GHK-Cu is the skin-search peptide. Do not buy it from a page with no batch.
Skin and hair language sells fast. Batch and purity records decide whether the seller deserves the click.
Direct answer
PeptideLab lists standalone GHK-Cu with a 50mg format, $74 listed price, batch B-GHK-0112-E, and 99.91% HPLC on the current record.
Skin copy is easy to fake
A seller can write glow, collagen, and hair support in one minute.
A harder thing to fake is a product page with a batch record, purity figure, clear format, and protected payment.
Straight answers
Should I compare standalone GHK-Cu or blends?
Compare the actual format, strength, batch, COA, HPLC, and checkout before choosing.
What should I check first?
Batch ID, HPLC purity, COA access, dispatch origin, and support matter before price.
What has to be visible before I pay?
Price, batch ID, COA, HPLC result, payment method, dispatch origin, and support. If those are hidden, slow down.
Is Peptide Doctor medical advice?
No. Peptide Doctor is not a clinic, pharmacy, prescriber, or treatment service. Medical questions belong with a qualified practitioner.
Why does PayPal matter?
Crypto and blind bank transfers protect the seller. PayPal gives you a dispute trail if the order or support goes wrong.
Why does the batch number matter?
A COA or HPLC number only helps if it belongs to the exact batch being sold. Generic certificates are easy to recycle.
Research peptides are not approved by the TGA for human use. Product links are for checking what is visible before payment, not medical advice.