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They are not held to the same purity, sterility, or potency standards as medications intended for human administration

Journal Molecular Sciences 26, 309

They are sold strictly as: Research chemicals Laboratory compounds Not for human consumption Not for medical use Benefits Observed in Preclinical Research (Animal Models Only) While human studies are limited, preclinical research suggests potential involvement in: Tissue repair signaling Cellular regeneration response Inflammation modulation pathways Collagen and connective tissue activity Angiogenic signaling mechanisms However, these findings do not confirm human efficacy

Understanding what each one does makes it easier to see whether they might belong in a larger plan for emotional balance and cognitive health