With new sunscreen rules in Maui and Hawaiʻi Counties, how do I choose a reef-safe (mineral-based) sunscreen? The best reef-safe formulas are made with non-nano zinc-oxide or non-nano titanium-dioxide. With the many sunscreen options out there, along with sometimes misleading "reef-safe" labeling, it can be overwhelming to choose a trustworthy sunscreen! Many great reef-safe sunscreen options are made locally here in Hawaiʻi and are available in plastic-free packaging. Be sure to carefully read labels as you select a sunscreen to protect your skin from the sun's rays.