Cosmetics Formulation Development

I am a beginner trying to practice gel cleanser and Oil free lotion spray . 1 gel cleanser Distilled Water 50% Lavender hydrosol 38% Coco Glucoside 5% Glycerin e 5% Xanthan Gum 1% Mild Preservative Eco 1% [ u]The formula 2 oil free lotion spray Chamomile hydrosol 54% Glycerin 45% Mild Preservative Eco 1% Can both formulas use Mild Preservative Eco about 1%?

Hello, the formula can be mixed. สารกันเสีย used is appropriate. Be careful with the spray formula. Using Glycerin rate too high Not ideal Usually the highest rate Recommended Not More than 15%. In addition, it may cause the liquid to be heavy and unable to spray out as a mist.

Thank you very much to the team