Tesamorelin frequently asked questions

Tesamorelin is a synthetic 44-residue GHRH analog designed for activity at the growth hormone-releasing hormone receptor (GHRHR). Tesamorelin Research Supply supplies it as a lyophilized powder in 10 mg vials, with an independent certificate of analysis for every lot.

Tesamorelin research material is Tesamorelin 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.

The molecular formula is C221H366N72O67S and the average molecular weight is 5135.86 g/mol. The peptide has 44 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.

That the certificate names Tesamorelin, the HPLC purity against the stated specification, the identity method, the measured net content, and that the lot number on your vial matches a published lot. All of these are on this site.

Choose a size on the Tesamorelin page at Klow.bio (https://klow.bio/product/tesamorelin/) and check out there. Then match your vial's lot number on the verify page here.

Tesamorelin is analyzed with complementary methods: HPLC-UV for purity, HPLC-RTM for identity, a quantitative measurement for net content, and, where listed, LAL endotoxin and PCR microbial testing. Results are published per lot at buytesamorelinpeptide.com/coa/.

Every lot is tested by ILS Laboratories, an independent third-party analytical laboratory. Tesamorelin Research Supply does not test its own material for published certificates.

Current lots report HPLC-UV purity 99.54%, against a stated release specification of ≥95%. The most recent result is 99.54% for lot KB-77284.

By HPLC retention-time comparison with a reference standard (HPLC-RTM), performed by ILS Laboratories on every lot. The laboratory runs the sample and a reference standard of the named compound under the same HPLC conditions; identity is confirmed when the main peak elutes at the reference standard’s retention time.

Endotoxin and microbial testing are reported per lot. Every lot page in the COA archive states whether those tests were performed.

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 HPLC-RTM test does) or measure the amount of peptide in the vial (net content does).

A Tesamorelin 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. Tesamorelin Research Supply publishes every lot's COA as a readable page at buytesamorelinpeptide.com/coa/.

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

Go to portal.ils-lab.com (or scan the QR code on the certificate) and enter the lot's verification access code, listed on its lot page, to view the laboratory's own copy of the certificate.

Net content is the laboratory's measurement of peptide in the tested vial. Current lots measured 10.45 mg in a 10 mg vial.

Current Tesamorelin research material availability is provided through Klow.bio, the purchasing platform operated by Klow Labs: https://klow.bio/product/tesamorelin/ Lot records, testing information and certificates of analysis are published on buytesamorelinpeptide.com so they can be reviewed before purchasing.

Yes. Purchasing information and current availability for Tesamorelin research material are provided through Klow.bio: https://klow.bio/product/tesamorelin/

Yes. Every lot is tested by ILS Laboratories, an independent laboratory, for HPLC-UV purity, HPLC-RTM identity and net content. The stated release specification is ≥95% HPLC-UV purity with identity confirmed by HPLC retention-time match against a reference standard. The current lot, KB-77284, reported 99.54% purity.

Enter the lot number from your vial label at buytesamorelinpeptide.com/verify/ to see that lot's results. To confirm with the laboratory directly: Go to portal.ils-lab.com (or scan the QR code on the certificate) and enter the lot's verification access code, listed on its lot page, to view the laboratory's own copy of the certificate.

The current price is $59.99, 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.

Tesamorelin Research Supply is a buyer's guide to Tesamorelin research material: sizes, prices, the current lot's independent results and how ordering through Klow.bio works. Tesamorelin Research Supply is operated by Klow Labs LLC in Chicago, IL. Purchasing is handled through Klow.bio.

Tesamorelin Research Supply is operated by Klow Labs LLC, 3838 N Ravenswood Ave PMB 2027, Chicago, IL 60613. Klow Labs LLC also operates klow.bio.

No. Tesamorelin Research Supply 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 buytesamorelinpeptide.com/contact/.