Biomacromol 24(5):21492163 Elzoghby AO et al (2020) Lactoferrin, a multi-functional glycoprotein: active therapeutic, drug nanocarrier & targeting ligand
doi: 10.1016/j.isci.2021.103382 46 BarnettA
They have also built a strong reputation in the industry for being the leaders in quality

Composition & Format Active peptide: Melanotan I (MT1), CAS 75921-69-6 Strength: 10 mg peptide per clear glass vial Format: White lyophilized peptide powder Kit configuration: 10 vials per kit for convenient repack or redistribution Origin: China-based factory with export experience for cosmetic peptide lines Key Features for Wholesale Buyers High-purity (99%) MT1 peptide designed for consistent cosmetic research outputs China-based factory-direct supply to support bulk and OEM/private-label projects White lyophilized powder for flexible solvent selection and protocol design Stable batch-to-batch quality with documentation (COA/HPLC data available upon request) Suitable for distributors, clinics research departments and peptide resellers seeking reliable MT1 inventory Packaging & Ordering Standard kit: 10 vials 10 mg Melanotan I (MT1) per kit Vials packed in protective plastic trays, then placed inside export-ready outer cartons Factory-direct B2B terms

Doesn't tend to build tolerance, is actually neuroprotective for certain things
Moreover, these methods are culture-independent, allowing further studies and the identification of non-culturable microorganisms in the microbiome