Saving this for reference. Top-tier content.
OP here — wow, did not expect this much response! Thank you all for the thoughtful replies on Thrift store.
To answer josh_phd_bmore: my doctor and I discussed the options and went with brand.
Quick update: I have noticed more improvement since posting this. Thanks again for the evidence-based discussion — this is exactly why I posted in a science-based community. 🙏
Sigma-Aldrich — Research-Grade Standards
Certified reference materials, analytical reagents, and research-grade standards for peptide verification. Trusted by laboratories worldwide.
Shop Reference StandardsSlightly tangential to Thrift store but PharmD_Rodriguez reminded me — has the insurance landscape changed recently?
I know it is not exactly on-topic but it seems related enough to ask here rather than starting a new thread. Apologies if this has been covered — I did search first.