Hello, I made my bathbomb last week.
This is my entire recipe.
baking powder 100g
citric acid 50g
Constach 20g
rice powder 30g (my special indigrent.)
gliceryn 4g
grape seed oil 2g
rosebath powder 2g
Fragrance oil 3g
but, someday, my bathbomb start remain powder bottom of my bathtub...