Four common sunscreen ingredients were shown to kill or bleach coral at extremely low concentrations (as low as one drop in 6.5 Olympic sized swimming pools).
1 Oxybenzone (Benzophenone-3, BP-3) – Sunscreen ingredient that disrupts coral reproduction, causes coral bleaching, and damages coral DNA. Oxybenzone is found in over 3500 sunscreen products worldwide.
2 Butylparaben – Preservative ingredient shown to cause coral bleaching.
3 Octinoxate (Ethylhexyl methoxycinnamate) – Sunscreen ingredient shown to cause coral bleaching.
4 Methylbenzylidene camphor (4MBC) – Sunscreen ingredient shown to cause coral bleaching. Allowed in Europe and Canada, not in USA or Japan.
Specktra6 Tinted SPF (a physical formula) is free of all 4 and reef safe!!