Historically what cecular science labels as colloidal gold was the elixer of gold and health they were seeking though the method to stable elixers or stone was very well hidden. It has health benefits and makes the skin more elastic giving the appearance of youth, as for prolonged life these are childish fantasies that the unassimilated and unenlightened mind seeks. Magic eternal life transmutation These are fantasies unless you have proof to show.
This does enhance mental cognition introspection.
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https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6215354/
https://pubmed.ncbi.nlm.nih.gov/27282429/