Cosmetics Formulation Development

84.2% water Vitamin B3 5% Disodium EDTA 0.2% Raffinose 1 % Active Protec ox 0.6% Pro Polymer 1% Activated Resorcinol 1% Kojic Acid 3% Jojoba Oil 3% สารกันเสีย 1% from this formula can be made into a cream to reduce melasma? What should be added or reduced for the effect of reducing melasma? How should I start mixing?