THE INGREDIENT LIBRARY
Ingredients. Beyond the buzzwords.
What an ingredient is, what the research actually says, and where it fits in your routine.
INGREDIENT GUIDE
Copper Peptides (GHK-Cu)
Promising research. Important limits. Explore the evidence and featured Koppa Beauty serum and moisturizer.
Read the copper peptides guide
SUN PROTECTION GUIDE
Sunscreens
SPF, broad-spectrum protection, mineral and organic filters, and everyday application. A practical guide to getting the basics right.
Read the sunscreen guide