If you choose glutathione, a liposomal format is often preferred because standard oral glutathione is poorly absorbed by the digestive system
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We discuss the evidence for catalase enzymes, glutathione, iron, para-aminobenzoic acid (PABA), Polygonum multiflorum (He Shou Wu or fo-ti), spermidine (including its effects on longevity), ubiquinone, and vitamins B-5, B-12, and C, as well as the hair products Mayraki and GR-7 , used by "Don't Die" campaigner, Bryan Johnson
Another component could be a peptide that modulates immune response or provides potent antioxidant support