Source: https://reeflabel.com/products/thinksport-clear-zinc-sunscreen-spf-50/ [Thinksport / Think](https://reeflabel.com/brands/thinksport/) # Is Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen Reef Safe? **Yes, by the law.** Allowed in all 9 places we track. [See why](#where) - Allowed: Hawaii - Allowed: Maui County - Allowed: Hawaiʻi County - Allowed: U.S. Virgin Islands - Allowed: Palau - Allowed: Aruba - Allowed: Guam - Allowed: Northern Mariana Islands - Allowed: Thailand Mineral-only actives Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen meets every sunscreen law we track, including the mineral-only rules in Maui County, Hawaiʻi County (Big Island) and Palau. It uses one mineral UV filter: zinc oxide 23.4%. It is a broad-spectrum sport sunscreen lotion made by Thinksport / Think (thinkOperations, LLC) and is water resistant for up to 80 minutes. Its FDA National Drug Code (NDC) is 60781-4280. SPF**50** Water resistance**80 min** Format**lotion** Type**sport** Sizes: 3 oz · 6 oz family size Where Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen is allowed | Location | Verdict | Why | | --- | --- | --- | | [Hawaii (statewide)](https://reeflabel.com/locations/hawaii-state/) | Allowed | No restricted ingredients found. | | [Maui County (Maui, Molokaʻi, Lānaʻi)](https://reeflabel.com/locations/maui-county/) | Allowed | No restricted ingredients found. | | [Hawaiʻi County (Big Island)](https://reeflabel.com/locations/hawaii-county/) | Allowed | No restricted ingredients found. | | [U.S. Virgin Islands](https://reeflabel.com/locations/us-virgin-islands/) | Allowed | No restricted ingredients found. | | [Palau](https://reeflabel.com/locations/palau/) | Allowed | No restricted ingredients found. | | [Aruba](https://reeflabel.com/locations/aruba/) | Allowed | No restricted ingredients found. | | [Guam](https://reeflabel.com/locations/guam/) | Allowed | No restricted ingredients found. | | [Northern Mariana Islands (CNMI)](https://reeflabel.com/locations/northern-mariana-islands/) | Allowed | No restricted ingredients found. | | [Thailand (all national parks)](https://reeflabel.com/locations/thailand-national-parks/) | Allowed | No restricted ingredients found. | Guidance and repealed rules (4)
Mexico: federal marine protected areas (e.g., Isla Mujeres, Punta Cancún & Punta Nizuc)Meets guidance
Bonaire (Bonaire National Marine Park)Meets guidance
U.S. National Parks with coral reefs (NPS guidance)Meets guidance
Key West, FloridaNo rule in force
Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen active ingredients | Ingredient | Amount | Type | | --- | --- | --- | | [Zinc Oxide (non-nano)](https://reeflabel.com/ingredients/zinc-oxide/) | 23.4% | Mineral | Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen inactive ingredients Purified Water, Caprylic/capric Triglyceride, Polyglyceryl-4 Isostearate, Glycerin, Hydrogenated Glyceryl Abietate, Hexyl Laurate, Cetyl Dimethicone, Aloe Barbadensis Leaf Juice, Hydrogenated Castor Oil, Magnesium Sulfate, Helianthus Annuus (Sunflower) Seed Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Tocopherol, Olea Europaea (Olive) Fruit Oil, Rubus Idaeus (Raspberry) Seed Oil, Vaccinium Macrocarpon (Cranberry) Seed Oil, Sodium Hyaluronate, Carica Papaya (Papaya) Fruit Extract, Ribes Nigrum (Black Currant) Extract, Citrus Paridisi (Grapefruit) Peel Oil, Sorbitan Sesquioleate, Caprylhydroxamic Acid, Triethoxycaprylylsilane, Glyceryl Caprylate Highlighted ingredients are regulated somewhere; red ones are restricted in at least one location we track. Dotted ones are listed below. Fragrance allergens, essential oils and alcohol None of the 80 fragrance allergens on the EU list appear on this label, and it lists no fragrance, essential oil or drying alcohol. The EU requires these allergens to be named on cosmetic labels above 0.001% in leave-on products ([Regulation 1223/2009, Annex III](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02009R1223-20250501)). They can cause skin reactions in people who are sensitized; they don’t affect whether a sunscreen is legal anywhere we track. Note: Thinksport line, sold on thinksun.com. List from the 3 oz page; the 6 oz page gives the same ingredients in the same order (uppercase, grapefruit oil labeled 'PINK GRAPEFRUIT'). 