Skin aging and appearance Archive

As of August 2026, sunscreens in the United States will be allowed to use an ingredient called bemotrizinol. It blocks both UVA and UVB rays and it doesn’t appear to be absorbed into the bloodstream, unlike many sunscreen chemicals.

Peptides are the building blocks of proteins that play key roles for health. But the benefits and risks of supplementing with injectable peptides, which are popular on social media, are largely unknown.

A variety of disparate factors can speed up people's biological aging, which describes how well their body functions (in comparison to chronological aging). Drivers of aging include ultraviolet light, stress, smoking, obesity, radiation, and loneliness and social isolation.

People's lips may appear thinner with age due to several factors, including lower production of collagen and elastin, proteins that provide plumpness to skin. Genes also play a role, as do habits such as smoking and excessive sun exposure.

Dermaplaning is a technique that removes hair and dead skin cells from the face. Dermaplaning uses a type of razor or scalpel. When performed properly, the technique is safe, though it can nick facial skin.

Red light therapy involves using devices that emit red or near-infrared light aimed at the skin. It is believed to reduce inflammation and boost production of collagen. Research suggests it can improve an array of skin problems, including fine lines, dark spots, redness, slow-healing wounds, scars, and acne. Unlike ultraviolet light, red light therapy isn't associated with greater risks for skin cancer. Scientists are still determining the optimal doses of red light therapy for various skin conditions.