If your peptide hasn't fully dissolved, or the solution appears cloudy or gel-like after mixing, this is often related to mixing or storage conditions. If you're unsure or something looks unusual, send us a photo so the team can review it.
GHK-Cu looks different — that's expected
A deep blue solution is normal for GHK-Cu — the colour comes from the copper in the peptide itself. Other peptides are meant to stay clear and colourless, so a colour difference between vials in the same order is expected, not a fault.
The copper complex is more delicate during mixing than simpler peptides: add the water slowly down the side of the vial and swirl gently — even a brief shake can cloud this particular peptide while the same water mixes other vials perfectly clear.
If a GHK-Cu vial stays cloudy or clumpy after 20-30 minutes at room temperature and a gentle swirl, that isn't expected — send photos and your order number so the team can review the batch.
Common causes
High peptide concentration
Adding very cold BAC water
Placing the vial in the fridge immediately after mixing
Storing the vial in a colder section of the fridge
Smaller-than-recommended amounts of BAC water used- Using expired or improperly stored BAC water
What you can try first
Leave the vial at room temperature for 20-30 minutes
Gently swirl the vial - do not shake
Roll the vial slowly between your hands to warm it slightly
This will often resolve the issue. If it doesn't, or if you're concerned about the appearance, our team can review photos and order details.
If the issue doesn't resolve
If you're reading this in the Help Center, email [email protected] with the details below. If you're already in an email or Intercom support conversation, upload the photos in the same thread.
Your order number
Clear photos of the vial
A short description of what you tried
Our support team will review and assist further within 1 business day.