Asian flush, also known as alcohol flush reaction, occurs when the body has difficulty breaking down alcohol. Specifically, it’s linked to a genetic variant that reduces the activity of an enzyme called aldehyde dehydrogenase 2 (ALDH2). Without enough ALDH2, acetaldehyde—a toxic byproduct of alcohol metabolism—builds up in the body, leading to redness, warmth, and discomfort. https://iblush.com/