Troponin University
Follistatin-315 monograph
From Justin
Justin Harris — IFBB Pro coach
Written & affirmed by Justin Harris — August 20, 2026 · 10 min read
From Justin
Despite massive excitement at early research, this never really panned out as a bodybuilding tool; it is mostly a research biology story with a lot of hype layered on top. If someone is chasing a real-world muscle gain edge, the evidence for FS315 falls short of that for training, nutrition, or even better-studied pharmacology. The big issue is that the human dosing, PK, and safety picture is basically missing, so every claim beyond mechanism is shaky. If it is being sold as a ready-to-use hypertrophy peptide, treat that as marketing, not medicine. PubMed review
Justin Harris — IFBB Pro coach, Troponin Nutrition. The same coaching reasoning drives the TroponinIQ AI coach.
Follistatin-315 Monograph
This page preserves the structured raw monograph for TroponinIQ Base under the shared content policy. The content is factual reference material; it is not a production prompt or constant update. No Production target: directive was present in the source.
Curation Summary
- Class: Endogenous glycoprotein / myostatin and activin-binding antagonist; investigational biologic/gene-therapy target rather than approved drug
- Legal/regulatory status: Not FDA-approved. Not a controlled substance in the usual U.S. controlled-drug sense based on the sources reviewed, but it is a prohibited substance/method concern in sport because WADA’s Prohibited List covers prohibited substances and methods and includes myostatin-pathway related enhancement concepts; I did not find a text excerpt explicitly naming follistatin on the page content I could access, so the safest status is research-only and sports-prohibited-risk. WADA Prohibited List
- Routing: module 03 knowledge for mechanism, clinical/performance context, legal status, safety, and FAQ retrieval.
- Source hash: 479bce382f2075dab7aceb9efb280a2a96944f1ff9cc43686989038e025cb94a
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Sources
- [1]Troponin Nutrition knowledge base — Follistatin 315