Rain, and Sweat Proof?
The fibers hold well in normal daily conditions, including light wind and mild sweating. Heavy rain or excessive sweating can reduce hold unless secured with hairspray.
What’s the Difference Between Lightning Hair Building Fibers and Similar Products on the Market?
Lightning uses plant-based cellulose fibers to deliver instant, natural-looking thickness without dyes or permanent treatments. Unlike sprays or paints, the fibers blend into existing hair, look realistic, and wash out easily, making them ideal for everyday confidence without commitment.