This product is solely intended for research purposes as a chemical compound. Its designation permits its use exclusively for in vitro testing and laboratory experimentation. All information regarding this product provided on our website is purely educational. By law, any form of bodily introduction of this product into humans or animals is strictly prohibited. It should only be handled by professionals who are licensed and qualified. This product is neither a drug, food, nor cosmetic, and must not be misrepresented, misused, or mislabeled as such.
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| Cost per milligram | $5.25 – $6.70 |
| Purity | 99.60% |
| Certified Endotoxin-safe | Yes |
| Independently Tested | Yes |
Authors: Yawei Tian, Huiming Liu, Xiaoxue Bao, Yukun Li
Source: https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2025.1539411/full
This in vitro study investigated the effects of semaglutide on bone-derived mesenchymal stem cells (BMSCs). The results demonstrated that semaglutide promotes BMSC proliferation and osteogenic differentiation. This was evidenced by increased alkaline phosphatase (ALP) activity, enhanced mineralization, and upregulation of osteogenic markers such as osteocalcin (OCN) and Runt-related transcription factor 2 (RUNX2). RNA sequencing analysis revealed the activation of the Wnt/LRP5/β-catenin signaling pathway. The study confirmed that semaglutide’s pro-osteogenic effects are mediated through this pathway by using a Wnt inhibitor (DKK1) and activator (LiCl).
This laboratory study explored how the drug semaglutide affects stem cells taken from bone marrow. The researchers found that semaglutide encourages these stem cells to multiply and transform into bone-forming cells. This was observed through various experiments that showed an increase in the activity of enzymes and proteins essential for bone formation. The study identified a specific communication pathway within the cells, known as the Wnt pathway, which is activated by semaglutide to produce these bone-strengthening effects. This suggests that semaglutide could have potential benefits for bone health by promoting the generation of new bone tissue.
Authors: Emmalie R. Spry, Kipton B. Travis, Kayla J. Ragland, Alexa J. Klein, John M. Zimmerman, Roger A. Vaughan
Source: https://www.sciencedirect.com/science/article/abs/pii/S0303720725001807
This study investigated the effects of semaglutide on C2C12 myotubes in an in vitro model of insulin resistance. The researchers found that while semaglutide did not alter insulin sensitivity, as measured by pAkt:Akt ratio, it did significantly increase the expression of genes associated with mitochondrial biogenesis and function, including PGC-1α, and TFAM. Furthermore, semaglutide treatment led to an increase in mitochondrial content and density, as well as an increase in maximal mitochondrial respiration. These findings suggest that semaglutide may improve metabolic health by enhancing mitochondrial function in skeletal muscle, independent of its effects on insulin signaling.
In this lab experiment, scientists looked at how the drug semaglutide affects muscle cells that have been made resistant to insulin, similar to what happens in type 2 diabetes. They discovered that while semaglutide didn’t make the cells more responsive to insulin, it did boost the number and activity of mitochondria, which are the ‘powerhouses’ of the cells. This means that semaglutide might help improve metabolism by making muscle cells better at producing energy, even if it doesn’t directly fix the insulin resistance problem.
Authors: Yan-fang Chang, Di Zhang, Wei-min Hu, Dong-xing Liu, Lin Li
Source: https://www.sciencedirect.com/science/article/abs/pii/S0967586820315332
This in vitro study investigated the neuroprotective effects of semaglutide in a SH-SY5Y cell line model of Alzheimer’s disease, induced by amyloid-β 25-35 (Aβ25-35). The results showed that semaglutide treatment restored cell viability that was inhibited by Aβ25-35. Mechanistically, semaglutide was found to enhance autophagy, as indicated by increased expression of autophagy-related proteins such as LC3-II, Atg7, and Beclin-1, and decreased expression of p62. Furthermore, semaglutide inhibited apoptosis by increasing the Bcl-2/Bax ratio. These findings suggest that semaglutide protects against Aβ-induced neurotoxicity by promoting autophagy and suppressing apoptosis.
In this laboratory study, scientists used a cell model to mimic the effects of Alzheimer’s disease on brain cells. They found that the drug semaglutide could protect these cells from damage. Semaglutide appeared to work in two main ways: first, it boosted the cells’ natural ‘recycling’ process, called autophagy, which helps clear out harmful substances. Second, it prevented the cells from self-destructing, a process known as apoptosis. This research suggests that semaglutide could have a protective effect on brain cells, which might be relevant for neurodegenerative diseases like Alzheimer’s.
Storage:
All of our manufacturing partners produce peptides using the Lyophilization (Freeze Drying) process, ensuring products maintain stability for shipping and storage for 12+ months.
