  We discuss nucleosynthesis results obtained following the recent suggestion
that extramixing phenomena in red giants might be driven by magnetic buoyancy.
We explore for this model the production of the short-lived radioactive isotope
$^{26}$Al and of stable light nuclei, considering both the case of the general
buoyancy of flux tubes and that of the intermittent release of magnetized
unstable structures. We show that abundant $^{26}$Al can be produced, up to,
and above, the highest levels measured in presolar grains. This level would be
also sufficient to explain the early solar system $^{26}$Al as coming from a
nearby AGB star of low mass. The case of fast-moving instabilities is the most
efficient, reaching almost the same effectiveness as hot bottom burning (HBB).
