Which service is typically recommended for correcting overly dark color?

Color stripping is the recommended service for correcting overly dark color because it effectively removes or lightens the unwanted color from the hair without necessarily requiring it to be completely bleached. This process involves using a specific chemical formulation designed to lift the dark pigments, allowing for a more manageable base to apply a new color or to achieve a more desired shade.

Bleaching, on the other hand, primarily works to lighten hair to a much lighter shade, which may not be suitable or necessary when simply correcting a dark color. It can also potentially cause more damage to the hair if the intent is just to adjust the existing color.

Color toning is typically used after bleaching or lightening to achieve a specific shade or to neutralize unwanted undertones, rather than being a primary method for correcting dark color. Balayage is a highlighting technique that is more about creating a dimensional color effect rather than correcting a uniform dark coloration.

Thus, color stripping is the most appropriate solution for addressing overly dark hair color issues.