Now, I'm not wearing sunscreen in this video, but if I was, those blue spots would not appear, and then when my sunscreen wore off later, the solar freckles would reappear in UV light and I would know that it was time to reapply sunscreen.
Eu não estou a usar protetor solar neste vídeo, mas se estivesse, aquelas manchas azuis não iam aparecer. Depois quando o meu protetor solar desaparecesse mais tarde, as sardas solares iriam reaparecer sob a luz UV e eu saberia que chegara a hora de reaplicar o protetor solar.