In this video, Pamela Figueroa, MD debunks the myth that everything we apply to our skin gets absorbed. She explains how the epidermis acts as a smart barrier, filtering which substances can pass through while activating the immune system to protect us. A fascinating look at our natural shield!

Eliana Gerez, MD takes us on a journey to uncover the dark side of hair dyes, revealing the hidden risks of allergic contact dermatitis. Through a real-life case, she shows how a patient developed eczema on her face and neck after using a home hair dye, highlighting that dark dyes, with higher concentrations of para-phenylenediamine, are the main culprits. But that's not all—Dr. Jerez also warns us about cross-reactions with other common products, such as antibiotics and anesthetics.

In this video, Yolanda Sola PhD, introduces us to the concept of the ultraviolet (UV) index and its importance. She describes how the UV index is used to report UV radiation levels on the Earth's surface and how it helps the population take preventive measures. She also addresses the global standardization of the UV index, its calculation, and the need to adjust our protective measures according to the index values. Finally, she offers practical recommendations on how to protect ourselves from solar radiation, depending on the UV levels.