@oasis.app: - Eli Lilly Zepbound, listed via Ro: four metals below detection limits. - Limitless Biotech semaglutide: four metals below detection limits. - Umbrella Labs retatrutide: 4.7 mg measured versus 5 mg labeled. - Evolve Peptides semaglutide: 99.91% chromatographic purity. - Prime Peptides semaglutide: 5.51 mg measured versus 5 mg labeled. - Paramount Peptides semaglutide: 21.35 mg measured versus 20 mg labeled. - Coastal Peptides semaglutide: identity test failed. - Peptide Gurus retatrutide: identity test failed. For Lilly and Limitless, arsenic, cadmium and lead were below 0.01 µg/g; mercury was below 0.005 µg/g. Not detected does not mean zero. These are specific samples from 2025–2026, not a safety ranking. Research products are not interchangeable with prescription medicines. Sample results do not establish safety or suitability for human use. Check Oasis app for full peptide reports