In lyophilized form, they are shelf-stable for many weeks. However, for long-term storage, it is recommended to store them in the freezer.
We often hear concerns about the standard “discard after 28 days of first use” disclaimer. Don’t worry, this has nothing to do with studies regarding the efficacy of specific peptides. 28 days is the FDA requirement for producers of multi-use vials to prove their bacteriostatic maintains efficacy. This minimum requirement becomes the de facto standard.
In our experience, if you use proper sterile procedures and refrigerated storage, you can continue sampling from the same reconstituted vial for 3+ months.
Peptide Partners is committed to providing high-purity peptides at wholesale prices by frequently auditing its manufacturing partners using third-party laboratories. Independent analysis is vital to ensuring the quality and authenticity of your research peptides. Never trust a supplier that doesn’t submit to third-party testing. Never trust a certification that cannot be independently verified. All of the certificates that we provide can be validated on the third-party laboratory’s website.
Each product description contains a Manufacturer ID corresponding to the producer of that product. The table below contains the most recent third-party analyses for all manufacturers and peptides listed on Peptide Partners.
| Peptide | Batch Id | Manufacturer | Date | Purity | Laboratory | |
|---|---|---|---|---|---|---|
| Retatrutide | RT202602 | WF03 | 2026-01-13 | 99.63% | TrustPointe | View File |
| Semaglutide | SM202601 | MZ21 | 2026-01-10 | 99.70% | TrustPointe | View File |
| Cagrilintide | CAG202601 | MZ21 | 2026-01-10 | 99.33% | TrustPointe | View File |
| Tesamorelin | TES202601 | WF03 | 2025-12-29 | 99.71% | TrustPointe | View File |
| BPC-157 | BP202512 | WF03 | 2025-12-29 | 99.46% | TrustPointe | View File |
| BPC-157/TB-500 | BB202512 | WF03 | 2025-12-29 | 99.64% | TrustPointe | View File |
| GHK-Cu | GK202512 | SH07 | 2025-12-19 | 99.79% | BioRegen | View File |
| MOTS-c | MC202512 | WF03 | 2025-12-22 | 99.89% | BioRegen | View File |
| Retatrutide | RP260130 | VI32 | 2025-12-22 | 99.72% | TrustPointe | View File |
| SS-31 | SS202512 | WF03 | 2025-12-19 | 99.70% | TrustPointe | View File |
| Retatrutide | RP202601 | DF05 | 2025-12-22 | 99.63% | TrustPointe | View File |
| Ipamorelin/CJC-1295 (No DAC) | CJIP202512 | WF03 | 2025-12-09 | 99.80% | TrustPointe | View File |
| Retatrutide | RP202511 | DF05 | 2025-12-19 | 99.73% | TrustPointe | View File |
| Retatrutide | RP20251020 | DF05 | 2025-11-10 | 99.33% | TrustPointe | View File |
| Retatrutide | RP20251001 | DF05 | 2025-10-13 | 99.86% | TrustPointe | View File |
| Tirzepatide | TZ20250915 | DF05 | 2025-10-03 | 99.74% | TrustPointe | View File |
| Retatrutide | RP20250929 | VI32 | 2025-10-03 | 99.47% | TrustPointe | View File |
| Humanin | HP20250805 | WF03 | 2025-09-19 | 99.92% | BioRegen | View File |
| MOTS-c | YC20250807 | WF03 | 2025-09-19 | 99.87% | BioRegen | View File |
| DSIP | DS20250820 | SH07 | 2025-09-19 | 99.88% | BioRegen | View File |
| SS-31 | SY20250806 | WF03 | 2025-09-19 | 99.70% | BioRegen | View File |
| CJC/Ipamorelin | CI20250805 | WF03 | 2025-09-11 | 99.84% | TrustPointe | View File |
| BPC-157 | BP20250808 | WF03 | 2025-09-05 | 99.99% | TrustPointe | View File |
| Sermorelin | SM20250723 | WF03 | 2025-08-27 | 99.84% | BioRegen | View File |
| Tesamorelin | TS20250722 | WF03 | 2025-08-22 | 99.10% | TrustPointe | View File |
| CJC-1295 ND | CJ20250724 | WF03 | 2025-08-20 | 99.43% | TrustPointe | View File |
| Semaglutide | SM20250801 | EJ12 | 2025-08-20 | 99.34% | TrustPointe | View File |
| Ipamorelin | IP20250721 | WF03 | 2025-08-15 | 99.64% | TrustPointe | View File |
| GHK-Cu | CU20250717 | SH07 | 2025-08-09 | 99.73% | BioRegen | View File |
| Tirzepatide | TZ20250730 | EJ12 | 2025-08-08 | 99.41% | TrustPointe | View File |
