It’s Here! The safe and natural way to eliminate the appearance of fine and thinning hair.4d fibres are a totally natural fibre, made from the same organic protein as your hair. Once applied the tiny microfibers blend perfectly with your own hair, leaving your hair looking full, healthy and thicker.Reclaim your confidence in minutes. 4d Hair instantly covers the appearance of hair loss and convincingly hides bald patches. Fibres are 100% colourfast and will not run or stain. Suitable for both men and women.Available in 5 different colours Black, Dark Brown, Medium Brown, Dark Grey and Blonde.