They are usually found in the sports supplements section
That research keeps pointing back to the same four triterpenoid saponins: Asiaticoside, Madecassoside, Asiatic Acid, and Madecassic Acid
Rosemary extract, green tea extract, and ginseng root extract represent particularly valuable additions to formulations containing Pure Copper peptide, as these botanicals have independent evidence supporting their role in promoting hair growth while also protecting the peptide from oxidative degradation
Knowing what each peptide is also helps you judge a vendor
The four sub-amounts sum back to the total: 1,667 + 333 + 333 + 333 = 2,666 mcg, rounding to ~2,667 mcg