We do extensive lab testing on all our colors and fabrics using modern processes to ensure performance if care instructions are followed. It is normal for natural dyes to shift and soften over time; they echo the ever-changing seasons of the natural world from which they came. This is part of the poetry of dyeing with plants and flower and is not a defect. Please store your products out of direct sunlight to protect against fading. Please follow the care instructions on the label.