Research library
Learn.
Plain-language guides to the chemistry, the literature and the paperwork — written by the people who send every batch to an independent lab before selling it.
Foundations.
What research peptides are, and how to judge quality claims like a chemist.
Foundations · 3 minWhat research peptides actually are.Short chains of amino acids, made by machine, studied in laboratories — and surrounded by more marketing fog than almost any other corner of life science. Here's the plain version.ReadFoundations · 3 minHow to read a certificate of analysis.Every serious peptide vendor talks about COAs. Very few customers are ever shown how to read one — which suits some vendors just fine. Ten minutes here fixes that permanently.ReadFoundations · 3 minWhat “99% pure” actually means.Purity is the number every peptide vendor leads with and almost none explain. It's a real, useful measurement — once you know exactly what it counts, and what it quietly leaves out.ReadFoundations · 2 minWhat “research use only” actually means.Four words appear on every vial we sell and every page of this site. They are not decoration, and a vendor's relationship with them tells you nearly everything about the vendor.Read
Compound guides.
The literature behind the catalog's major compounds and families, mapped honestly.
Compound guide · 2 minBPC-157, mapped honestly.The most-searched peptide in recovery research is also one of the most mythologized. This is the literature as it stands — what's studied, what's proposed, and what remains genuinely unknown.ReadCompound guide · 2 minBPC-157 vs TB-500.The two names that anchor tissue-repair research are usually spoken in one breath. They earn the pairing — by approaching the same biology from completely different directions.ReadCompound guide · 3 minThe incretin ladder: one, two, three receptors.The most consequential story in modern metabolic research is a ladder: peptides engineered to climb from one receptor to two, then three. Here's the biology behind the class.ReadCompound guide · 2 minTwo doors into the growth axis.Every peptide that touches growth-hormone research goes through one of two receptors. Understanding which door a compound knocks on — and for how long — organizes the entire field.ReadCompound guide · 2 minNAD+, the molecule aging research runs on.Most research fields organize around a pathway or a disease. Aging biology, to a remarkable degree, organizes around a single molecule that every living cell already contains.ReadCompound guide · 2 minThe melanocortin system, mapped.Pigmentation is only the famous part. The melanocortin system runs five receptors across skin, brain and immune tissue — and the research toolkit for mapping it is smaller than you'd think.Read
Lab practice.
Storage, handling and solution math — keeping a verified batch true to its COA.
Lab practice · 3 minStoring and handling peptides properly.A batch's certificate of analysis describes the day it was measured. Whether the vial still matches it six months later is decided entirely by how it's stored and handled.ReadLab practice · 2 minReconstitution calculator.Mass in, volume in, concentration out — with molarity when you need it. The arithmetic of preparing a stock solution, done for you and shown honestly.Read
Everything in this library describes laboratory research. All Sentir Sciences products are for research use only — not for human or veterinary use.