Have Questions? Email support@soracilabs.com
Tesamorelin and Ipamorelin: Two Receptors, One Axis
A GHRH analogue and a ghrelin-receptor agonist reach the same cell by two separate routes. That is the point of pairing them.
Have Questions? Email support@soracilabs.com
Category Research Guides
Laboratory research guides and reference material from Soraci Labs.
Peptide Molecular Weight, Moles and Net Peptide Content
Why two 10mg vials do not contain the same amount of anything except mass, and what net peptide content changes.
Peptide Solubility: Why a Vial Refuses to Dissolve
Net charge and hydrophobicity predict what will dissolve. Cloudiness is aggregation, not stubbornness.
Peptide Concentration Calculation After Reconstitution
Mass over volume, micrograms versus milligrams, and how U-100 syringe units map onto the number you actually worked out.
Glutathione: Why the Gamma Bond Is the Whole Trick
Glutathione is a tripeptide with one unusual bond that lets it survive inside the cell. The gamma linkage, the GSH/GSSG couple, and why the ratio is the only number that matters.
Peptide Storage and Stability: What Actually Degrades, and When
Peptides degrade through a small number of specific reactions — deamidation, oxidation, hydrolysis, disulfide scrambling, aggregation and adsorption. How to tell which apply to your sequence.
GHK-Cu: The Copper Is Not an Additive
GHK-Cu is a coordination complex, not a peptide with copper added. What that means for buffers, chelators, pH, the blue colour as a sanity check, and how to read the literature.
Kisspeptin: A Metastasis Suppressor That Turned Out to Run Puberty
Kisspeptin was found as a tumour metastasis suppressor and only later identified as the upstream regulator of GnRH release. Origins, nomenclature, KISS1R pharmacology and why kisspeptin-10 works.
TB-500 and Thymosin β4: The Fragment Is Not the Protein
Thymosin beta-4 is a 43-residue actin-sequestering protein. TB-500, as characterised analytically, is a seven-residue fragment of it. What that difference means for research.
Melanotan I, Melanotan II and PT-141: Receptor Selectivity Is the Whole Story
Melanotan I, Melanotan II and PT-141 are all alpha-MSH analogues, but they engage the five melanocortin receptors very differently. A structural and mechanistic comparison.