Basic advice needed about my recipe + adding ingredients during “the cool down phase,” please . . .
Below is what I think I’m going with for my next adventure:
7% almond oil
7% olive oil unsaponifiables
4% tetrahexyldecyl ascorbate
3% cetyl alcohol
1% sorbitan stearate
1% green tea extract
0.3% xanthan gum
0.2% sodium phytate
3% acetyl glucosamine
1% Euxyl K903
-1- For the water phase (Phase , I assume I dissolve the green tea powder, sodium phytate, and niacinamide into the water, disperse the xanthan gum in glycerin separately, and then combine the glycerin mixture with the water-based concoction?
-2- I know a number of ingredients, such as preservatives or acetyl glucosamine, are recommended to be added during the cool down phase.
Can I simply add the acetyl glucosamine toward the end (in powder form) after the emulsion has formed, or must it first be dissolved in water? Separately, if I am worried about the almond oil being sensitive to heat, would I also be able to add this into cool down, or are there risks to adding too many ingredients at cool down?