can you take klow and nad together NAD+ and GHK-Cu aren't interchangeable! They're NAD+ Supplements: Benefits and Risks
Description
The off period is mainly there to address copper-accumulation concern from the GHK-Cu component, which makes up 62.5% of the blend
PRISMA 2009 Checklist statement: This systematic review complies with the PRISMA 2009 guidelines, and the completed PRISMA checklist is provided in the supplementary materials
The elastin you have at age 20 is essentially the elastin you'll have at age 70, minus whatever damage accumulated during those five decades

However, if a supplement is fake or poorly formulated, you are not just wasting money