Natural Laundry Liquid Detergent is specially formulated to work in both high-efficiency and standard machines. Stain-fighting formula uses nonanimal-derived enzymes for protein stain removal and is safe for septic and greywater systems. Hypoallergenic, nontoxic, biodegradable liquid detergent does not contain phosphates, optical brighteners, petroleum-based ingredients, artificial fragrances or dyes. Detergent has never been tested on animals and is Kosher-certified. Concentrated liquid detergent yields 33 standard loads or 50 HE loads and delivers a clear scent.