GHK-Cu Protocol — Beginner to Advanced

Typical dose

200 mcg

Frequency

Once daily subcutaneous; some run 5 days on / 2 days off. Topical: 1-2x daily to cleansed skin.

Cycle length

Injectable (community practice): 4-8 week cycles followed by a 4-6 week off-period as a precaution against theoretical copper accumulation. Topical: continuous over 8-12+ weeks, no cycling needed.

Route

Subcutaneous / Topical

How long is a typical GHK-Cu protocol?

Standard GHK-Cu protocols run 4 weeks for a full Intermediate cycle. Beginner cycles compress to ~2 weeks for response assessment. Advanced cycles extend to ~5 weeks but require closer monitoring.

What's the safest dose to start a GHK-Cu cycle with?

The Beginner tier starts at 100 mcg once daily subcutaneous; some run 5 days on / 2 days off. topical: 1-2x daily to cleansed skin., half the published Intermediate-tier dose. Hold for 2-3 weeks to assess tolerance and response, then escalate to the standard 200 mcg if no adverse signals.

Do I need to cycle off GHK-Cu?

Cycling depends on the compound's mechanism. Receptor-saturating compounds (most peptides) benefit from 4-6 week off-cycles between protocols to prevent downregulation. Non-saturating compounds (some healing peptides) can run continuously. The full GHK-Cu research profile covers this in detail; see the cross-links below.

Can I stack GHK-Cu with other compounds?

Stacking is common for synergistic effects, but each compound's mechanism, half-life, and route of administration matter. Use the BodyHackGuide stack builder + interaction checker to validate any pairing. The "Where to source" section below ranks vendors who carry GHK-Cu alongside complementary compounds in one shipment.