Perwoll Renew Black Liquid Detergent is specifically formulated to revive and maintain the deep, rich color of dark and black fabrics. This gentle detergent not only cleans your clothes but also renews fibers, helping to preserve the intensity of dark colors over time. With a unique formula that caters to all dark garments, Perwoll Renew Black prevents fading and ensures your favorite dark clothes stay vibrant and soft. Made with more than 90% naturally derived ingredients and packaged in a bottle containing 75% recycled plastic, it is a more sustainable choice for your laundry needs.