PT-141
Libido & Arousal
Each vial contains research-grade PT-141, independently assayed to a verified purity exceeding 99%. Studied within the libido category for libido & arousal, every batch is third-pa…
Peptides are short chains of amino acids — the same building blocks that make up proteins. In research, specific sequences are studied for their signalling roles across metabolism, tissue repair, and cellular health. All products on this site are intended strictly for laboratory and research use.
Lyophilised (freeze-dried) peptides are reconstituted with bacteriostatic water before use. The required volume depends on your target concentration — use our peptide calculator to determine the exact amount. Store reconstituted vials refrigerated and use within the validated window.
Unopened lyophilised vials are stable at room temperature for short periods but are best kept refrigerated (2–8°C) and away from light. Once reconstituted, refrigerate at all times. For long-term storage, freeze the lyophilised powder at -20°C.
In-stock orders placed before 1pm ET dispatch same day in plain, insulated, discreet packaging. Most addresses receive delivery within 1–3 business days via express courier, with tracking provided at dispatch.
Independent third-party analysis by Janoshik Analytical.
“First order of PT-141 from Doctides and I'm impressed. Purity has been consistent lot to lot, which matters most for arousal and libido signalling. No stability issues across the study window. No complaints — exactly what a research budget needs.”
“This is my second lot of PT-141 for a melanocortin study. Powder was well-lyophilised and dissolved in seconds. The data around arousal and libido signalling has been encouraging so far. No complaints — exactly what a research budget needs.”
“Reordered PT-141 again for a melanocortin study. The third-party Janoshik numbers lined up with the site. Results in the model line up with what the literature suggests for arousal and libido signalling. Support answered my questions quickly too.”
“Been running PT-141 in a melanocortin study for a few weeks now. Purity has been consistent lot to lot, which matters most for arousal and libido signalling. Results in the model line up with what the literature suggests for arousal and libido signalling. Will definitely reorder.”
“Bought PT-141 for a melanocortin study on a colleague's recommendation. Powder was well-lyophilised and dissolved in seconds. Discreet packaging with no branding on the outside — appreciated. Will definitely reorder.”
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Purity Guaranteed
Advanced purification delivers research-grade peptides that consistently exceed 99% purity, batch after batch.
Third-Party Lab Tested
Independent laboratories verify every batch for identity, mass and purity before it ever reaches you.
Precision Accuracy
Precise dosing and formulation consistency mean every vial is measured for reliable, repeatable results.