An eco-friendly liquid composition for pretreatment of fabrics is disclosed. The composition may include one or more nonionic surfactants, water, and optional ingredients such as a small amount of anionic surfactant, protease enzyme, borax, pH adjusting agent, fragrance, and preservative. The one or more nonionic surfactants may include alkyl polyglycoside. If nonionic surfactants other than the alkyl polyglycoside are included, at least 60% of the total nonionic surfactant in the composition is alkyl polyglycoside. The composition may have a Natural Index of at least 98% as defined herein. The composition may be essentially free of any propellant and bleach component.