THE INGREDIENT, IN FOCUS
A binding protein with several forms and many roles.
Follistatin is a protein that binds signalling molecules such as activins. It is much larger than many short peptides in research catalogues. Different forms, including forms often called FST 288 and FST 315, should not be collapsed into a single unnamed substance.
The biology, in plain words.
Follistatin is a protein that binds signalling molecules such as activins. It is much larger than many short peptides in research catalogues. Different forms, including forms often called FST 288 and FST 315, should not be collapsed into a single unnamed substance.
A molecule’s role in a pathway is one part of the story. A useful medical claim must also show a meaningful result in people, with harms and follow-up reported. A change in a lab measurement does not automatically mean better health.
What the studies found.
Original isolation and structural work helped establish follistatin’s relationship with reproductive hormone signalling. Experiments on cells and related pathways do not establish a safe muscle-building product. Blocking a signal in a model can have wider effects that a simple benefits list misses.
Details that change the comparison.
A seller’s word follistatin does not establish the form, sequence, biological activity or tested batch identity. Check those details before comparing pack amounts. A protein product and a gene-delivery intervention are also fundamentally different things.
Compare the complete ingredient record and the actual pack size. If a form, amount or batch fact is missing, it remains unknown. A lower price is not proof of quality, and a price per mg is a pack comparison rather than a dose recommendation.
Sources behind this profile.
Sources checked . Written by GotPeptide. No independent clinician review.