Instead of choosing between internal production and external supplementation, you are utilizing both pathways
Topical Synergies Vitamin C serums complement injectable GHK-Cu by providing an essential cofactor for collagen synthesis while offering additional antioxidant protection
doi: 10.1007/s11064-007-9496-5 54
Some probiotics, such as Lactobacillus acidophilus , can sense the changes in the intestinal environment, regulate the function of intestinal endocrine cells, and promote the secretion of gastrointestinal hormones such as glucagon-like peptide-1 (GLP-1) (Smith et al., 2019)
Redox and activation status of monocytes from human immunodeficiency virus-infected patients: relationship with viral load
Heidelberger C, Chaudhuri NK, Danneberg P, Mooren D, Griesbach L, Duschinsky R et al (1957) Fluorinated pyrimidines, a new class of tumour-inhibitory compounds