Notes from the lab
Journal
Skincare science, ingredient research, and the things the beauty industry doesn't want you to know.
April 2, 2026
5 Signs Your Anti-Aging Skincare Isn't Working (And What to Do About It)
If your anti-aging routine is not showing results after 8 weeks, here is why — and what to look for in products that actually work.
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March 20, 2026
What Is GHK-Cu? The 50-Year-Old Ingredient Your Skincare Is Missing
GHK-Cu is a naturally occurring peptide with 50+ years of research behind it. Here is what it is, what it does, and why you have never heard of...
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March 8, 2026
Copper Peptides vs. Retinol: Which Is Actually Better for Your Skin?
Retinol works by irritating your skin. Copper peptides work by signaling repair. Here is how they compare based on published research.
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