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Copper Peptide (GHK-Cu) that says 1000ppm concentrate, this is equal to What % concentration?

Normal-oily skin I want to use it as a pre-serum. Light gel texture. Use it to take time for irritated skin from retin-a and laser.

Could you please ask for the mixing process?

Skin repair formula and reduce irritation. ⋅  GHK-Cu 3.00% [ *:3t2o9xee] Ectoin 2.00% ⋅  Licochalcone 1.00% ⋅  Panthenol 5.00% ⋅  Satin Cream Maker 0.50% ⋅  Mild Preserved Eco 1.00% [*: 3t2o9xee] Distilled water 87.50% can use Hyaluronic Acid (Standa...