Make your own sunscreen with ingredients aimed at achieving SPF 50 protection, more reliably than many commercial alternatives. This natural formula combines zinc oxide for its broad-spectrum defense against UVA and UVB rays, with olive oil, coconut oil, and beeswax for a skin-friendly and reef-safe blend. While exact SPF values are hard to guarantee, this DIY approach puts you in control of using trusted, non-toxic ingredients, offering a promising route to safer, high-SPF sun care. Problems with Commercial Sunscreens Finding a good sunscreen is challenging. Many store-bought sunscreens don't work as advertised. Consumer Reports and EWG (Environmental Working Group) each found significant lower SPF's than the manufactures'…