ghk-cu dmso is a copper peptide. It's great for skin, especially when you combine it with other things. My favorite is and derma rolling. My first experience with copper peptides was Procytes hexapeptide 8

Copper Peptide Hair Serum – 10% GHK-Cu + 5% AHK-Cu Peptides for Hair Growth & Scalp Health – Advanced Regrowth Treatment for Thicker, Fuller Hair in Saudi Arabia | Whizz Hair Regrowth Treatments

When combined with sufficient protein intake, you can maintain muscle mass while losing fat

hexapeptide 8

Size:10X1 ml

Though some bacteria in the small intestines produce B12, it isn’t enough to maintain adequate status in humans.2,4 According to Jack Norris, RD, a vegan expert and coauthor of Vegan for Life: Everything You Need to Know to Be Healthy and Fit on a Plant-Based Diet , there are no reliable sources of B12 in plants, contrary to many rumors about sources such as tempeh, seaweeds, and organic produce