Journal
Short reads on peptides, ingredients and simple routines.

Skin science · 4 min read
What are peptides in skincare?
Peptides are short chains of amino acids, the building blocks of proteins like collagen and elastin.
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GHK-Cu copper peptides: a beginner’s guide

PDRN (salmon DNA) explained

Argireline vs. Matrixyl 3000: what’s the difference?

Why hyaluronic acid comes in two sizes

Ceramides and your skin barrier

How to build a morning and night peptide routine

Can you layer peptides with retinol and vitamin C?

Copper peptides vs. PDRN: which is right for you?

Niacinamide: the quiet multitasker

How long do peptides take to work?

Patch testing new serums for sensitive skin

What makes Korean skincare different
