
Is Thinksport / Think Thinkkids Brush-On Sun Shield SPF 30 Reef Safe?
Yes, by the law. Allowed in all 9 places we track. See why
- 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
Thinksport / Think Thinkkids Brush-On Sun Shield SPF 30 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 24.5%. It is a sunscreen for kids powder made by Thinksport / Think (thinkOperations, LLC).
Where Thinksport / Think Thinkkids Brush-On Sun Shield SPF 30 is allowed
| Location | Verdict | Why |
|---|---|---|
| Hawaii (statewide) | Allowed | No restricted ingredients found. |
| Maui County (Maui, Molokaʻi, Lānaʻi) | Allowed | No restricted ingredients found. |
| Hawaiʻi County (Big Island) | Allowed | No restricted ingredients found. |
| U.S. Virgin Islands | Allowed | No restricted ingredients found. |
| Palau | Allowed | No restricted ingredients found. |
| Aruba | Allowed | No restricted ingredients found. |
| Guam | Allowed | No restricted ingredients found. |
| Northern Mariana Islands (CNMI) | Allowed | No restricted ingredients found. |
| Thailand (all 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Guidance and repealed rules (4)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, Florida | No rule in force |
Thinksport / Think Thinkkids Brush-On Sun Shield SPF 30 active ingredients
| Ingredient | Amount | Type |
|---|---|---|
| Zinc Oxide | 24.5% | Mineral |
Thinksport / Think Thinkkids Brush-On Sun Shield SPF 30 inactive ingredients
Aluminum Starch Octenylsuccinate, Mica, Silica, Lauroyl Lysine, Kaolin, Calcium Carbonate, Caprylic/Capric Triglyceride, CI 77492, Triethoxycaprylylsilane, CI 77491, CI 77499, Bisabolol, Ceramide NP, Ascorbic Acid, Tocopheryl Acetate, Capryloyl Glycine, Undecylenoyl Glycine, Sodium Benzoate, Potassium Sorbate
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). They can cause skin reactions in people who are sensitized; they don’t affect whether a sunscreen is legal anywhere we track.
Note: Thinkkids line, sold on thinksun.com. Brush-on mineral powder. Page gives no water-resistance claim and does not state 'broad spectrum' (broadSpectrum false, unconfirmed). Size not stated in page text.
Common questions about Thinksport / Think Thinkkids Brush-On Sun Shield SPF 30
Is Thinksport / Think Thinkkids Brush-On Sun Shield SPF 30 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 Thinkkids Brush-On Sun Shield SPF 30 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 Thinkkids Brush-On Sun Shield SPF 30 contain oxybenzone?
No. It contains neither oxybenzone nor octinoxate, the two chemicals banned under Hawaii’s statewide law.
Is Thinksport / Think Thinkkids Brush-On Sun Shield SPF 30 a mineral or chemical sunscreen?
Mineral. Its UV filter is zinc oxide 24.5%.
Is the zinc oxide in Thinksport / Think Thinkkids Brush-On Sun Shield SPF 30 non-nano?
Its Drug Facts ingredient list doesn’t state particle size, and US labels aren’t required to. Many brands make non-nano claims elsewhere on the pack or website. No sunscreen law we track regulates nano particles.
What is the UPC for Thinksport / Think Thinkkids Brush-On Sun Shield SPF 30?
The UPC barcode is 810009377214. Different sizes and scents carry different barcodes.
Mineral alternatives to Thinksport / Think Thinkkids Brush-On Sun Shield SPF 30

SPF 50 Kids Mineral Sunscreen Butter Stick

Baby + Kids SPF 30+ Tin

Kids Mineral Sunscreen Cream SPF 40
Kids Mineral Sunscreen Lotion Spray SPF 50