lipoic acid

noun

li·​po·​ic acid lī-ˈpō-ik-  li- 

: any of several microbial growth factors

especially : a fatty acid C₈H₁₄O₂S₂ that is essential for the oxidation of alpha-keto acids (such as pyruvic acid) in metabolism

Examples of lipoic acid in a Sentence

Recent Examples on the Web

Key Ingredients: Peptides, alpha lipoic acid, vitamin B3, vitamin C ester, SPF 25 How to Apply: Use the cream as part of a daily, morning-skincare regime. —Kiana Murden, Vogue, 20 Jan. 2025

Crafted with ashwagandha, NAC and alpha lipoic acid, the supplement includes a special form of CoQ10 for enhanced bioavailability. —Perri Ormont Blumberg, Glamour, 10 Sep. 2024

Peptides and alpha-lipoic acid are among the ingredients that help lift and tighten the delicate skin on your neck, while niacinamide and vitamin C work to brighten dark spots. —Ava Darrin, ELLE, 16 Nov. 2022

High doses of ascorbic acid, L-ascorbic acid, or alpha-lipoic acid: These acid forms of vitamin C can increase skin sensitivity. —Renée Rouleau, refinery29.com, 28 Jan. 2022

Additional ingredients like CoQ10, alpha-lipoic acid, vitamin C and organic plant extracts help brighten skin. —oregonlive, 14 May 2020

First up are the Strawberry Rosé Complete Cleansing Towelettes, which deposit alpha lipoic acid (from the titular strawberries) and vitamin C onto skin while fully removing makeup — even the most stubborn waterproof varieties. —Marci Robin, Allure, 24 Oct. 2019

The latter helps regular blood sugar and insulin levels.. Brussels sprouts also contain an antioxidant called alpha-lipoic acid that’s been studied for its potential ability to help improve insulin function. —Cynthia Sass, Mph, Health.com, 9 July 2019

There is willow bark extract which decongests the skin and tightens pores, as well as alpha-lipoic acid to give skin a bright, healthy glow. —Micaela English, Town & Country, 18 Mar. 2015

Word History

Etymology

lip-, lipo-

First Known Use

circa 1951, in the meaning defined above

Rhymes for lipoic acid

• antacid
• placid

Medical Definition

lipoic acid

noun

li·​po·​ic acid li-ˌpō-ik-  lī- 

: any of several microbial growth factors

especially : a crystalline compound C₈H₁₄O₂S₂ that is essential for the oxidation of alpha-keto acids (as pyruvic acid) in metabolism

called also protogen