My DD Chloe has a strawberry mark on her shoulder and it is just starting to fade now and she is nearly 6 and my DD Haylee has a strawberry mark about the size of a 5 cent piece above her left eyebrow and hasn't faded at all, she has just turned 4. The nurse told me they start to disappear after the age of 5 - 6, so we will see. I like them though they look cute.