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[17] Miscellaneous agents Apart from these, large doses of vitamin C, hyaluronic acid, epidermal growth factor and combinations of multiple natural extracts (natural collagen extracts, bearberry extract, Glycyrrhiza glabra extract, Lycopene, Kelp, olive leaf extract, hawthorn, jujube, sea buckthorn, starch, coix seed, pearl extracts, etc.,) are also promoted for skin whitening in the form of food or dietary supplements with no scientific evidence

These occur because vitamin B12 is essential for maintaining the protective sheath around nerves

Niacin contributes through alternative synthesis routes

Hsu FY, Lin FJ, Ou HT, Huang SH, Wang CC