Natural Foaming Agents for Laundry Detergent

For natural foaming agents suitable for use in laundry detergent, safe for animals, and mixable with fermented biological liquid, we recommend these options which originate from natural or bio-based sources and are known for their mildness and biodegradability:

• Sophorolipid (Natural Surfactant, 50%): This is a surfactant of natural origin produced by fermentation. It is known for being gentle on the skin, providing good foam, and having good cleaning efficiency. Its natural origin and gentle nature make it a strong candidate for use in formulations intended to be safe for animals and potentially compatible with biological liquids.
• Sucrose Cocoate (Sugar + Coconut Surfactant): This is a natural surfactant derived from sugar and coconut oil. It is readily biodegradable, has low aquatic toxicity, and is free of preservatives. It helps increase foam density and stability and is considered very mild. Its excellent environmental profile and mildness make it suitable for your application.
• Sodium Lauroyl Lactylate (Gentle Anionic Surfactant): Derived from natural and bio-renewable resources (lactic acid and lauric acid), this surfactant is nitrogen-free and sulfate-free. It is readily biodegradable, environmentally friendly, and known for being mild to the skin while providing good foaming properties.

These options are generally considered gentle and environmentally friendly compared to many synthetic surfactants. However, when incorporating any surfactant into a formulation with fermented biological liquid, it is always recommended to perform a small test batch first to ensure compatibility and stability, as the specific composition of the biological liquid can vary.