FAQ
What are copper peptides (GHK-Cu)?
A small copper-binding peptide used in skincare to help skin look firmer and smoother. Our blue serum uses it in a light morning formula.
What is PDRN?
A DNA-derived ingredient used in skincare for a plumper, more rested-looking complexion. Ours is vegan and biosynthesized, not from salmon.
Can I use copper peptides and PDRN together?
Yes — that's the Glow Duo: copper peptide in the morning, PDRN at night.
How many drops?
5–6 drops on face and neck (pink: 1–2 pumps).
How long does it last?
One bottle used morning and night: about 2 months. The kit (one AM, one PM): about 3 months.
Can I use it with retinol?
Yes, on different nights: retinoid 2–3 nights a week, PDRN on the others; copper peptide in the morning.
With vitamin C?
Use L-ascorbic acid vitamin C at a different time of day from copper peptides.
Why does the pink serum tingle?
It contains micro-spicules that can cause a brief tingle; it should fade within minutes. Stop if it burns.
Is it fragrance-free?
PDRN: yes. Each product page lists fragrance and the full INCI.
Is it safe for sensitive skin?
Patch test behind the ear for 2 nights first, and start with the PDRN serum only.
Pregnant or breastfeeding?
Ask your doctor before starting any new skincare.
Where does it ship from?
Inside the US: Charlotte, NC and [3PL city]. Delivery takes 2–5 business days.
Do I pay customs?
No. Everything ships from inside the US.
Returns?
30 days. See the returns page.
Where is it made?
Copper peptide serum: USA. The other products: EU.