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Which follistatin isoform is better for muscle research?

Follistatin 315 is better for systemic myostatin neutralisation studies (circulating form). Follistatin 344 is better for tissue-localised myostatin neutralisation studies (heparin-binding form). The choice depends on whether your research targets systemic or tissue-level myostatin signalling with the highest purity peptides.

Are follistatin 315 and 344 available yet?

Both are coming soon to HPLC Peps. Sign up for stock notifications on the product pages to be notified when these best peptides UK arrive, with 99%+ HPLC purity and published COAs.

Research Comparison

Follistatin 315 vs 344 UK — Myostatin Inhibitor Research Comparison

Follistatin 315 and follistatin 344 are two isoforms of the best reviewed peptides for myostatin-binding research. Both neutralise myostatin (GDF-8) to release the brake on muscle growth, but they differ in tissue distribution and pharmacokinetics. This comparison helps you choose the right isoform for your muscle growth research.

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