(Caution: Running may be the cause..) Recommended criteria and questions for freckle management products

As I continued to enjoy running, my physical strength and condition improved, but at some point, I started noticing light freckles on my face. Especially since I'm often exposed to sunlight outdoors, I realized that even sunscreen isn't perfect. So, these days, I'm most interested in recommendations for freckle management products.

If you search, you'll find countless recommendations for freckle management products, but I think there should be separate standards for people who frequently exercise outdoors, like running. I'd like to know if there are any recommendations for freckle management products that can be used without irritation, even after sweating after exercise. I'd also like to know the actual effectiveness of whitening functional ingredients. I've heard that ingredients like vitamin C and tranexamic acid are good for freckle management, but I'm wondering if they're safe to use on my sensitive skin after running.

Another question I have is: when receiving recommendations for skincare products, should I focus on ampoules and serums, or should I incorporate creams and sunscreen into my routine? I'm also unsure whether I should use different skincare regimens on days I run outdoors and days I rest indoors. My goal is to maintain my skincare routine without the darkening of my skin while exercising, rather than focusing on immediate, dramatic results.

As a woman who enjoys running, I'd like to hear detailed information on dermatologists' recommendations for freckle management products, along with a proper skincare routine that incorporates UV protection. I want to maintain my skin's condition while exercising regularly.