Peptide basics
What is known, and not known, about peptide safety
For most research peptides there is no long-term human safety record. Not a poor one — an absent one. Here is what that means.
Peptide basics
How to judge a peptide claim
Five questions that separate evidence from marketing, none of which need a science background. Apply them to this site too.
Peptide basics
What a peptide actually is
Amino acids, the bond that links them, and why the order they sit in decides everything that happens later.
Peptide basics
Peptides and steroids are not the same thing
Steroids add a hormone to your body. Peptides carry an instruction. The difference decides what each can and cannot do.
Peptide basics
How a peptide sends a signal
Shape decides everything. A peptide binds a receptor, a second messenger amplifies the signal, and a small amount goes a long way.
Peptide basics
Why peptides are injected rather than swallowed
Digestion exists to break peptides into amino acids. A swallowed peptide is taken apart before it can reach anything.