For your skin
A "universal antioxidant" that protects both the oily and watery parts of your skin. It's unique because it can recycle your Vitamin C and E, making them last longer. It also prevents "sugar-sag" (glycation) and reduces fine lines.
Want the science? Keep reading ↓Mechanism of action
Potent universal antioxidant (both lipid- and water-soluble) that recycles other antioxidants like Vitamin C and E. It inhibits the activation of NF-kB, reduces pro-inflammatory cytokines, and prevents the glycation of collagen fibers (AGEs) that causes skin stiffness and yellowing.
Why we tier this moderate
1 cited paper across 1 country. The mechanism is well-described and there's at least one controlled trial in the literature, but we tier this Moderate rather than Strong to stay honest about how many specific papers we cite directly.
Cited research
Beitner H, Randomized, placebo-controlled, double blind study on the clinical efficacy of a cream containing 5% alpha-lipoic acid related to photoageing of facial skin, British Journal of Dermatology 2003;149(4):841-9
Sources: PubMed · KCI · J-Stage · CNKI · Wanfang · SFD · MFDS · Cochrane · SCCS · CIR. Every entry points to a specific document. See methodology for what each outcome label means.