Name: Human Growth Hormone (HGH) 24IU
Brand: Lab77 Peptides
SKU: LAB-8406
Price: 70.00 USD
Availability: InStock

What is HGH (Somatropin)?

Somatropin is produced using recombinant DNA technology in laboratory expression systems, yielding a protein sequence matching the growth hormone naturally secreted by the anterior pituitary. Its large, well-defined structure and central role in the endocrine system make it one of the most extensively characterized hormones used in research.

This listing is HGH (Somatropin) 24IU from Lab77 Peptides (United States), sold on Stairway to Gray with escrow: your payment is held until the order arrives and only then released to the brand.

How it is understood to work

Growth hormone binds GH receptors across multiple tissue types, most notably in the liver, where receptor engagement drives IGF-1 production; it also acts directly on fat and muscle tissue to influence lipolysis and protein synthesis. These combined direct and IGF-1-mediated effects are central to research on the GH axis.

Research status

Somatropin is the active ingredient in several government-approved medicines used clinically for growth hormone deficiency and related conditions, giving it an unusually deep base of published pharmacology, safety and mechanism data compared with most research peptides. In a research setting it continues to be studied for body composition, bone and muscle metabolism, tissue repair and the biology of aging.

This listing: Lab77 Peptides HGH (Somatropin)

Brand: Lab77 Peptides
Also sold by: HK Peptide 10 IU $50.00 · HK Peptide 15 IU $70.00 · Maxed Out Compounds 36 IU $300.00 · SynTide Research 10 IU $58.00 · Cyprus Peptides 36 IU $188.00

Lab testing

There is no public lab report for this listing yet. We can ask the brand for the batch COA before you order. Many buyers also split an independent HPLC test with others who bought the same batch.

Request the batch COA · How group testing works

Bought through escrow: the brand is only paid after you confirm delivery. If the parcel never arrives, or an independent test shows the wrong compound or a significant under-fill, open a claim before releasing payment.

Specifications

Compound: HGH (Somatropin)
Also known as: Human Growth Hormone, Somatotropin
Class: Recombinant 191-amino-acid pituitary hormone
Form: Lyophilized (freeze-dried) powder
Molecular formula: C₉₉₀H₁₅₂₈N₂₆₂O₃₀₀S₇
Molecular weight: ~22.1 kDa
Structure: 191 amino acids, single chain
Appearance: White lyophilized powder
Per vial: 24IU
Brand: Lab77 Peptides · United States

Handling & storage

Supplied as a lyophilized powder; store unopened vials at -20C protected from light, and once reconstituted with bacteriostatic water keep refrigerated at 2-8C for use within the study’s defined timeframe. As a large protein hormone, it is more susceptible to denaturation from agitation or freeze-thaw cycling than short peptides.

Questions

Is research-grade HGH the same molecule as the approved pharmaceutical version?

When correctly manufactured, recombinant somatropin has the same 191-amino-acid sequence as pituitary-derived and pharmaceutical-grade GH; quality depends entirely on manufacturing and verified third-party testing, which is why independent HPLC and identity data matter.

Why is HGH measured in IU rather than milligrams on some labels?

Growth hormone potency has historically been standardized in International Units based on biological activity assays rather than mass alone, a convention carried over from earlier pituitary-extract preparations, though mg-equivalent figures are also commonly listed.

For laboratory research use only. Not for human or veterinary use. Nothing on this page is medical advice.