Hello, the formula can be mixed. It can be done by hand, but it may take a long time. Some ingredients have a smell. The nature of each ingredient. If you are worried that it will have a strong smell. may consider adding
Odor-Kill 1% or maybe more
น้ำหอม help mask the smell of the ingredients. Dissolve all ingredients in water. Once dissolved, add
Xanthan Gum In the last step, blend or stir until combined. You will get gel.