Technically, permanent cosmetic procedures are considered permanent because the color is implanted into the dermal layer. However, natural fading can occur and require touch ups in 2 to 5 years.  The sun is the greatest villain to colors fading so always use an SPF sun block of at least 20 or wear sunglasses.  Tip:  For eyebrows, you can simply use an SPF sunblock tube for lips and just wipe over brows before sun exposure – quick and easy to ensure lasting results!