Retatrutide 40mg — freeze-dried, not pre-filled
Retatrutide is a synthetic peptide developed as a triple receptor agonist. It acts on the GLP-1, GIP and glucagon receptors. It is an investigational compound currently in clinical trials and is not licensed or approved for medical use in any jurisdiction.
Why freeze-dried matters for Retatrutide
Peptides degrade the moment they enter solution. Water attacks the peptide bonds directly (hydrolysis), dissolved oxygen reacts with amino acid side chains (oxidation), and individual molecules cluster over time (aggregation). Heat, light and time all accelerate these processes.
Almost every peptide pen on the market ships pre-filled. That means the compound has been sitting in solution through manufacturing, freight, customs, warehousing and delivery — often for weeks — before it reaches the researcher.
Our pens are supplied freeze-dried. The compound stays dry and chemically stable until the bacteriostatic water pen included in the kit is used to reconstitute it. The full stated quantity of peptide is present at the point of reconstitution, not a degraded fraction of it.
What is in the kit
- One freeze-dried Retatrutide pen — 40mg
- One bacteriostatic water pen — 2.0ml
- Needles
- Written reconstitution guide
Specification
- Format: freeze-dried peptide pen, reconstituted at point of use
- Peptide quantity: 40mg
- Bacteriostatic water: 2.0ml supplied separately in its own pen
- Pen: U60 pen format
- Storage: cool, dark and dry before reconstitution. Refrigerated once reconstituted.
The regulatory position
Retatrutide is investigational. It has not been authorised for medical use by the MHRA in the United Kingdom, the EMA in Europe, or the FDA in the United States. It is not a licensed medicine, it is not a food supplement, and it is not intended for human use.
Any seller presenting Retatrutide as an approved, licensed or medical product is misrepresenting it. Our pens are supplied strictly for laboratory research use.
Further reading
Understand why the format matters: Freeze-dried vs pre-filled peptide pens. Batch documentation: COA Library. Compound overview: Retatrutide research guide. How to read a COA: Buyer’s guide.
Supplied strictly for laboratory research use. Not for human consumption. Not intended to diagnose, treat, cure or prevent any disease. Purchasers must be 18 or older.