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Learn
Guides and reference for reading the library, covering reconstitution and syringe-unit math, water and storage, a plain-language glossary, and the cited study database.
Guides
- Mixing peptides in one syringePlain answers to the everyday questions: can you combine peptides in one shot, which ones should never share a syringe, are pre-made blends fine, and how long a mix lasts.
- Reconstitution & syringe-unit mathHow to turn a vial of powder and a bottle of water into an exact number of units on an insulin syringe.
- Why growth-hormone peptides are harder to reconstituteGH-axis peptides have a reputation for clouding, clumping, and gelling in the vial. The cause is not one problem but four. The right fix depends on which one you are looking at.
- Bacteriostatic water for peptidesBacteriostatic water for peptides has benzyl alcohol, so one mixed vial takes many draws. See how much to add, when sterile water fits and why vials gel.
- Peptide storage & stabilityPeptides are fragile chains. How you store them, as powder and in solution, decides whether they stay intact.
- Peptides vs. SARMsThe two terms get lumped together in forums, but they are chemically and functionally different things.
- Are peptides legal? What the FDA says in 2026Are peptides legal in the US? Most hold no FDA approval. This page tracks the July 2026 panel vote and FDA's 2026 warning letters, as of October 2026.
- Peptide injections for weight loss, compared and dosedPeptide injections for weight loss compared side by side, with trial results and the doses people run. Retatrutide took off 25.0% of body weight in phase 3.
- Retatrutide side effects and how often they happenThe published trials give retatrutide side effects by dose. Gut effects are the most common, and they rise with the dose. Heart rate and skin sensitivity rise too.
Tools & reference
- GlossaryPlain-language definitions for every mechanism term, hormone, lab marker, and unit used across the library.
- Reconstitution calculatorConvert vial mg + bacteriostatic water into the exact units to draw on an insulin syringe.
- Half-life visualizerSee a peptide's serum level build to steady state and swing between peak and trough across a dosing schedule.
- Study databaseEvery primary source cited across the library, searchable and linked back to each peptide.
More guides in development
Further explainers are being written to the same cited, chemistry-verified standard as the library. Planned next:
- GH secretagogues explained
- The GLP-1 family
- Chronobiology of peptide dosing
- Khavinson short peptides