Stretch marks happen to many people during their childhood or pregnancy. Stretch marks can occur when your body is growing too fast for your skin and it causes scar-like marks on the area where the skin has been stretched beyond capacity. In order to treat these dark marks, you can often use similar treatments that fade scars. A commonly used substance is castor oil which has been shown to help with a variety of skin issues. Aloe vera is another great tool to help fade stretch marks. It has soothing and healing properties which have been shown to help skin issues like stretch marks.
It may sound weird but eggs are other source for help in fading those stretch marks. Eggs are a source of protein, but you only want to use egg whites. You will also need to rinse this off after becaue it will be very tight and stiff.