Source comparison
Comparison: Degraded vs Intact Melanotan-1
Solution Color Colorless to very faint straw-yellow Amber, brown, grey, or darkened yellow Color change >1 shade = >30% oxidation; discard if amber or darker Solution Clarity Crystal-clear, no particulates Cloudy, hazy, visible particles, fibrous strands Any t
This comparison does not assign a generated winner or score.
- Solution Color
- Colorless to very faint straw-yellow
- Amber, brown, grey, or darkened yellow
- Color change >1 shade = >30% oxidation; discard if amber or darker
- Solution Clarity
- Crystal-clear, no particulates
- Cloudy, hazy, visible particles, fibrous strands
- Any turbidity = aggregation or contamination; do not use
- Lyophilised Powder
- Fine white cake adhered to glass
- Clumped, yellowed, or free-flowing powder
- Moisture-exposed powder has <60% expected potency
- Odor
- Odorless or faint medicinal smell
- Sour, rancid, chemical, or putrid
- Odor = bacterial contamination; immediate discard
- Melanogenesis Response
- Visible tanning within 5–7 days at 1mg/day
- Delayed or absent tanning; requires higher doses
- Reduced response without visible degradation = temperature excursion during shipping
- Reconstitution Behavior
- Dissolves completely in <60 seconds with gentle swirling
- Requires extended shaking; residue remains
- Incomplete dissolution = peptide has cross-linked; no longer viable