Inside a Sunbest sunscreen film: a dive from the skin’s surface to one Sunbest-BMT molecule as a UV photon arrives, then three avobenzone films under one 12 J/cm² UVA dose, every number from the SPF Lab engine.
From the skin's surface through the stratum corneum into a sunscreen film of four Sunbest filters; one 310 nm UV photon meets Sunbest-BMT, and the energy leaves as heat, not as a broken bond.
Three films carry the same avobenzone and take one 12 J/cm² UVA dose, the ISO 24443 dose for a film of UVA-PF 10: avobenzone alone, with EHMC, and with Sunbest-BMT. The partner decides how much of avobenzone's absorbance survives; the numbers are in-silico estimates from the SPF Lab engine, not measurements.
The Sunbest range · The SPF Lab
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Sunbest · two scenes
From the skin’s surface down to one molecule of Sunbest-BMT as a UV photon arrives, then three avobenzone films through one standard UVA exposure. Every number is computed live by the SPF Lab engine.
The energy leaves as heat, not as a broken bond.
One exposure
Avobenzone absorbance left, and the film’s UVA-PF
BMT accepts avobenzone’s excited-state energy before it can break a bond.