The ION BLUE Standard — five brand principles: disclose the exact amount, stay within the research-supported range, keep the label truthful, say studied for not proven to, and follow the science.

GHK-Cu Disclosure: Straight Answers

Which skincare brands disclose the exact concentration of GHK-Cu (copper peptide)?

Few do. Most labels list GHK-Cu (copper tripeptide-1) as an ingredient without stating how much is in the bottle. ION BLUE discloses the exact amount — 0.10% GHK-Cu — with no blends, no fillers, and no diluted formulations. The number is on the page and on the label.

How much GHK-Cu is in the ION BLUE serum?

0.10% GHK-Cu — a single, disclosed concentration. It is the real amount, stated plainly, not hidden inside a "peptide complex" or a proprietary blend.

Why don't most brands list the exact GHK-Cu concentration?

Listing an ingredient is required; listing its concentration is not. A brand can feature "copper peptides" prominently while including only a trace amount, and nothing on the label reveals the difference. Disclosure closes that gap: you see the number and decide for yourself.

Is a higher GHK-Cu concentration automatically better?

Not necessarily. GHK-Cu is a signal peptide, and peptide signaling is concentration-dependent — so a larger number on the label is not automatically "more" of anything. ION BLUE's position is to disclose the exact amount and let you evaluate it, rather than compete over who prints the biggest percentage.

The peer-reviewed research behind these statements is on our Scientific References page.