LabFirst Peptides is one of the more open vendors we checked, with a named lab and lot-matched COAs, but its prices are mixed. As of October 19, 2026 it ships from Santa Ana, California, names Kovera as its testing lab and mentions endotoxin testing. GLP-class compounds and MOTS-c come in well below our index median. Several other peptides cost more, and many sizes were out of stock.
Notice: LabFirst Peptides' products are sold for in-vitro laboratory research only. They are not FDA-approved and not for human or animal use. This review covers supplier transparency and prices only. We didn't buy or test any products. Some vendors pay us a commission when you buy through our links. That never changes a score or a price ranking.
LabFirst Peptides at a glance
- Website: labfirstpeptides.com, live when checked on October 19, 2026.
- Based in: Santa Ana, CA.
- Company: no legal entity name or founding year published.
- Testing labs/COAs: Kovera named; COA page with lot numbers; endotoxin testing mentioned.
- Independent tests (Finnrick): we found no Finnrick tests for this vendor.
- Payment: not published on its site when we checked.
- Gate: none. The site says it has "no account gate" and shows each size's price and cost per milligram.
- Catalog: 30 peptide products listed.
- Checked: October 19, 2026.
Prices we checked
| Peptide | Size | Price | Per mg | vs index median |
|---|---|---|---|---|
| Retatrutide | 40mg | $204 | $5.10 | 34% below |
| Tirzepatide | 20mg | $125 | $6.25 | 4% above |
| Semaglutide | 20mg | $110 | $5.50 | 41% below |
| BPC-157 | 10mg | $75 | $7.50 | 25% above |
| BPC-157 + TB-500 blend | 40mg | $109 | $2.73 | 50% below |
| GHK-Cu | 100mg | $69 | $0.69 | 1% below |
| NAD+ | 1000mg | $110 | $0.11 | 15% below |
| MOTS-c | 40mg | $100 | $2.50 | 44% below |
| Ipamorelin | 5mg | $44 | $8.80 | 42% above |
| 5-Amino-1MQ | 50mg | $90 | $1.80 | 59% below |
Prices as listed on October 19, 2026. TB-500 (10mg, $75) and sermorelin were fully out of stock, as were several retatrutide, tirzepatide and semaglutide sizes. Cagrilintide and thymosin alpha-1 were also out of stock in every size. Compare retatrutide prices, semaglutide prices, BPC-157 prices and MOTS-c prices, or use our full price index.
Testing and COAs
LabFirst publishes a COA page and names Kovera as its lab. The site lists lot or batch numbers alongside the certificates, so you can match a report to a vial. It also mentions endotoxin testing. These are vendor-commissioned reports, named by the vendor and not verified by us.
What's missing: there are no independent Finnrick tests for this vendor yet, so there is no outside data to check the COAs against.
What we like
- A named testing lab (Kovera) and lot-matched COAs.
- Endotoxin testing mentioned.
- A published shipping origin (Santa Ana, CA) with tracked USPS shipping.
- Public prices with cost per milligram, no account needed.
- Low per-mg prices on retatrutide, semaglutide, MOTS-c and the BPC-157 + TB-500 blend.
What to watch
- No Finnrick tests found.
- No company name or founding year published.
- Many sizes out of stock, including all TB-500 and sermorelin.
- BPC-157, ipamorelin and thymosin alpha-1 priced above our index median.
How it compares
LabFirst is stronger than most on COA detail but has no independent test record yet. Compare it with all vendors we track, check peptide deals this week and see our ranked list.
Bottom line
LabFirst Peptides shows its lab, its lots and its location, which many vendors don't. Prices are good on GLP-class compounds and weaker elsewhere. Check stock and the COA lot before ordering.
