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    "title": "Why your peptide vial might not contain what it says",
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    "tldr": "Peptide purity is the share of target peptide versus synthesis byproducts, measured by HPLC. It depends on batch testing, not label claims, and on handling.",
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            "value": "breaking news, News, peptide news",
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            "value": "Peptide purity is the share of target peptide versus synthesis byproducts, measured by HPLC. It depends on batch testing, not label claims, and on handling.",
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            "value": "Peptide purity, defined",
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            "value": "What \"purity\" actually measures",
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            "value": "How your own bench work changes the outcome",
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            "value": "Checking a source before you trust it",
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            "value": "What the research community gets wrong about peptide purity",
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            "q": "What does peptide purity percentage actually mean?",
            "a": "It's the share of a vial's contents confirmed by HPLC testing to be the intended peptide rather than broken fragments, leftover solvents, or other contaminants."
        },
        {
            "q": "Why does my reconstituted peptide look cloudy?",
            "a": "Cloudiness can come from incorrect diluent volume, rough shaking instead of gentle swirling, or incomplete dissolving, not necessarily contamination."
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            "q": "Is bacteriostatic water necessary for reconstitution?",
            "a": "Yes for multi-draw vials. Its benzyl alcohol content prevents bacterial growth across repeated draws, unlike plain sterile water."
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