Ingredient guide

Copper peptide on the label is only the first detail.

GHK-Cu, derivatives and a concentration discrepancy worth asking about.

Read the ingredient identity

The Ordinary’s reviewed serum page names Copper Tripeptide-1 and identifies GHK-Cu. NIOD CAIL instead describes an oil-friendly derivative, Copper Tripeptide-1 Palmitamide. Those descriptions are more specific than the umbrella phrase copper peptides. The full formula, route and intended cosmetic use still matter.

Sources: The Ordinary — Multi-Peptide + Copper Peptides 1%, NIOD — Copper Amino Isolate Lipid 1%, CoreAge Rx — Bounce Back, CoreAge Rx — product and plan terms, FDA — compounding substances with potential safety risks

Do not reconcile a conflicting label by guessing

CoreAge Rx’s Bounce Back product page describes 2% copper peptide, while its help-center catalog describes 0.2%. The reviewed pages do not resolve that difference or establish that the ingredient is GHK-Cu. We flag the conflict rather than choose the more attractive concentration. The current dispensed label and a provider explanation are the next useful pieces of evidence.

Sources: The Ordinary — Multi-Peptide + Copper Peptides 1%, NIOD — Copper Amino Isolate Lipid 1%, CoreAge Rx — Bounce Back, CoreAge Rx — product and plan terms, FDA — compounding substances with potential safety risks

Keep the unit on the price

The Ordinary lists a retail bottle at $32; NIOD lists CAIL at $93 for 15 mL; CoreAge Rx advertises a monthly starting price. Those are not three equivalent monthly expenses. Duration depends on the actual product and label-consistent use. A price-per-milliliter comparison is only possible when all package volumes are known, and it still does not prove equivalent performance.

Sources: The Ordinary — Multi-Peptide + Copper Peptides 1%, NIOD — Copper Amino Isolate Lipid 1%, CoreAge Rx — Bounce Back, CoreAge Rx — product and plan terms, FDA — compounding substances with potential safety risks

Topical cosmetics are not injectable recommendations

FDA identifies potential safety concerns for injectable GHK-Cu in its compounding information. That route-specific statement should not be blurred into either an endorsement of injections or a claim that every topical copper cosmetic has the same risk profile. Our board covers skincare products and does not provide injection protocols, reconstitution instructions or dose conversions.

Sources: The Ordinary — Multi-Peptide + Copper Peptides 1%, NIOD — Copper Amino Isolate Lipid 1%, CoreAge Rx — Bounce Back, CoreAge Rx — product and plan terms, FDA — compounding substances with potential safety risks

Follow the evidence

Sources & price notes

Checked October 8, 2026. Provider pages document advertised terms; they do not independently establish clinical outcomes.

  1. The Ordinary — Multi-Peptide + Copper Peptides 1% ↗

    Official public information; price and terms checked October 8, 2026.

  2. NIOD — Copper Amino Isolate Lipid 1% ↗

    Official public information; price and terms checked October 8, 2026.

  3. CoreAge Rx — Bounce Back ↗

    Official public information; price and terms checked October 8, 2026.

  4. CoreAge Rx — product and plan terms ↗

    Official public information; price and terms checked October 8, 2026.

  5. FDA — compounding substances with potential safety risks ↗

    Includes injectable GHK-Cu; route-specific concerns must not be applied indiscriminately to cosmetics.