Level of protection against sunburn producing rays. Score based on the SPF range found in our tests. Approximate ranges for tested SPF: Greater than 40 (excellent), 30-39 (very good), 20-29 (good), 10 ...

Ultraviolet light has a long history as a disinfectant, and the SARS-CoV-2 virus, which causes COVID-19, is readily rendered harmless by UV light. The question is how best to harness UV light to fight ...

9.9619% OFF$7.97 at Walmart Pros: Cons: This sunscreen stick from Cetaphil has over 10,000 ratings on Amazon for good reason. Not only does it provide SPF 50, but it also nourishes and hydrates skin ...

Doctors use UV light therapy to treat various common skin conditions, such as psoriasis and eczema. They consider it effective and safe, although it may cause short- and long-term side effects, ...

We first heard about the disinfecting powers of UV-C light (ultraviolet light with a wavelength between 200 and 280 nanometers — and the same light that causes sunburn and skin-cell mutation in humans ...

If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. The efficacy of a good face mask has been well-proven to ...

Banner image: UV light being emitted by a krypton chloride excimer lamp, fueled by molecules moving between different states of energy. (Credit: Linden Research Group) A specific wavelength of ...