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KLOW is a four-peptide research blend totaling 80mg of lyophilized powder. It contains BPC-157 (10mg), a 15-amino-acid synthetic peptide derived from a sequence found in human gastric juice protein; TB-500 (10mg), a 43-amino-acid fragment of the naturally occurring protein thymosin beta-4; GHK-Cu (50mg), a copper-bound tripeptide first isolated from human blood plasma in 1973; and KPV (10mg), a three-amino-acid fragment from the C-terminal region of alpha-melanocyte-stimulating hormone. The powder appears white to off-white with a faint blue tint from the copper in GHK-Cu. It dissolves readily in water and should be stored refrigerated at 2–8 °C. Each component is a well-characterized peptide with an established chemical identity and published molecular structure.
This product is strictly for research purposes only. Not approved for human or animal use.
ℹ️ Note: 1 kit includes 10 vials
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Every batch is HPLC & Mass Spectrometry verified. Full lab reports are available for every order within 30 days of purchase.
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[oath_oos product=”HGH Fragment 176-191″ date=”February 24th” image=”https://oathresearch.com/wp-content/uploads/2025/08/5AD-1-scaled.png” rec_name=”AOD 9604″ rec_desc=”a modified peptide fragment derived from amino acids 176-191 of human growth hormone with an additional tyrosine residue” link=”/product/aod9604/” btn_text=”View AOD 9604″]
GH Fragment 176-191, also known as HGH Frag 176-191 or Somatotropin (176-191), is a synthetic peptide consisting of the last 16 amino acids of the 191-amino-acid human growth hormone (hGH) chain. Its sequence corresponds to positions 176 through 191 of the full hGH protein. The fragment has the molecular formula C78H123N23O22S2 and a molecular weight of approximately 1817.12 g/mol. Like the parent molecule, it contains a disulfide bond formed between two cysteine residues in the chain.
This fragment was first isolated and studied in the 1980s and 1990s by researchers investigating which portions of the growth hormone molecule were associated with different structural domains. It represents less than 10% of the full hGH protein by length. GH Fragment 176-191 is supplied as a white lyophilized powder that is soluble in water and remains stable under proper refrigerated storage conditions.
This product is strictly for research purposes only. Not approved for human or animal use.
PubChem Reference: View compound profile on NIH PubChem
Origin: HGH amino acids 176-191
Size: 16 amino acids
Percentage of HGH: Less than 10%
Structure: Contains disulfide bond
Form: White lyophilized powder
Solubility: Water-soluble
Stability: Stable with proper storage
Storage: Keep refrigerated 36‑46 °F (2‑8 °C)
| Weight | 5mg |
|---|
Dr. Marcus Donovan –
Excellent purity on this hGH fragment. The 100% claim held up under HPLC and mass spec. Ideal for research on adipocyte metabolism without the off-target effects of full-length growth hormone
Prof. Angela R. Jimenez –
Flawless reconstitution and stability. 100% purity confirmed in-house. Reliable source for this specific growth hormone fragment already placed a reorder for our ongoing adipose tissue studies
Dr. Henrik P. Lundqvist –
Perfect for our studies on targeted fat oxidation pathways. The 176-191 fragment behaved exactly as expected no GH receptor activation in control assays. Highly recommend for metabolic research
Prof. Natalie S. Chen –
Clean, consistent product across two separate batches. CAS 66004-57-7 verified. Works well in our in vitro lipolysis assays. Would give 5 stars if the shipping to Asia was a bit faster, but the peptide quality is undeniable