How HCG is supplied
HCG is supplied as a lyophilised powder supplied in international units, or pre-filled pen. Reported half-life: Biphasic; the terminal phase is approximately 30 hours. Storage: Lyophilised: cool and dry. Reconstituted: refrigerated, and the diluent used matters for stability.
Presentation
HCG is supplied as a lyophilised powder supplied in international units, or pre-filled pen. Reported half-life: Biphasic; the terminal phase is approximately 30 hours. Storage: Lyophilised: cool and dry. Reconstituted: refrigerated, and the diluent used matters for stability.
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 |
|---|---|---|---|---|
| HCG | - | £25 | - | in stock |
| SerenQ HCG 5000iu Peptide Pen | 5000 iu | £45 | - | out of stock |
HCGin stock£25- SerenQ HCG 5000iu Peptide Penout of stock£45
Availability checked 2026-09-08. The product page carries live stock.