'Paridisi' spelled as on the page. Water resistance from the product description ('up to 80 minutes'). Common questions about Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen Is Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen reef safe? “Reef safe” isn’t a regulated label claim, so we answer by law instead. It meets every sunscreen law we track, including the mineral-only rules in Maui County, Hawaiʻi County (Big Island) and Palau. Its only UV filters are minerals, which every law we track permits. Is Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen legal in Hawaii? Under Hawaii’s statewide law (Act 104, which bans oxybenzone and octinoxate) it is allowed. In Maui County (Maui, Molokaʻi, Lānaʻi), which allows only mineral sunscreens, it is allowed. In Hawaiʻi County (the Big Island), which has a mineral-only rule for sales, it is allowed. Oʻahu and Kauaʻi have no county rule, so only the statewide law applies there. Does Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen contain oxybenzone? No. It contains neither oxybenzone nor octinoxate, the two chemicals banned under Hawaii’s statewide law. Is Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen a mineral or chemical sunscreen? Mineral. Its UV filter is zinc oxide 23.4%. Is the zinc oxide in Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen non-nano? The brand labels its mineral filter as non-nano. Particle size is a brand claim: US sunscreen labels aren’t required to state it, and no sunscreen law we track regulates it. Is Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen water resistant? Yes, for up to 80 minutes of swimming or sweating, according to its label. Reapply after 80 minutes in the water, immediately after towel drying, and at least every 2 hours. What is the NDC and UPC for Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen? Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen is listed with the FDA under National Drug Code 60781-4280, and its UPC barcodes are 810009378044 and 810009378037. The NDC identifies this sunscreen on its FDA drug label (DailyMed); package sizes carry longer package NDCs. Source Ingredients transcribed from [thinksun.com](https://thinksun.com/products/thinksport-spf-50-clear-zinc-sunscreen) on September 23, 2026. Formulas change. The label on the bottle you buy is the final word. Product identifiers FDA NDC 60781-4280 Package NDCs - 60781-4280-3 85 g in 1 TUBE UPC - 810009378044 3 oz - 810009378037 6 oz family size Labeler thinkOperations,LLC FDA label [Thinksport Clear Zinc SPF 50](https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=b5ce523f-eee8-f1a8-da19-b3dc14f8a58e) · effective May 31, 2023 NDCs matched to the manufacturer’s FDA drug label on DailyMed. UPCs from the brand’s or a retailer’s product listing. Other versions of Thinksport / Think Thinksport Clear Zinc Sunscreen - [Thinksport SPF 30 Clear Zinc Sunscreen](https://reeflabel.com/products/thinksport-clear-zinc-sunscreen-spf-30/) Check another label Paste any ingredient list into the checker for an instant verdict. [Check if a sunscreen is reef safe](https://reeflabel.com/checker/) Cite this page Reef Label. “Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen.” Accessed September 23, 2026. https://reeflabel.com/products/thinksport-clear-zinc-sunscreen-spf-50/ Mineral alternatives to Thinksport / Think Thinksport SPF 50 Clear Zinc Sunscreen [ Stream2Sea Water Sport Sunscreen SPF 30 SPF 30 · lotion · Mineral Allowed in all 9 places we track ](https://reeflabel.com/products/stream2sea-water-sport-sunscreen-spf-30/)[ Suntribe Active Organic Mineral Sunscreen Adults & Kids SPF 50 SPF 50 · lotion · Mineral Allowed in all 9 places we track ](https://reeflabel.com/products/suntribe-active-organic-mineral-sunscreen-spf-50/)[ All Good SPF 30 Sport Mineral Sunscreen Lotion SPF 30 · lotion · Mineral Allowed in all 9 places we track ](https://reeflabel.com/products/all-good-spf-30-sport-mineral-sunscreen-lotion/)[ Banana Boat Sport Mineral Sunscreen Lotion SPF 50+ SPF 50 · lotion · Mineral Allowed in 8 of 9 placesNot allowed: Palau ](https://reeflabel.com/products/banana-boat-sport-mineral-sunscreen-lotion-spf-50-plus/)