| NAD+ | ND20250503 | SH07 | 2025-07-31 | 99.76% | BioRegen | View File |
| VIP | VP20250511 | SH07 | 2025-07-31 | 99.42% | BioRegen | View File |
| Retatrutide | CD20250708 | SH07 | 2025-07-25 | 99.42% | TrustPointe | View File |
| BPC/TB500 | BB20250630 | SH07 | 2025-07-17 | 99.52% | TrustPointe | View File |
| TB500 (TB4) | TB20250614 | SH07 | 2025-07-17 | 99.68% | TrustPointe | View File |
| Peptide | Batch Id | Manufacturer | Date | USP Conformation | Laboratory | |
|---|---|---|---|---|---|---|
| Ipamorelin | IP202601 | WF03 | 2026-01-13 | Conforms | TrustPointe | View File |
| TB500 | TB202601 | WF03 | 2026-01-13 | Conforms | TrustPointe | View File |
| Retatrutide | RT202602 | WF03 | 2026-01-13 | Conforms | TrustPointe | View File |
| Semaglutide | SM202601 | MZ21 | 2026-01-10 | Conforms | TrustPointe | View File |
| Cagrilintide | CAG202601 | MZ21 | 2026-01-10 | Conforms | TrustPointe | View File |
| Tesamorelin | TES202601 | WF03 | 2025-01-06 | Conforms | TrustPointe | View File |
| BPC-157 | BP202512 | WF03 | 2025-12-30 | Conforms | TrustPointe | View File |
| BPC-157/TB-500 | BB202512 | WF03 | 2025-12-30 | Conforms | TrustPointe | View File |
| Retatrutide | RP260130 | DF05 | 2025-12-22 | Conforms | TrustPointe | View File |
| SS-31 | SS202512 | WF03 | 2025-12-19 | Conforms | TrustPointe | View File |
| Retatrutide | RP202601 | DF05 | 2025-12-22 | Conforms | TrustPointe | View File |
| Ipamorelin/CJC-1295 (No DAC) | CJIP202512 | WF03 | 2025-12-08 | Conforms | TrustPointe | View File |
| Retatrutide | RP202511 | DF05 | 2025-11-10 | Conforms | TrustPointe | View File |
| Retatrutide | RP20251020 | DF05 | 2025-11-10 | Conforms | TrustPointe | View File |
| Retatrutide | RP20251001 | DF05 | 2025-10-13 | Conforms | TrustPointe | View File |
| Tirzepatide | TZ20250915 | DF05 | 2025-10-03 | Conforms | TrustPointe | View File |
| Retatrutide | RP20250929 | VI32 | 2025-10-03 | Conforms | TrustPointe | View File |
| Humanin | HP20250805 | WF03 | 2025-09-19 | Conforms | BioRegen | View File |
| MOTS-c | YC20250807 | WF03 | 2025-09-19 | Conforms | BioRegen | View File |
| DSIP | DS20250820 | SH07 | 2025-09-19 | Conforms | BioRegen | View File |
| SS-31 | SY20250806 | WF03 | 2025-09-19 | Conforms | BioRegen | View File |
| CJC/Ipamorelin | CI20250805 | WF03 | 2025-09-03 | Conforms | TrustPointe | View File |
| BPC-157 | BP20250808 | WF03 | 2025-09-03 | Conforms | TrustPointe | View File |
| Bacteriostatic Water | BAC20250807 | SH07 | 2025-08-27 | Conforms | BioRegen | View File |
| Tesamorelin | TS20250722 | WF03 | 2025-08-20 | Conforms | TrustPointe | View File |
| CJC-1295 ND | CJ20250724 | WF03 | 2025-08-20 | Conforms | TrustPointe | View File |
| Sermorelin | SM20250723 | WF03 | 2025-08-20 | Conforms | TrustPointe | View File |
| Semaglutide | SM20250801 | EJ12 | 2025-08-20 | Conforms | TrustPointe | View File |
| Ipamorelin | IP20250721 | WF03 | 2025-08-11 | Conforms | TrustPointe | View File |
| GHK-Cu | CU20250717 | SH07 | 2025-08-08 | Conforms | TrustPointe | View File |
| Tirzepatide | TZ20250730 | EJ12 | 2025-08-04 | Conforms | TrustPointe | View File |
| NAD+ | ND20250503 | SH07 | 2025-07-29 | Conforms | TrustPointe | View File |
| VIP | VP20250511 | SH07 | 2025-07-29 | Conforms | TrustPointe | View File |
| Retatrutide | CD20250708 | SH07 | 2025-07-24 | Conforms | TrustPointe | View File |
| BPC/TB500 | BB20250630 | SH07 | 2025-07-17 | Conforms | TrustPointe | View File |
| TB500 (TB4) | TB20250614 | SH07 | 2025-07-17 | Conforms | TrustPointe | View File |
| Peptide | Batch Id | Manufacturer | Date | USP Conformation | Laboratory | |
|---|---|---|---|---|---|---|
| BPC-157 | BP202512 | WF03 | 2026-01-08 | Conforms | TrustPointe | View File |
| BPC-157/TB-500 | BB202512 | WF03 | 2026-01-08 | Conforms | TrustPointe | View File |
| Tirzepatide | TZ20250915 | DF05 | 2025-12-03 | Conforms | TrustPointe | View File |
| TB500 (TB4) | TB20250614 | SH07 | 2025-11-24 | Conforms | TrustPointe | View File |
