What is GHK-Cu? Can you use copper peptides with vitamin C? How long until you see results? Answers to the most common questions about the PB Cosmetics range.
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FAQ
What is GHK-Cu?
GHK-Cu (Copper Tripeptide-1) is a naturally occurring copper peptide complex. In skincare it is prized for supporting the look of firmer, smoother and more even-toned skin.
Can I use the series with vitamin C or exfoliating acids?
We suggest keeping copper peptides and strong acids or L-ascorbic acid (vitamin C) in separate routines — for example vitamin C in the morning and your GHK-Cu ritual at night.
How long until I see a difference?
Skin renews itself over roughly four to six weeks, so we recommend using the ritual consistently for at least eight weeks. Results vary from person to person.
Is it suitable for sensitive skin?
As with any new skincare, patch test first and discontinue use if irritation occurs. Consult a dermatologist if you have a skin condition or are pregnant or breastfeeding.
How do I contact you?
Use the contact page and we'll reply within two working days.