Refill Your Mint Laundry Booster with Ease Using Our 4kg Refill Container! This convenient 4kg container is a waste-reducing way to keep your laundry booster ready for all your washing needs. As a natural bleach alternative, it’s formulated to tackle tough stains and odours, using simple ingredients to keep whites bright and colours vibrant without bleach, dyes, or fragrances. Safe for both HE and top loader machines, septic systems, and colour-safe fabrics (we recommend testing delicate fabrics for colorfastness), this laundry booster is the ideal partner to your Mint Laundry Detergent for a naturally fresh, deeper clean.