The mechanisms and results differ accordingly
Products are not evaluated by the FDA or any regulatory authority for human use
B12, B6, and B9 team up to control blood levels of the amino acid homocysteine, high levels of which have been associated with possible heart disease
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Antioxid Redox Signal 7:3241 Kode A, Rajendrasozhan S, Caito S, Yang SR, Megson IL, Rahman I (2008) Resveratrol induces glutathione synthesis by activation of Nrf2 and protects against cigarette smokemediated oxidative stress in human lung epithelial cells
Life Extension's quality assurance and quality control procedures have earned NSF certification, verifying that the company meets high and exacting standards.8 Good Manufacturing Practices (GMP) registration GMP registration indicates that a company follows industry best practices to produce its products.9 Life Extension is a GMP-registered company and maintains its registration through "rigorous biannual audits of [its] distribution operations and quality systems." The company's fulfillment facility has also been GMP-certified based on factors such as cleanliness, recall handling, and product returns