Peptide Sciences is extremely overpriced garbage. Here's some recent independent testing of their Reta. Please excuse the poor quality screenshot, the table scrolls left to right and I couldn't capture it all.
View attachment 334821
Here's the left side of the table. All are from this year or late last year.
View attachment 334822
Listening to their justification as to why they do in house only and not third party potency and purity testing is laughable. They obviously don't want accountability, and know they're selling poor quality, and even totally fake, products.