Board Thread:General Discussion/@comment-25926288-20161031005929/@comment-91424-20161104221400

About Ingrid: After she was released from the jar, she aged normally. However, she stopped aging when she comes to Storybrooke. She says so to Emma when they are reunited:

Emma: "This makes no sense. You don't look a day older. That was over 10 years ago." Ingrid: "After you ran away, I came to Storybrooke to wait for you. And people don't age here the way they do in a world without magic."

We don't know why Henry aged normally, even though he grew up during the Dark Curse. All we can do is speculate. Perhaps it's because he, unlike Ingrid, comes from the LWM?