Sodium hydroxide for alkaline direct touch will hurt the skin but in the production process and Oil and water are no longer together after saponification Sodium hydroxide but the soap and glycerin.

• 氢氧化钠为碱性，直接碰触会伤害肌肤，但是在制作过程中，和油脂、水一起皂化后就不再是氢氧化钠，而是皂和甘油了。