GLP-3 RT frequently asked questions

GLP-3 RT is a synthetic research peptide designed for activity at the GIP receptor (GIPR), GLP-1 receptor (GLP-1R) and glucagon receptor (GCGR). GLP3 Peptide Co. supplies it as a white lyophilized powder in 10 mg, 15 mg, 30 mg vials, with an independent certificate of analysis for every lot.

GLP-3 research material is GLP-3 RT supplied for laboratory research, sold by lot, with each lot's identity, purity and net content documented by an independent laboratory in a published certificate of analysis.

"GLP-3" is an informal name for this three-receptor design. It does not refer to a naturally occurring hormone; there is no endogenous peptide called GLP-3. That is why GLP3 Labs identifies the material by its molecular data and lot results rather than by name alone.

The molecular formula is C221H342N46O68 and the average molecular weight is 4731.33 g/mol. The peptide has 39 residues.

Store sealed, dry and protected from light at the temperature stated on the vial label. Allow a cold vial to reach room temperature before opening.

There is no natural hormone named GLP-3. "GLP-3" is shorthand for GLP-3 RT, a synthetic 39-residue peptide designed for the GIP, GLP-1 and glucagon receptors.

None. "GLP-3 peptide" is the informal name; GLP-3 RT is the product name used on Klow.bio and on the certificates.

GLP-3 RT is analyzed with complementary methods: HPLC-UV for purity, LC-MS for identity, a quantitative measurement for net content, and, where listed, LAL endotoxin and PCR microbial testing. Results are published per lot at glp3peptide.bio/coa/.

Every lot is tested by Freedom Diagnostics, an independent third-party analytical laboratory. GLP3 Peptide Co. does not test its own material for published certificates.

Current lots report HPLC-UV purity between 99.67% and 99.98%, against a stated release specification of ≥95%. The most recent result is 99.98% for lot KB89232.

By liquid chromatography–mass spectrometry (LC-MS), performed by Freedom Diagnostics on every lot. LC-MS separates the sample and measures the mass of the main component, confirming it has the molecular weight expected for the compound. Observed ions such as [M+3H]3+ near m/z 1578 and [M+4H]4+ near m/z 1184 are compared with values calculated from the molecular weight of 4731.33.

Yes, where listed. Lot KB89232 has published LAL endotoxin results. Every lot page in the COA archive states whether endotoxin and microbial tests were performed for that lot.

HPLC (high-performance liquid chromatography) separates a sample's components so each appears as a peak. The purity percentage is the main peak's share of all UV-detected peak area. It does not confirm identity (the separate LC-MS test does) or measure the amount of peptide in the vial (net content does).

A GLP-3 certificate of analysis is the testing laboratory's report for one lot: the lot number, test dates, methods and results for purity, identity and net content. GLP3 Peptide Co. publishes every lot's COA as a readable page at glp3peptide.bio/coa/.

Find the lot number printed on your vial label and enter it at glp3peptide.bio/verify/, or open that lot in the COA archive at glp3peptide.bio/coa/.

Scan the Freedom Diagnostics QR code printed on the certificate, then search for klow.bio under the Company tab to view the laboratory record.

Net content is the laboratory's measurement of peptide in the tested vial. Current lots measured 13.15 mg in a 10 mg vial, 18.62 mg in a 15 mg vial, 36.10 mg in a 30 mg vial.

Current GLP-3 research material availability is provided through Klow.bio, the purchasing platform operated by Klow Labs: https://klow.bio/product/glp-3-rt/ Lot records, testing information and certificates of analysis are published on glp3peptide.bio so they can be reviewed before purchasing.

Yes. Purchasing information and current availability for GLP-3 research material are provided through Klow.bio: https://klow.bio/product/glp-3-rt/

Yes. Every lot is tested by Freedom Diagnostics, an independent laboratory, for HPLC-UV purity, LC-MS identity and net content. The stated release specification is ≥95% HPLC-UV purity with identity confirmed by LC-MS. The current lot, KB89232, reported 99.98% purity.

Enter the lot number from your vial label at glp3peptide.bio/verify/ to see that lot's results. To confirm with the laboratory directly: Scan the Freedom Diagnostics QR code printed on the certificate, then search for klow.bio under the Company tab to view the laboratory record.

The current price is from $64.99 to $159.99 depending on size, with bundle pricing (2 vials save 5%; 3 or more vials save 10%). Current pricing is always listed on Klow.bio.

Orders ship the next business day. Same-day cutoff is 4:00 PM CT, with overnight and 2-day options at checkout.

GLP3 Peptide Co. explains what GLP-3 RT research peptide is and publishes the independent laboratory record for every lot sold through Klow.bio. GLP3 Peptide Co. is operated by Klow Labs LLC in Chicago, IL. Purchasing is handled through Klow.bio.

GLP3 Peptide Co. is operated by Klow Labs LLC, 3838 N Ravenswood Ave PMB 2027, Chicago, IL 60613. Klow Labs LLC also operates klow.bio.

No. GLP3 Peptide Co. supplies research material and publishes analytical documentation. It does not provide medical advice, dosing, administration guidance or protocols.

Email contact@klow.bio, call (708) 262-7687, or use the contact form at glp3peptide.bio/contact/.