Winni’s Detergent for Black and Dark Coloured Fabrics gently and naturally washes any type of dark coloured clothing, including lingerie, woollen clothing, and even jeans. It is gentle on fibres, keeping your clothes in good condition and preserving their colors. The enzymatic formula is specifically created to eliminate unsightly pilling, avoid the transfer of colours, and guarantee a fresh fragrance (contains organic Argan Oil extract).