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This synthesis of vitamin B 12 is of no practical consequence due to its length, taking 72 chemical steps and giving an overall chemical yield well under 0.01%

an impure compound means you're not administering the intended amount of active substance

Furthermore, it is well known that it is increasing worldwide [37], this is thought to be related to the westernisation of lifestyle habits [38, 39]

The addition of the AHK-Cu complex may potentially have stimulated the proliferation of normal dermal fibroblasts and possibly enhanced their viability

Biotin is a B vitamin that helps the body convert food into energy and supports the production of keratin, which is essential for healthy hair, skin, and nails