can glutathione darken skin We tried 5 products… and there's 3 that made the cut 👀 Brightening potential? Still a bit of a mystery… Also keep in mind an unstable, short shelf life. Fridge recommended Glutathione for skin lightening -

By replacing and mimicking thymosin Beta-4 peptide, the TB-500 nasal spray may influence similar pathways in subjects in the investigational trials

Unfortunately, this hasnt been proven through research

Most of that research is preclinical rather than large human trials

Be sure that you only get your peptides from a clinic where: Peptides are prescribed only to current patients Sourced from FDA-regulated manufacturing facilities Administered under supervision by trained providers Designed for research and educational purposes only Real-World Use Cases 1

But I also get this stuff is extremely cheap to manufacture and has huge margins when sold to the end customer