Sodium Hydroxide, also called lye or caustic soda, is a staple ingredient in the soap making process. At Creations from Eden we have decided to carry smaller quantities of this item to help out our hobbyist soapmakers. For 25kg bags, please see our bulk section. We regretfully do not offer shipping on this item due to the fact it is considered a dangerous good. Please arrange for pickup when ordering. (Why can't we ship it? Technically we can ship this item, however you are looking at a $35 Hazmat charge plus Courier fees and paperwork (Canada Post will not ship it), which are not worth it unless you are buying extremely large quantities.) Please read about handling lye here. MSDS information is available on request. Please indicate you want a copy when ordering. Note: When working with lye please keep a large jug of vinegar next to you at all times. If any of the lye gets spilled or on the skin, vinegar will neutralize it and stop the burning. Always use gloves and goggles and do not breathe in the fumes.