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Any stack involving multiple experimental compounds increases the unknowns around safety and interactions

Water, glycerin, isopentyldiol, sorbitol, butylene glycol (BG), mannitol, water-soluble collagen, recombinant human oligopeptide-1 (EGF-type), hydrogenated lecithin, sodium phosphate, caprylyl glycol, 1,2-hexanediol, recombinant human polypeptide-11 (FGF-type), umbilical cord blood stem-cell conditioned culture, human stem-cell conditioned culture, caprylic/capric triglycerides, polysorbate-80, ascorbyl propyl hyaluronate, tocopherol acetate (vitamin E), capryloyl adipeptide-17, phytosterols, ceramide EOP, ceramide NG, ceramide NP, ceramide AG, ceramide AP, vitamin B3 NMN (nicotinamide mononucleotide), lecithin, umbilical cord blood cell conditioned culture, umbilical cord blood stem-cell exosomes, cholesterol, tocopherol, arbutin, flax fatty acids, ascorbyl palmitate (vitamin C), glutathione, xanthan gum, citric acid, sodium citrate, methylparaben, phenoxyethanol

Pharmacopeia, and NSF International

Focused specialization typically correlates with better quality control and product knowledge