{"hq_id":"hq-p-out-000052","name":"Sunscreen Coral Reef Impact (Oxybenzone/Octinoxate Bans)","category":{"primary":"outdoor","secondary":"recreation","tags":["sunscreen","coral reef","oxybenzone","octinoxate","Hawaii ban","reef-safe","mineral"]},"product_tier":"OUT","overall_risk_level":"moderate","description":"Chemical UV filters oxybenzone (benzophenone-3) and octinoxate (ethylhexyl methoxycinnamate) documented to cause coral bleaching, DNA damage, and reproductive toxicity in coral at concentrations as low as 62 parts per trillion. Hawaii (2021), Palau (2020), Key West (2021), US Virgin Islands (2020), Aruba, and Bonaire banned these filters. 'Reef-safe' is not a regulated term — no standard definition. Mineral sunscreens (zinc oxide, titanium dioxide) are generally considered reef-safer but nano-form effects debated.","synthesis":{"derived_risk_level":"moderate_to_high","synthesis_confidence":0.85,"synthesis_method":"compound_composition","context_used":"human_child","context_source":"product_users","exposure_modifier":1.208,"vulnerability_escalated":true,"escalation_reason":"Child exposure group","compounds_resolved":2,"compounds_total":2,"synthesis_date":"2026-03-27","synthesis_version":"1.0.0"},"hazard_summary":{"sensitive_populations":"coral reef ecosystems, marine life","overall_risk":"moderate","primary_concerns":["Oxybenzone coral bleaching at 62 parts per trillion concentration","6,000-14,000 tons of sunscreen entering reef environments annually","'Reef-safe' is unregulated marketing — no standard definition","Hawaii, Palau, Key West, USVI banned oxybenzone/octinoxate"],"exposure_routes":"Dermal (human application); environmental (wash-off into marine environment)"},"exposure":{"routes":["dermal"],"contact_types":["skin_prolonged"],"users":["adult","child"],"duration":"hours","frequency":"daily","scenarios":["Snorkeling/swimming with sunscreen washing into reef environment","6,000-14,000 tons of sunscreen entering coral reef areas annually","Mineral sunscreen as alternative — but nano-ZnO effects debated","'Reef-safe' label: not regulated, no standard definition"],"notes":"Downs et al. 2016 (Archives of Environmental Contamination): oxybenzone causes coral bleaching at 62 ppt. Hawaii Act 104 (2018, effective 2021): banned sale of sunscreens containing oxybenzone or octinoxate. 'Reef-safe' is a marketing term — FDA has not defined it. Non-nano zinc oxide is generally considered safest for reef environments. Rash guard + hat provides UV protection without any chemical application."},"consumer_guidance":{"usage_warning":"Use mineral sunscreen (non-nano zinc oxide) when swimming near reefs. Wear rash guard + hat to minimize sunscreen needed. Check local sunscreen regulations before reef travel. 'Reef-safe' label is not regulated — verify ingredients.","safer_alternatives":["Non-nano zinc oxide mineral sunscreen","Rash guard + hat + shade (zero chemical in water)","Titanium dioxide mineral sunscreen (generally reef-safer)","Avoid spray sunscreen near water (maximizes wash-off)"],"red_flags":[{"indicator":"Product causing documented ecological damage","meaning":"Consumer choice directly impacts environmental health.","action":"Choose verified lower-impact alternatives."}],"green_flags":[{"indicator":"Third-party environmental certification or verified lower impact","meaning":"Product evaluated for ecological footprint.","verification":"Check for relevant environmental certifications."}],"what_to_ask":[{"question":"What is the environmental impact of this product beyond my personal use?","why_it_matters":"Consumer products aggregate to ecosystem-level effects.","good_answer":"Documented lower-impact formulation with environmental testing.","bad_answer":"No environmental impact assessment."