How Toppik works 1 Friday, June 28, 2024 Toppik hair fibres contain a natural formula that instantly gives you thicker hair, hiding the signs of thinning. Even better, they are completely undetectable, blending seamlessly with your hair for an effortless look. Suitable for every gender, our hair fiber technology is like no other. It's effective, long-lasting and easy to apply, making it a product you can rely on. Read on to find out what makes Toppik's hair growth fibers the first choice for those looking to enhance the texture of their hair.