The Papa & Filles journal
Explore the Peptide Care family, from scalp to skin. Understand the ingredients in your routine. Start with copper peptides, scalp care and the research behind our next chapter. Explore our approach to the evidence.
Start here · Copper peptides
Amino acids. Two distinct copper peptides. The difference between an interesting study and a finished formula. Let’s make it clear.
Understand the scienceOne formula. Six featured ingredients.
What each one is, what researchers studied, and what the evidence can tell us.
The ingredient library
What is GHK-Cu, and why is it used in scalp care? Understand its amino-acid sequence, the laboratory research and what a study can tell you about a serum.
Read the guideThe ingredient library
AHK-Cu has been studied in isolated human hair follicles. Learn what the research measured, why the setting matters and how to read scalp-serum claims.
Read the guideThe ingredient library
Caffeine appears in many scalp serums. Explore a follicle study and a human trial, see how they differ and learn what the findings mean for a formula.
Read the guideThe ingredient library
Niacinamide is familiar in facial skincare. Learn why it appears in scalp formulas, what skin-barrier research measured and where the evidence stops.
Read the guideThe ingredient library
Panthenol brings a moisture-care story to scalp formulas. Read what a human skin study measured and why this supporting ingredient deserves attention.
Read the guideThe ingredient library
What is sodium hyaluronate, and why is it in a scalp serum? Understand hyaluronic acid, water-binding properties and the limits of skin research.
Read the guideThe ingredient library
Part, apply drops, massage, leave in. A clear guide to using a leave-in scalp serum, including copper peptide formulas, with no promised results.
Read the guideThe ingredient library
Compare GHK-Cu and AHK-Cu: their amino-acid sequences, original research and how to read a copper peptide scalp-serum label.
Read the guideFrom the journal
Beauty & routines
Understand peptide routine steps and application areas. Our former facial range is retired; explore current scalp care and body-patch information.
Read the guideBeauty & routines
Understand peptide patch formats, ingredient research and finished-product evidence. Copper Peptide Complex body patches are available to pre-order.
Read the guide
