When sourcing Green Soap, primarily used in the tattooing and medical industries, you must prioritize Tincture of Green Soap (USP) standards. Ensure the product is formulated with pure vegetable oils, glycerin, and lavender oil, which provides the characteristic scent and natural antiseptic properties. The pH balance should be skin-neutral to prevent irritation during long procedures. For B2B buyers, it is critical to verify the concentration levels; most professional-grade green soaps are sold as concentrates (typically 1:8 or 1:10 dilution ratios) to optimize shipping costs and storage efficiency.