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A peptide is a chain of amino acids held together by peptide bonds, and those bonds are precisely what digestive enzymes (pepsin, trypsin) are built to cut, with the acidic stomach environment finishing the job so an oral peptide is largely destroyed before it can be absorbed, which is why injection is the default
This treatment is considered the safest and most useful of all skin whitening products
qPCR-based microarray using total RNA isolated from hippocampal tissues of non-Tg, vehicle-fed, and Hex-fed 5XFAD mice was performed as described previously (9, 47)
Its origins are in gastric juice
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