San Diego Peptides
Online seller of research peptides with a 58-item public catalog, a testing page naming MZ Biolabs.
As of October 19, 2026, San Diego Peptides publishes a public certificate-of-analysis (COA) or test-results page and names 1 outside testing lab (MZ Biolabs), and mentions endotoxin testing. We found no FDA warning letter naming it. We have not tested its products. FDA record.
- COA / test page
- Published
- Labs named
- MZ Biolabs
- FDA warning letter
- None found
- Listed $/mg
- $6.16–$16.00
- Catalog matched
- 48 compounds
Quality & trust signals
What San Diego Peptides' own pages say, with the page and the date we read it. Vendor claims are labeled as such; we have not independently tested products.
- Research-use-only notice
- Yes — the site says: “Help center Terms Privacy © 2026 San Diego Peptides For research use only Built in San Diego 0 Your order Your cart is empty”
- San Diego Peptides — site copyChecked
- HPLC mentioned
- Vendor copy: “Hover · COA HPLC · 215 nm 99.2% 0 min RT 14.8 · main peak 30 min Lot Just Tested Thymosin α-1”
- San Diego Peptides — site copyChecked
- Mass spectrometry mentioned
- Vendor copy: “Identity confirmation is typically done by mass spectrometry (MS) — the lab measures the molecular weight and confirms it matches”
- San Diego Peptides — site copyChecked
- Endotoxin testing mentioned
- Vendor copy: “Compound BPC-157 Identity Confirmed Purity (HPLC) 99.2% Endotoxin < 0.5 EU/mg Residual Solv”
- San Diego Peptides — site copyChecked
- Regulatory status: FDA warning letter
- None found naming San Diego Peptides in FDA's warning-letter records.
- FDA — warning lettersChecked
San Diego Peptides prices per mg
Prices listed on San Diego Peptides' own product pages on October 19, 2026, for the five compounds we track. Price per mg = listed price ÷ total mg (vials × mg per vial). Research use only.
Compounds in San Diego Peptides' catalog (48)
Products in San Diego Peptides' public catalog on October 19, 2026 that we matched to a compound profile. Listing is not verification of identity or purity.
5-Amino-1MQAdamaxAOD-9604ARA-290BPC-157BPC-157 + TB-500 blendCagrilintideCerebrolysinCJC-1295CJC-1295 + ipamorelinDihexaDSIPEpithalonFollistatin-344GHK-CuGHRP-2GHRP-6GLOW blendGlutathioneGonadorelinhCGHexarelinIGF-1 LR3IpamorelinIpamorelin + tesamorelin blendKisspeptin-10KLOW blendKPVL-carnitineLL-37Melanotan IIMOTS-cOxytocinPinealonPT-141RetatrutideSelankSemaglutideSemaxSermorelinSLU-PP-332SomatropinSS-31TB-500TesamorelinThymalinThymosin alpha-1Tirzepatide
San Diego Peptides FAQ
Does San Diego Peptides publish certificates of analysis (COAs)?
Yes. San Diego Peptides' site links a testing or COA page and names MZ Biolabs. Match any certificate to the lot number on the vial you receive.
Has the FDA sent San Diego Peptides a warning letter?
We found no FDA warning letter naming San Diego Peptides in fda.gov's warning-letter search on October 19, 2026.
How much does San Diego Peptides charge per mg?
On October 19, 2026 its listed prices ranged from $6.16 to $16.00 per mg across 32 products we could verify (BPC-157, TB-500, semaglutide, tirzepatide or retatrutide). See the table on this page.
Is San Diego Peptides legit?
We don't rate vendors. What we can verify: it links a testing page, it names 1 testing lab, and no FDA warning letter found. Its products are sold for research use only.