Citric acid is a weak acid that is found naturally in all citrus fruits. Unlike strong acids, weak acids ionize only partially when in solution. If you’ve ever sunk your teeth into a lemon or any ...

Citric acid naturally occurs in citrus fruits. Synthetic versions are produced from a type of mold and are often used as an additive. They can cause adverse reactions in some people. Citric acid is ...

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 ...

Vinegar’s pH is low, meaning it’s acidic, but it can change if additional ingredients are added. If you dilute vinegar with water, its acidity lessens, making its pH level rise. The pH level of a ...

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 ...

An exercise physiologist explains lactic acid, and it's impact on our bodies. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. What is lactic acid ...

This article was medically reviewed by Mona Gohara, M.D., a board-certified dermatologist and member of the Prevention Medical Review Board on January 20, 2020. Some anti-agers get all the attention: ...

“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 ...

Every substance’s chemistry falls somewhere on the pH scale between acidic and basic (alkaline). Different parts of your body have their own pH balances, including your vagina. Your vaginal pH level ...

Citric acid is a naturally occurring compound found in many fruits and vegetables. It’s available in powdered form, and if you’re a fan of all foods puckery and sour, you absolutely should be cooking ...