Zinc Oxide
![zinc](https://selfhealschool.com/wp-content/uploads/2018/07/zinc-1920x1440.jpg)
A Summer Miracle We usually offer a workshop in the Summer, Summer Herbal Home Spa, in which I demonstrate making a waterproof natural sun block incorporating zinc oxide. One year, as I was pouring it into silicon tubes, it was too hot and it melted the tube and flowed down to burn my leg. It […]