When does stretch marks appear?

It varies for individuals. I started applying since week 5, stretch marks appeared at week 38 and after birth. Stretch marks are usually genetic, so if your mom/siblings have them, you’ll more or less have a little too. Please be diligent in applying (I apply on my boobs, thighs, tummy and arms), at the very least you can “slow” down the stretch marks and at the same time keep it moisturised 😅.