How Retatrutide is supplied
Retatrutide is supplied as a lyophilised vial, or pre-filled pen graduated in dial units. Reported half-life: Long, supporting weekly intervals in clinical study design. Storage: Refrigerated. Pens must not be frozen. Protect from light.
Presentation
Retatrutide is supplied as a lyophilised vial, or pre-filled pen graduated in dial units. Reported half-life: Long, supporting weekly intervals in clinical study design. Storage: Refrigerated. Pens must not be frozen. Protect 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. Pens are graduated in dial units rather than millilitres, so the figure worth comparing across Retatrutide listings is milligrams, not clicks.
| Listing | Strength | Price | Cost per mg | Stock |
|---|---|---|---|---|
| Quanta Pharma Retatrutide 30mg + Free BW | 30 mg | £160 | £5.33 per mg | in stock |
| SerenQ Retatrutide Pen | - | £210 | - | in stock |
| VLS Retatrutide Pen | - | £220 | - | in stock |
| Quanta Pharma Retatrutide 50mg + Free BW | 50 mg | £225 | £4.50 per mg | in stock |
Quanta Pharma Retatrutide 30mg + Free BWin stock£160- SerenQ Retatrutide Penin stock£210
VLS Retatrutide Penin stock£220
Quanta Pharma Retatrutide 50mg + Free BWin stock£225
Availability checked 2026-09-09. The product page carries live stock.