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How Melatonin is supplied
Melatonin is supplied as an oral tablet or liquid. Reported half-life: Short, approximately 40 minutes for immediate-release. Storage: Cool, dry, protected from light.
Reference only. This page covers what the compound is, how it is presented and how it is handled. It does not give dosing protocols or administration schedules, and it is not medical advice.
Presentation
Melatonin is supplied as an oral tablet or liquid. Reported half-life: Short, approximately 40 minutes for immediate-release. Storage: Cool, dry, protected from light.
Why presentation changes the comparison
Cost per milligram is calculated from the strength printed on the listing. Where a listing states no strength the column is left blank rather than estimated. Cost per milligram is the figure that survives a change of presentation, which is why it is the one to compare.
| Listing | Strength | Price | Cost per mg | Stock |
|---|---|---|---|---|
| Quanta Pharma Melatonin | - | £30 | - | in stock |
Stocked at The PED Shop
Quanta Pharma Melatoninin stock£30
Availability checked 2026-09-09. The product page carries live stock.