Our take
Why We Trust This Brand
It is a genuine mineral sunblock, zinc oxide only, no chemical filters, with an unusually clean, food-grade inactive list and a chemist founder who holds the formulation patent. We hold the ingredient score at 8 because the brand does not clearly state a non-nano particle size and sells scented aromatherapeutic variants alongside the unscented one. Independence scores high: it reads as founder-owned with no funding or acquisition on record, though we could not find an explicit statement of the ownership structure. Founding year (2003) comes from secondary reviews rather than a primary company page.
What's inside
Ingredients & Safety
The single active is a patented chelated zinc oxide (23.5% in the unscented SPF 35+), suspended in vegetable glycerin instead of water; there are no chemical UV filters and no titanium dioxide. Inactives are food-grade: jojoba oil, olive fruit oil, aloe, beeswax with propolis, orange peel wax, coconut oil, plus vitamins C and E and corn/arrowroot starch. Non-nano status is not explicitly stated, and scented aromatherapeutic versions exist alongside the unscented formula.
Certifications
No listed ingredient is currently on our watch or caution list. This finding applies only to the ingredient list shown below and may not cover every product, variant, market, or reformulation.
Ingredient List Reviewed
- Zinc Oxide 23.5% (patented chelated)
- Vegetable Glycerin also listed as Glycerine, Vegetable Glycerin
- Distilled Water
- Jojoba Oil also listed as Simmondsia Chinensis Seed Oil, Jojoba
- Olive Fruit Oil
- Aloe Vera Leaf Gel
- Beeswax with Propolis
- Orange Peel Wax
- Coconut Oil also listed as Cocos Nucifera Oil
- Tocopherol (Vitamin E)
- Ascorbic Acid (Vitamin C)
- Corn & Arrowroot Starch
Formula scope: the disclosed ingredient list captured for this review. Formulas can differ by product, scent, country, and date; compare the current package with this list before deciding.
Want another top-tier option? Stream2Sea in Sunscreen & Sun Care currently meets our top criteria. Review its formula scope and cited records before deciding.
Who owns it
Ownership & Independence
Founded and run by Dr. Guerry Grune, a chemist and patent expert, and headquartered in Virginia Beach, VA. No funding database, press release, or acquisition record shows any venture, private-equity, or corporate ownership; however, we did not find a company page explicitly confirming the current ownership/capital structure.
Where to buy
Key Products
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Check the exact formula, size, seller, and availability on Amazon. Search links show results that may include other brands. Links open in a new tab.
- 3rd Rock Sunblock Sunscreen Lotion — Unscented SPF 35+ Search on Amazon →
- 3rd Rock Sunblock — Aromatherapeutic SPF 35+ Search on Amazon →