I'm worried because my freckles are getting darker. Will laser treatment be effective?

Lately, I've been thinking about laser treatment for freckles, as my freckles have gotten darker, perhaps due to the sunlight. Home treatment seems limited, so I'm looking into hospital treatments. I'm curious about the actual effectiveness of laser treatment. I'm concerned about the deep pigmentation, but I've also heard that consistent treatment can improve it, so I'm concerned.