Whats the difference with Adrenal Cortex vs CORTREX?
Adrenal cortex is simply a glandular. Cortrex is also an adrenal glandular but with added herbs vitamins and minerals for adrenal support.
Glandulars are not recommended though long term (more than a few weeks). Glandulars atrophy the glands they substitute for with long term use. So the use of adrenal glandulars can actually weaken the adrenals.
You would be better off supporting the adrenals with nutrition and adaptogenic herbs.