How long has it been since your boat had a proper detail?
The marine industry recommends a full detail, inside and out, at least twice per year.
Oxidation is a natural thing but it can do serious damage to a boat. The pourus gel coat deserves the proper treatment and protection. Even on the inside.
Clean compartments and bilge
Hand polish all metals and brightwork
Clean and protect all vinyl seats and bolsters
Professional handwash, rinse, and dry
Clean interior glass surfaces
Vacuum carpets and/or Clean non skid