Dear Dr. Pickart and SkinBiology,

Would you please explain why the products created with GHK as the main source of CPs are more expensive than the products created with Hydrolyzed Soy Protein and/or Copper Chloride as the main source of CPs?

Thanks!

Because GHK is very expensive to buy.

Thank you, Dr. Pickart,

Would GHK still be beneficial for someone like me who has already used the stronger CP's such as TriReduction and Super CP Serum? I also have CP Serum and P&R cream, which I use on days when I need a milder CP product, but was wondering if GHK would give me different results. Would you please let me know?

Thanks!

I think that on the skin, all the copper peptides work about the same.

But GHK has so many studies that some people prefer it. It is a mild cream and I usually use it.