Overview
Sports Technology Labs (STL) earns its rank through genuine commitment to third-party testing transparency. The company publishes CoAs prominently on their website, and their core products have been independently verified by multiple community members. Their expanding peptide catalog includes the most commonly researched compounds, and the testing documentation is credible.
The limitation holding STL back is catalog depth. Researchers needing specialized or less common peptides will often find gaps. Technical documentation beyond CoAs — such as reconstitution guidance or storage stability data — is sparse compared to top-tier vendors. STL is a solid choice for researchers whose needs fall within their core catalog.
Community Reviews
Reviews aggregated from verified research community members.
Dr. M. Calloway
Research Biochemist · March 2025
★★★★★
STL is one of the more trustworthy vendors out there. I appreciate that their CoAs are publicly posted and easy to find — that alone puts them ahead of most. Their peptide selection is more limited than I need, but what they do carry is good quality. Reliable shipping, no surprises.
✔ Verified Purchaser
P. Nguyen
Graduate Researcher · February 2025
★★★★★
Good company with honest practices. The issue is purely catalog coverage — they didn't have two of the five peptides I needed, so I had to split my order. When they do have what you need, the product is solid and arrives on time.
✔ Verified Purchaser
A. Whitmore
Independent Research Consultant · January 2025
★★★★★
I use STL as a secondary vendor when my primary is out of stock. Their quality on the basics — BPC-157, TB-500 — is reliable. Customer service is professional. The site could use more technical depth for research buyers.
✔ Verified Purchaser
Dr. F. Torres
Molecular Biology Lab · April 2025
★★★★★
Solid reputation well-deserved. Their commitment to posting CoAs publicly sets a good standard for the industry. I'd love to see their peptide catalog expand and include more detailed product pages with literature summaries.
✔ Verified Purchaser