Tier 2 - plausible but unproven The evidence for cardiovascular and kidney benefits are one layer down
Qi, Y., Niu, W., Zhu, T., Zhou, W
HELP REDUCE WRINKLES: These supplements help neutralize and eliminate free radicals found in the environment that can cause damage, sagging, and discoloration to the skin at a cellular level, resulting in clearer, smoother, brighter, and more beautiful skin
doi: 10.7326/0003-4819-116-2-103 50 BarndenLRShanZYStainesDRMarshall-GradisnikSFineganKIrelandTet al
The most common side effects are gastrointestinal: nausea, reduced appetite, mild stomach upset, occasional constipation or diarrhoea, especially as the dose is built up
2000, 21 (1): 67-86, viii