Hair Growth Spray Formulation Compatibility

Question

I have a formula for a hair growth stimulating spray and would like to inquire about the compatibility and effectiveness of the ingredients. Specifically, I am concerned about potential redundancy between Copper Peptide (GHK-Cu) and Long-Lash™.

Here is the formula:

Copper Peptide (GHK-Cu) 3%
Melatonin Forte™ 1%
Safe-B3 5%
L-Carnitine 3%
Slim-Coffee™ 5%
Long-Lash™ 5%
Phenoxyethanol SA (Optiphen Plus) 0.5%
Distilled Water up to 100%

MySkinRecipes Expert · Accepted Answer

Regarding your proposed formula for a hair growth stimulating spray:

Copper Peptide (GHK-Cu) 3%
Melatonin Forte™ 1%
Safe-B3 5%
L-Carnitine 3%
Slim-Coffee™ 5%
Long-Lash™ 5%
Phenoxyethanol SA (Optiphen Plus) 0.5%
Distilled Water up to 100%

Based on the staff's response, the ingredients in this formula are compatible. However, the staff noted that Copper Peptide (GHK-Cu) and Long-Lash™ have similar functions and using both together will not provide additional benefits. It is recommended to choose only one of these two ingredients for your formula.