Live catalog snapshot for Melatonin vendor comparison.
| Vendor | Listing | Price | Price per unit | Stock | COA evidence | Batch | Purity |
|---|---|---|---|---|---|---|---|
| Lumira | Box of 10 vials | $90.00 | $0.90/mg | In stock | No COA | Yes | >= 99.0% |
| Peptiva Sciences | Box of 10 vials | $119.00 | $1.19/mg | In stock | No COA | PPA-CGL-MT10-MM0001 | >= 99.0% |
| Retalux | Box of 10 vials | $72.00 | $0.72/mg | Unavailable | No COA | — | >= 98.0% |
| Hang Sciences | Box of 10 vials | $110.40 | $1.10/mg | Unavailable | No COA | — | >= 98.0% |