AUTHOR
Pterostilbene raised LDL cholesterol by 17.1 mg/dL in the best human RCT (Riche 2014, n=80, P=0.001). The sirtuin/longevity claim has not translated to demonstrated human clinical benefit. Vanguard's revised position: we do not recommend oral pterostilbene supplementation.
13 Apr 2026
Proprietary systemic enzyme blend for proteolytic and fibrinolytic support
13 Apr 2026
Cellular energy currency and sirtuin activator with evolving regulatory status
13 Apr 2026
Cellular antioxidant and glutathione precursor for robust defense
13 Apr 2026
An essential amino acid supporting collagen synthesis, immune function, and herpes simplex virus management
13 Apr 2026
An essential branched-chain amino acid crucial for muscle protein synthesis and metabolic signaling
13 Apr 2026
A prebiotic fiber supporting gut microbiota, digestive health, and metabolic markers
13 Apr 2026
A leucine metabolite supporting muscle protein synthesis and exercise recovery with solid clinical evidence
13 Apr 2026
A traditional West African plant with limited regulatory guidance and concerning preclinical safety signals requiring clinical oversight
13 Apr 2026
Hydrolyzed peptides supporting skin, joint, and connective tissue health through targeted amino acid delivery
13 Apr 2026
An essential trace mineral supporting bone health, hormonal balance, and cognitive function
13 Apr 2026
A plant alkaloid with emerging evidence for metabolic and cardiovascular support, requiring clinical context
13 Apr 2026
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