There are many other things that act as ionophores for zinc. Many plant sources of polyphenols and flavonoids exist that also help move zinc into cells. One very common one are the polyphenols in green tea.
Green tea, eh? What else?
One very common one are the polyphenols in green tea.
That would be EGCG. You should get the good stuff from Japan, MATCHA green tea (the more expensive Japanese stuff, which has 18 times as much EGCG).
Then there is Quercetin. Well known for it’s zinc ionophore properties.
Zinc Ionophore Activity of Quercetin and EGCG Epigallocatechin-gallate: From Hepa 1-6 Cells to a Liposome Model
https://pubs.acs.org/doi/10.1021/jf5014633
The quercetin is probably easier to deal with.
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You can buy the green tea fat burner pills which contains elderberry and blueberry flavonoids. Quercetin will also help get zinc into cells.
Quercetin and EGCG.