Skip to content
Research/Peptides/Follistatin 315

Follistatin 315

FST315. 315-amino acid glycoprotein. Inhibits myostatin and activin A. Promotes muscle growth and fat reduction. Myostatin inhibitor, anabolic.

Intelligence Profile

Safety Profile

Based on the available evidence, the safety profile of Follistatin 315 is largely unknown due to extremely limited clinical data.

Known Side Effects

Evidence is very thin. No human clinical trials were identified that specifically evaluate the safety of Follistatin 315. The available research consists primarily of preclinical studies in mice and in vitro experiments, which cannot reliably predict human safety outcomes.

One study from 2019 detected follistatin 344 (a related compound) in black market products, suggesting potential for contamination or adulteration issues with non-pharmaceutical follistatin preparations, but this does not directly inform us about Follistatin 315 safety.

Contraindications

No established contraindications have been identified in the literature reviewed. This absence of data should not be interpreted as evidence of safety, but rather reflects the lack of systematic human safety studies.

Drug Interactions

No drug interactions have been characterized for Follistatin 315 in human studies. The mechanism of action involves modulation of activin and myostatin signaling pathways, which could theoretically interact with other therapies affecting muscle growth, bone metabolism, or inflammatory processes, but specific interactions remain unstudied.

Populations That Should Avoid Use

Given the complete absence of human safety data, all populations should avoid Follistatin 315 until proper clinical trials establish its safety profile. This is particularly important for:

  • Pregnant or breastfeeding women
  • Children and adolescents
  • Individuals with pre-existing medical conditions
  • Those taking other medications

Critical Evidence Gaps

The current evidence base consists entirely of animal studies and in vitro research. Key safety parameters that remain completely unknown include:

  • Human toxicity thresholds
  • Appropriate dosing ranges
  • Long-term safety effects
  • Individual variation in response
  • Serious adverse events profile

Medical Disclaimer: This information is for educational purposes only and should not be considered medical advice. Consult with a qualified healthcare provider before considering any experimental therapies.

The lack of human clinical data makes it impossible to provide a comprehensive safety assessment for Follistatin 315. Any use would be considered experimental and potentially dangerous without proper clinical oversight.

Free account required

Safety profile requires a free AXIFI account to access clinical data, safety profiles, and research papers.