The science
Two ideas underpin this sunscreen, and both have decent evidence. The first is that a tinted mineral sunscreen protects against more than UV. A 2021 review in the Journal of the American Academy of Dermatology on photoprotection beyond ultraviolet radiation summarised the growing evidence that visible light — especially the blue-violet band — contributes to hyperpigmentation and melasma, particularly in darker skin, and that iron oxides in tinted sunscreens are the practical way to block it, since neither zinc oxide nor chemical filters do so meaningfully on their own. This product's iron oxides are dosed for a sheer universal tint rather than for maximum visible-light blocking, so the benefit should be read as modest, but it is real and it is something an untinted zinc sunscreen cannot offer. The broader mechanisms and efficacy of sunscreen filters, including zinc oxide's broad UVA-UVB absorption and the importance of application density to achieving the labelled SPF, were reviewed in the same journal in 2025.
The second idea is that antioxidants in a daytime product extend a sunscreen's protection. The best-known demonstration is a 2008 study in the Journal of the American Academy of Dermatology in which a topical solution of vitamins C and E stabilised by ferulic acid was shown to protect human skin against UV-induced erythema, sunburn cell formation and thymine dimer damage — evidence that topical antioxidants reduce the oxidative injury that gets past a filter. This sunscreen uses a different antioxidant set — resveratrol, quercetin and EGCG in the top ten, with oil-soluble vitamin C and E, astaxanthin and pomegranate below — and the transfer of that evidence to these specific molecules in a silicone film is plausible rather than proven. Placement in the list suggests the doses are meaningful, but no trial of this product exists, and the correct reading is that the antioxidants add a margin of protection on top of correctly applied and reapplied SPF, never a substitute for it.
The formulation chemistry is the third, quieter piece: a water-in-silicone emulsion with silane-coated zinc oxide is what allows a 13 percent mineral load to spread thinly enough to avoid a cast and to set matte, and the same base is what makes it unsuitable for dry skin, since it contains almost no humectant or emollient.
References 3 ShowHide
- Photoprotection beyond ultraviolet radiation: A review of tinted sunscreens — Journal of the American Academy of Dermatology (2021)
- Sunscreens part 1: Mechanisms and efficacy — Journal of the American Academy of Dermatology (2025)
- A topical antioxidant solution containing vitamins C and E stabilized by ferulic acid provides protection for human skin against damage caused by ultraviolet irradiation — Journal of the American Academy of Dermatology (2008)