HGH vs Tesamorelin
HGH and Tesamorelin are compared here on the things that actually differ between them: what class each belongs to, what each acts on, how each is supplied and what each costs per milligram. Where the registry has no figure for one of them the row is left out rather than filled in.
Side by side
| HGH | Tesamorelin | |
|---|---|---|
| Class | Recombinant human growth hormone (191 amino acids) | Stabilised GHRH analogue |
| Acts on | A recombinant form of the 191-amino-acid pituitary hormone. Acts directly at the GH receptor and indirectly through hepatic IGF-1 production. | A synthetic GHRH analogue with a trans-3-hexenoyl modification improving stability. Studied specifically in visceral adipose tissue reduction. |
| Supplied as | Lyophilised powder supplied in international units (iu), commonly as 10iu vials in 100iu kits, or as a pre-filled pen. | Lyophilised powder or pre-filled pen. |
| Half-life | Short in circulation, typically two to three hours; downstream IGF-1 elevation persists considerably longer. | Longer than sermorelin, though still measured in minutes to a couple of hours. |
| Storage | Refrigerated at 2-8 C both before and after reconstitution. Never frozen. Growth hormone is a folded protein and loses activity if frozen or shaken vigorously. | 2-8 C. |
| Listings | 6 | 2 |
| Price from | £60 | £55 |
What actually differs
The clearest difference is class: HGH is a recombinant human growth hormone (191 amino acids), Tesamorelin is a stabilised GHRH analogue. They are not supplied the same way. HGH comes as a lyophilised powder supplied in international units (iu), commonly as 10iu vials in 100iu kits, or as a pre-filled pen, Tesamorelin as a lyophilised powder or pre-filled pen. Half-life differs as well: Short in circulation, typically two to three hours; downstream IGF-1 elevation persists considerably longer for HGH against Longer than sermorelin, though still measured in minutes to a couple of hours for Tesamorelin.
- SerenQ HGH 30iu Peptide Penin stock£60
HGH - 2Ktropinin stock£140
HGH - Genxtropinin stock£150- SerenQ HGH 100iu Peptide Penin stock£165
Quanta Pharma Tesamorelin 10mgout of stock£55- SerenQ Tesamorelin 10mg Peptide Penout of stock£65
Availability checked 2026-09-09. The product page carries live stock.