The term ‘biological’ is a European term used to inform consumers when a product contains enzymes. Products with enzymes are referred to as ‘biological’ while products without enzymes are termed ‘non-biological’. If you are looking for a non-biological product use Omo or Omo Front Loader Sensitive laundry powder or Omo or Omo Front Loader Small & Mighty Senistive Liquid detergent. (Omo products apart from the Sensitive variants are biological.