Cosmetics Formulation Development

Spray to reduce gray hair

MSH Black ™ ( Acetyl Hexapeptide-1 ) 5%

GreyReverse ™ ( Palmitoyl Tetrapeptide-20 )5%

Panthenol ( Pro Vitamin B5 , DL- Panthenol , Powder) 3%

Pure Keratin ™ (Natural, Australian Sheep Wool)2%

84% water

Preservative 1%

Can this formula work? Which preservative should I use?

hello

can mix

Preservatives, I recommend Mild Preserved Eco 1%.