Overview
Blue Sky Peptide was once a reasonably well-regarded mid-tier vendor, and older community posts from 2019–2022 reflect a more positive picture. However, more recent reports paint a different story: shipping has slowed, quality control has become less consistent, and CoA availability has declined.
Several researchers have noted that CoAs provided are now outdated — sometimes by more than a year — and are not batch-specific. For research where results need to be reproducible and documented, these are significant red flags.
Community Reviews
Reviews aggregated from verified research community members.
P. Abrams
Independent Researcher · March 2025
★★★★★
Used to be my go-to secondary vendor. Not anymore. My last order took three weeks to arrive with no communication, and the CoA in the box was dated from 2023. That's not acceptable in 2025.
✔ Verified Purchaser
M. Johansson
Graduate Student, Biochemistry · February 2025
★★★★★
Sad to see this decline. A few years ago this was a solid option. Now it feels like the company has reduced investment in quality assurance. I've moved on.
✔ Verified Purchaser
Dr. L. Kim
Pharmacology Researcher · January 2025
★★★★★
The peptides I ordered performed adequately in our assays. But the CoA situation is inexcusable — an 18-month-old generic document doesn't tell me anything meaningful about the batch I received.
✔ Verified Purchaser
B. Okafor
Research Associate · April 2025
★★★★★
Three week shipping, no updates, outdated CoA. The product appeared to be of reasonable quality based on limited in-house testing but I cannot confirm that rigorously. Not worth the hassle when better-documented options exist.
✔ Verified Purchaser