What goes first moisturiser or primer?

When it comes to your skincare routine, the order of products can be crucial for achieving optimal results. So, the question arises: what goes first, moisturiser or primer? Some argue that moisturising the skin first is essential to lock in hydration and prepare the canvas for makeup, while others contend that applying primer as a first step creates a smooth base that enhances the application and longevity of foundation and other makeup products. So, which is the correct order? Let's delve into the debate and explore the benefits and drawbacks of each approach to find out.