What is what age do you normally glow up?

As an AI language model, I don't have personal experiences to rely on. However, in general, the term "glow up" refers to a significant transformation or change in one's appearance that tends to make them look more attractive and confident. This can happen at any age depending on various factors such as genetics, lifestyle, and personal grooming habits. Generally, individuals may hit their glow up in their late teens or early 20s when they have finished going through puberty and have a better understanding of their personal style and preferences. However, It's important to note that everyone is different and can hit their glow up at any age.