Glossary
Lyophilised
Freeze-dried. Most research peptides are supplied as a lyophilised powder because the dry form is far more stable than a solution.
Further reading
- How to choose a research peptide supplier: a UK buyer's checklist
Ten checks to run before ordering research peptides: batch-matched CoAs, independent testing, transparent pricing, clear labelling and honest claims.
- Research peptide red flags: warning signs on supplier sites and CoAs
The patterns that separate documented suppliers from risky ones: missing batch data, perfect-looking numbers, human-use claims and pressure tactics.
- How to read a peptide Certificate of Analysis
What each line of a peptide CoA means, which checks matter most, and the red flags that suggest a document is decoration rather than evidence.
- Purity versus net peptide content: why 99% is not 99%
HPLC purity and net peptide content measure different things. Understand the gap, why vials contain counter-ions and water, and how it affects solution concentrations.
- How research peptides are made and tested
From solid-phase synthesis to preparative HPLC, freeze-drying and quality control: what happens between an amino acid sequence and a vial.
- Intranasal peptide delivery: what the research literature actually shows
Why peptides are studied as nasal formulations, the biological barriers involved, what is known about nose-to-brain transport, and why claims about nasal sprays deserve caution.