Retinol, niacinamide, vitamin C and hyaluronic acid: In recent years, these commonly-found ingredients have been name-dropped over and over again in the skincare community. Hyaluronic acid, in ...

Medically reviewed by Jay N. Yepuri, MD Key Takeaways Acid reflux is when stomach acid flows into the esophagus and mouth, ...

Lindsay Modglin is a nurse and professional writer who regularly writes about complex medical topics, as well as travel and the great outdoors. She holds a professional certificate in scientific ...

You know about the brightening wonders of vitamin C; the wrinkle smoothing prowess of vitamin A and hydrating powers of vitamin E. But chances are you might not yet have stumbled upon vitamin F, or ...

No ingredient has a hold on the skincare market quite like hyaluronic acid. These days, you’d be hard-pressed to find a product that doesn’t have it in its formulation. But what is hyaluronic acid ...

Years ago, a friend casually told me her secret to glowing skin wasn’t retinol or vitamin C. It was a cholesterol cream. I laughed. At the time, cholesterol conjured images of clogged arteries, not ...

Aspartic acid, also called aminosuccinic acid or aspartate, is a non-essential amino acid that is made naturally in the human body through dietary intake. Image ...

“Hypochlorous acid is a naturally occurring ingredient in the body with antimicrobial and anti-inflammatory properties,” explains dermatologist Teresa Song, MD. “It is made by our immune ...

Palmitic acid is a saturated long-chain fatty acid (LCFA), a term for fatty acids containing 13 to 21 carbons. Palmitic acid contains 16 carbons. This acid is found in most fats and oils, such as ...

When acidic components get into rain or other forms of precipitation, acid rain can make trees die. It won't hurt you to walk or swim in acid rain, but the particles that cause it may hurt your lungs ...

Acid rain is a very broad term. It encompasses not only rain but also other forms of precipitation including fog, hail, sleet, snow, dust, and gas. It can even cause haze or smog, contributing to the ...