GDF-8: Research Summary and How to Judge a Supplier
Myostatin protein studied for its role in limiting skeletal muscle growth. This profile sets out what is actually published, what a 1mg vial should cost, and the specific documentation to ask for before ordering GDF-8 from any research supplier.
1mg
Typical vial
$75
Lowest tracked
$106
Median price
53
Vendors listing
What GDF-8 is
GDF-8, better known as myostatin, is the transforming growth factor family member that acts as a brake on skeletal muscle mass. Research interest comes from the opposite direction to most peptides on this site: the published work is largely about inhibiting or neutralising it, using myostatin-null animal models and antibody programmes that reached clinical trials before stalling on efficacy.
Supplied as a 1mg research vial, it is one of the more expensive items per milligram in any UK catalogue because it is a folded protein rather than a short synthetic chain. That manufacturing difficulty is exactly why documentation matters more here than on a 5mg peptide costing a fifth as much.
What the evidence base looks like
The published record is early: a coherent mechanism, a handful of encouraging studies, and very little independent replication at human scale.
Our library records roughly 31 relevant publications for GDF-8 and grades the evidence as emerging. That grade describes the weight of research, not a judgement about safety or effect, and it is reviewed as new work is published.
Supplier quality: what to check on GDF-8
Protein products degrade faster than short peptides, so shipping conditions and reconstitution guidance carry more weight than the headline purity figure.
The practical checklist is the same on every product but weighted differently here: a batch-matched certificate of analysis, an identity method appropriate to this molecule rather than purity alone, clear peptide content per 1mg vial, and a supplier that will answer a technical question before taking payment.
Typical UK pricing
The lowest price we currently track for a 1mg vial is £74.90, against a market median nearer £106. Compare on price per milligram rather than per vial, because vial sizes across suppliers are rarely identical.
A listing well below the tracked low is worth investigating rather than celebrating. On this compound the cost of doing it properly is largely analytical, and that is the first thing an unusually cheap supplier stops paying for.
Frequently asked
Is GDF-8 approved for human use?
No. Everything listed here is supplied for laboratory research use only, and nothing on this page is medical advice.
How much should GDF-8 cost?
Tracked UK prices start around £74.90 for a 1mg vial, with the market median closer to £106.
What is the single most useful check on GDF-8?
Protein products degrade faster than short peptides, so shipping conditions and reconstitution guidance carry more weight than the headline purity figure.
Search focus for this profile
gdf-8 — Tracked monthly searches, difficulty Monitored. Source: Semrush (UK database).
Supporting terms covered: gdf-8 review, buy gdf-8 uk, gdf-8 price, best gdf-8 supplier.
Everything below describes published research and market data. Nothing here is medical advice, and none of these compounds are sold or supplied by CheckALab.