Buying guide5 min readBy Marco Buchegger
Buying a copper peptide serum: the seven criteria that matter
How to recognise an effective GHK-Cu serum — and where the shelf typically cuts corners.
Copper peptide serums differ less in marketing than in four sober technical points. Know them and you can judge a product in thirty seconds.
The seven criteria
- GHK-Cu high up the INCI list rather than at the very end.
- Complementary peptides instead of a single lonely active.
- Light-protected, low-air packaging.
- No high-dose acids in the same formula.
- Traceable origin and production standard.
- Tolerated by sensitive skin.
- Cost per day rather than cost per bottle.
Why cost per day is the honest number
At two to three drops each evening a bottle lasts about a month. Only the daily cost makes different bottle sizes comparable.
How LIORA is built
High-concentration GHK-Cu combined with SNAP-8 and multi-molecular hyaluronic acid, developed in Italy. Full details, pricing and shipping tiers on the product page: LIORA GHK-Cu Korean Gold Serum.
See the serum and pricingFrequently asked questions
- What should you look for when buying a copper peptide serum?
- The position of GHK-Cu in the INCI list, light-protected packaging, sensibly complementary peptides and the cost per day of use.
- How long does one bottle last?
- At two to three drops each evening, a bottle typically lasts around a month.
- Should copper peptides be combined with acids?
- Not in the same application. Use acids and high-dose vitamin C on other days or at another time of day.
Topics
- Copper peptide serum
- Buy GHK-Cu
- Buying guide