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Plainface Reviews 

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TrustScore 3.5 out of 5

3.7

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3.7

Average

TrustScore 3.5 out of 5

1 review

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3.7

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Rated 5 out of 5 stars

PlainFace GHK-CU Tested

It is important that I have the highest quality product for making my scalp/hair-loss lotions.
I basic Chemical reaction tested the Plainface GHK-CU product in my Lab using the HCL Test and 1mg of GHK-CU. The reaction is instant. The Copper Peptide instantly changes to an Olive Green. This confirms Copper. 2nd Test is Peptide. I added liquid NaHCO3 to 1mg of GHK-CU and the color went deep Navy Blue. A confirmation of Peptide. The combined tests confirms of a high quality (PlainFace) GHK-CU

30 September 2026
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