}],"alternatives":[{"name":"Non-nano zinc oxide mineral sunscreen","notes":"Alternative"},{"name":"Rash guard + hat + shade","notes":"zero chemical in water"},{"name":"Titanium dioxide mineral sunscreen","notes":"generally reef-safer"}]},"regulatory":{"applicable_regulations":[{"jurisdiction":"USA -- Hawaii","regulation":"Hawaii Act 104 (Reef Sunscreen Ban)","citation":"HRS 342D-21","requirements":"Banned sale of sunscreens containing oxybenzone or octinoxate without prescription.","compliance_status":null,"effective_date":"2021-01-01","enforcing_agency":"Hawaii DOH","penalties":null,"source_ref":null}],"certifications":[],"labeling":{"required_disclosures":[],"prop65_warning":{"required":null,"chemicals":[],"endpoint":null,"notes":null},"ghs_labeling":{"required":null,"signal_word":null,"pictograms":[],"hazard_statements":[],"notes":null},"hidden_ingredients":{"trade_secret_protected":null,"categories_hidden":[],"estimated_count":null,"known_concerns":null,"notes":null},"notes":null},"recalls":[],"regulatory_gap":null,"notes":null},"lifecycle":{"recyclable":true,"disposal_guidance":"Regular waste. Recycle container.","hazardous_waste":false,"expected_lifespan":"1_year"},"formulation":{"form":"varies","key_ingredients":[{"hq_id":"hq-c-org-000463","name":"Octocrylene","role":"UV_filter","concentration_pct":"2-6"},{"hq_id":"hq-c-mix-000023","name":"Nano zinc oxide","role":"mineral_filter","concentration_pct":"10-25"}],"certifications":[]},"materials":{"common":[],"concerning":[],"preferred":[]},"compound_composition":[{"hq_id":"hq-c-org-000463","compound_name":null,"role":"UV_filter","typical_concentration":"2-6%"},{"hq_id":"hq-c-mix-000023","compound_name":null,"role":"mineral_filter","typical_concentration":"10-25%"}],"identifiers":{"common_names":["sunscreen coral reef impact (oxybenzone/octinoxate bans)"],"aliases":[],"manufacturer":null,"brands":[]},"brand_examples":[{"brand":"Clorox","manufacturer":"Clorox","market_position":"mass_market","notable":"Market-leading bleach brand"},{"brand":"Purex","manufacturer":"Henkel","market_position":"mass_market","notable":"Budget bleach brand"},{"brand":"Seventh Generation","manufacturer":"Unilever","market_position":"premium","notable":"Chlorine-free bleach alternative"}],"sources":[{"type":"expert_curation","name":"ALETHEIA Safety Database","date":"2026-03-25"},{"type":"regulation","title":"Hawaii Act 104 (Reef Sunscreen Ban) (HRS 342D-21)","jurisdiction":"USA -- Hawaii","year":2021,"citation":"HRS 342D-21","id":"src_1461c631"},{"id":"fda_sunscreen_grase_2019_octocrylene","type":"regulatory","title":"FDA 2019 OTC Sunscreen Proposed Rule: Octocrylene Category III; Systemic Absorption >0.5 ng/mL; Estrogenic Activity; Benzophenone Degradation in Aged Formulations; log Kow 6.1 Lipophilic Accumulation","year":2019,"inherited_from_compound":"hq-c-org-000463"},{"id":"octocrylene_benzophenone_degradation_2021","type":"scientific","title":"Octocrylene Degrades to Benzophenone (IARC 2B) in Stored Sunscreen Products: Commercial Product Analysis 2021; Concentration Increases with Storage Temperature and Age; Palau Key West Reef Protection Restrictions","year":2021,"inherited_from_compound":"hq-c-org-000463"},{"id":"epa_nano_zinc_oxide","type":"regulatory","title":"US EPA: Nanomaterial Case Studies — Nano Zinc Oxide in Sunscreen Products; Dermal Penetration Assessment; Aquatic Toxicity from Zn²⁺ Dissolution; Spray Inhalation Risk","year":2012,"inherited_from_compound":"hq-c-mix-000023"},{"id":"efsa_zno_sunscreen","type":"regulatory","title":"EFSA/SCCS: Scientific Opinion on Zinc Oxide (nano) in Cosmetics — Dermal Safety Assessment, Intact Skin Penetration, ZnO Fume Fever, Inhalation Concern for Spray Products","year":2016,"inherited_from_compound":"hq-c-mix-000023"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-25","timestamp":"2026-05-01T14:27:15.453Z"}}