| BPC-157 | BP20250808 | WF03 | 2025-11-12 | Conforms | TrustPointe | View File |
| BPC/TB500 | BB20250630 | SH07 | 2025-11-12 | Conforms | TrustPointe | View File |
| CJC-1295 ND | CJ20250724 | WF03 | 2025-11-12 | Conforms | TrustPointe | View File |
| GHK-Cu | CU20250717 | SH07 | 2025-11-12 | Conforms | TrustPointe | View File |
| Ipamorelin | IP20250721 | WF03 | 2025-11-12 | Conforms | TrustPointe | View File |
| Retatrutide | RP20251020 | DF05 | 2025-11-12 | Conforms | TrustPointe | View File |
| Sermorelin | SM20250723 | WF03 | 2025-11-12 | Conforms | TrustPointe | View File |
| SS-31 | SY20250806 | WF03 | 2025-11-12 | Conforms | TrustPointe | View File |
| TB500 (TB4) | TB20250614 | SH07 | 2025-11-12 | Conforms | TrustPointe | View File |
| Tesamorelin | TS20250722 | WF03 | 2025-11-12 | Conforms | TrustPointe | View File |
| Tirzepatide | TZ20250730 | EJ12 | 2025-11-12 | Conforms | TrustPointe | View File |
When obtaining research peptides, it is essential to validate the authenticity of the Certificate of Analysis (COA). Certificate fraud runs rampant throughout the research peptide supply community. The two most common forms are doctored images and stolen certificates. You can check for these two by making sure the third-party laboratory’s website shows that the certificate belongs to the supplier and the values haven’t been doctored. TrustPointe Analytics provides a few simple rules for verification:
Not only must one remain vigilant about potentially fraudulent certificates, one must also be aware that there are third-party laboratories whose results cannot be considered reliable or scientifically valid. Unfortunately, there is significant evidence to suggest that one of the most popular third-party testing labs does not use scientifically sound methodologies and, in some cases, has fabricated results. There isn’t an easy remedy for this problem, but when labs are particularly bad, there tend to be a lot of discussion threads on various social platforms.
Our friends at TrustPointe have provided the following detailed explanation to help interpret the results of the endotoxin testing.
We use the Charles River Endosafe PTS system to test for bacterial endotoxins following USP <85> guidelines:
The following are suitability parameters that verify the system was working properly and the sample prep dilution is appropriate for accurate results. Peptides often interfere with endotoxin detection due to their tendency to bind or mask endotoxins, which can lead to inaccurate low results. To overcome this, samples are typically tested at a large dilution to reduce matrix interference and ensure reliable recovery and detection in compliance with USP <85>. If the dilution is not correct, the run will fail suitability and we’ll need to adjust the dilution to ensure accurate results. We provide the suitability data to customers for transparency and so they can be confident in the results.
USP <85> Sample CV %:
USP <85> Spike CV %:
USP <85> Spike Recovery
Thank you for choosing Peptide Partners.
NOTICE: All information provided above is strictly intended for educational and informational purposes. Our products are designed for research use solely and are not approved for human consumption. Please refrain from any form of ingestion.
By making a purchase from Peptide Partners, you acknowledge that you are acquiring Research Chemicals. Our products are exclusively intended for laboratory research purposes.
It is imperative that only qualified and licensed professionals handle this product. Under no circumstances should it be utilized as a drug, agricultural or pesticide product, food additive, or household chemical. Misrepresentation of this product for such purposes is strictly prohibited by law. All content on our website is provided for educational use exclusively. Any form of introduction into the human or animal body is illegal.