Free library
The peptide & supplement tracking library
63 structured, source-backed entries — 24 peptides plus medications, and 24 supplements — covering research status, how each compound works, what people commonly track, and the questions worth bringing to a clinician. Free to read. Education only, not medical advice.
Reta is a tracking and education tool — not a medical provider. Nothing here is a diagnosis, treatment, prescription, or dosing recommendation. Peptides and medications should only be used under the direction of a licensed clinician. Talk to a qualified clinician before starting, stopping, combining, or changing anything. Many compounds below are not FDA-approved for human use; some are investigational or sold through unregulated channels where purity and dosing are not guaranteed.
Myostatin Inhibitors Overview
otherMyostatin inhibitors aim to reduce signaling that limits muscle growth. The category includes clinical-stage medicines for muscle-wasting disorders, older discontinued programs, animal research tools, and community-discussed research peptides.
Read the full entryCreatine monohydrate
supplementCreatine monohydrate is among the most-studied supplements, commonly used to support strength, training output, and muscle over time. Inexpensive and well tolerated by most people; consistency matters more than timing.
Read the full entryProtein powder
supplementA convenient way to close the gap to a daily protein target — especially useful when appetite is suppressed and whole-food volume is hard. Whey, casein, and plant blends all work; total daily protein matters most.
Read the full entryCollagen peptides
supplementHydrolyzed collagen commonly tracked for joint comfort, skin, and connective-tissue support, often taken with vitamin C. Evidence is moderate for joint comfort and skin hydration; it is not a complete protein for muscle purposes.
Read the full entryEAAs / BCAAs
supplementFree-form amino acids marketed around training. If daily protein is already adequate, they add little — most useful for training fasted or when whole protein isn't practical. EAAs (all nine essentials) are generally preferred over BCAAs alone.
Read the full entryPre-workout
supplementMulti-ingredient formulas usually built around caffeine, often with citrulline and beta-alanine. Effects and stimulant content vary enormously between products; the caffeine dose is the number to actually track.
Read the full entryMissing something from the library?
Suggest a compound, stack, correction, source, or product idea. No account needed.
Want to track your own protocol?
The library is free for everyone. Personal tracking — clinician-directed protocols, supplement stacks, reminders, dose logs, and insights — is available in Reta's Public Beta.
Members can also organize commonly discussed combinations, or “stacks,” into structured tracking routines — keeping protocols, supplements, reminders, and progress notes in one place, without replacing clinician guidance.