Department

Prescription Biologics (Reference Listings)

Reference listings for prescription hormones and aesthetic biologics, carried for completeness of the reference range rather than for general sale. The hormone side covers somatropin, HMG menotropins, regular human insulin, metformin and pharmaceutical-grade tesamorelin; the aesthetic side is a single entry, botulinum toxin type A. Everything in this department is subject to additional verification before an order is accepted, and lead times are longer than the rest of the catalog — contact the team first so we can confirm availability.

Little of this is a peptide in the sense the rest of the catalog uses the word. Somatropin is a 191-residue recombinant protein of about 22.1 kDa; HMG is a urinary-derived glycoprotein preparation whose potency is assigned by bioassay in international units rather than by mass (75 IU of FSH activity with 75 IU of LH activity per vial); insulin is a two-chain 5.8 kDa hormone supplied at 100 IU/mL; botulinum toxin type A is a roughly 150 kDa clostridial endopeptidase that cleaves SNAP-25, vacuum-dried in a single-use vial. Because several are expressed in potency units rather than milligrams — 1 mg of somatropin is about 3 IU, 1 mg of insulin about 28.8 IU — confirm which basis a quantity is stated in before specifying one. Metformin and tesamorelin are the two exceptions, listed by mass.