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That matters because, unlike most peptides, a small molecule can be studied orally as well as by injection it has no peptide bonds for digestive enzymes to cleave
They do not establish a universal response across species, cell systems, experimental concentrations, or material preparations
doi: 10.1080/00480169.1998.36089
Its less invasive than injections, making it a preferred choice for scenarios where participant comfort and simplicity are primary considerations in 2026
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