I use the cream after shower day and night. Before bed i will apply the oil.
Put on palm about the size of 20cent coin and apply at the areas like lower abdoment, side of hips and on side of tummy.
You can find some information here: https://community.theasianparent.com/q/everyone-i-know-lot-mummies-rave-about-clarins-tonic-oil-stretch-mark-mini/437317