# PrimeGen Co.

> PrimeGen Co. is a United States supplier of lyophilized research peptides (branded PRIMEGEN LABS on the vial) sold strictly for laboratory research use. Every lot is RP-HPLC assayed and independently verified by third-party HPLC and mass spectrometry, with a lot-matched certificate of analysis available digitally.

PrimeGen Co. is a distributor, not a manufacturer. All inventory is warehoused and dispatched domestically from southern Virginia; orders ship within the United States only and typically arrive in 10-12 business days. Standard shipping is $5.99 and free on orders over $200. All sales are final — no returns.

Products are supplied as research chemicals. They are not drugs, dietary supplements, or cosmetics, are not approved for human or veterinary use, and must not be administered to humans or animals.

## Catalog

- [Research compounds](/compounds): Full catalog of 100+ research peptides, filterable by research area, strength, and price.
- [Categories](/categories): Compounds grouped by research area.
- [Weight management research](/categories/weight-management): GLP-1 and incretin-class compounds such as semaglutide, tirzepatide, retatrutide, and cagrilintide.
- [Recovery research](/categories/recovery): Compounds such as BPC-157 and TB-500.
- [Growth hormone research](/categories/growth-hormone): GHRH analogs and secretagogues such as CJC-1295, ipamorelin, and tesamorelin.
- [Longevity and cellular research](/categories/longevity): Compounds such as NAD+, epitalon, MOTS-c, and SS-31.
- [Skin and hair research](/categories/skin-hair): Compounds such as GHK-Cu.
- [Specialty compounds](/categories/specialty): Nootropic, immune, and other specialized research peptides.
- [Research stacks](/stacks): Lot-matched multi-compound research kits.
- [New arrivals](/new-arrivals): Most recently released lots.
- [Collections](/collections): Curated groupings of the catalog.

## Documentation

- [Certificates of analysis](/certificates): Third-party HPLC and mass spectrometry reports by product, with available, in-progress, and historical tabs.
- [Quality control](/quality-control): How lots are assayed, verified, and documented.
- [Laboratory standards](/standards): Handling, packaging, and documentation standards.
- [FAQ](/faq): 30+ answers on purity testing, reconstitution, storage, shipping, certificates, and research-use policy.

## Research library

- [Research library](/library): Educational guides on peptide chemistry, analysis, and handling.
- [What are research peptides?](/library/what-are-peptides): Introduction to peptides used in laboratory research.
- [Understanding lyophilized powders](/library/lyophilized-powders): Why peptides are supplied freeze-dried and what that means for handling.
- [Reconstitution basics](/library/reconstitution-basics): Diluent selection and technique for laboratory reconstitution.
- [Storage considerations](/library/storage-considerations): Temperature and stability guidance across the peptide classes.
- [Purity analysis and certificates](/library/purity-analysis-and-certificates): How HPLC and mass spectrometry purity figures are produced and read.

## Company and policies

- [About PrimeGen Co.](/about): Who we are and how lots are sourced and verified.
- [Contact](/contact): Laboratory support, bulk quotes, and documentation requests.
- [Shipping](/shipping): US-only shipping, 10-12 business day delivery, and rates.
- [Research use policy](/research-use-policy): Permitted use and buyer responsibilities.
- [Returns](/returns): All sales are final.

## Optional

- [Blog](/blog): Site updates and laboratory notes.
- [Privacy policy](/privacy)
- [Terms of service](/terms)