An extract from Leontopodium alpinum (edelweiss) reduced blue light damage in lab-grown skin cells by boosting collagen production and reducing harmful inflammation markers. At concentrations of 10-15 mg/mL, it lowered reactive oxygen species (free radicals) and blocked the cellular pathway that blue light triggers to damage skin.

Researchers exposed human skin cells to blue light, then treated some with edelweiss extract to see what changed. They measured collagen, inflammation markers, free radicals, and calcium levels using standard lab techniques.

Funding not disclosed in abstract