Source comparison
Dosage Tracking vs Dose-Response Mapping
Recording that you administered 250 mcg of MT-2 is dosage tracking. Documenting whether that 250 mcg produced measurably different pigmentation than 200 mcg is dose-response mapping, and the latter is what research-grade protocols require. Most Melanotan-2 res
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- Recording that you administered 250 mcg of MT-2 is dosage tracking. Documenting whether that 250 mcg produced measurably different pigmentation than 200 mcg is dose-response mapping, and the latter is what research-grade protocols require. Most Melanotan-2 research log track documents stop at the former. The pharmacological challenge with MT-2 is that pigmentation response follows a logarithmic curve, not a linear one: doubling the dose from 100 mcg to 200 mcg produces a more pronounced change than doubling from 500 mcg to 1000 mcg, because MC1R saturation limits ceiling effects.
- A structured log captures this by recording pigmentation intensity using the Fitzpatrick phototype scale at fixed intervals. Baseline before any administration, then every 48 hours throughout the loading phase. Fitzpatrick ratings range from Type I (pale white skin, always burns, never tans) to Type VI (deeply pigmented brown, never burns), with research-grade assessment using spectrophotometry to quantify melanin density objectively. Subjective descriptors like "noticeably darker" are worthless in a dataset because they can't be replicated or compared across protocols.
- Our experience working with peptide research teams shows that dose-response mapping reveals threshold effects invisible to casual observation. One facility running a comparative protocol found that pigmentation plateau occurred at cumulative doses above 3000 mcg regardless of whether that total was reached via 10 × 300 mcg or 15 × 200 mcg. The receptor saturation ceiling was dose-dependent, not frequency-dependent. They identified this pattern only because their Melanotan-2 research log track document captured Fitzpatrick progression alongside cumulative dosage across both arms.