Detailed answer

Hyperpigmentation is the darkening of certain areas of the skin due to increased melanin production. It is typically caused by factors such as sun exposure, hormonal changes, or inflammation. The use of earplugs or noise-canceling headphones does not directly contribute to hyperpigmentation as they do not affect melanin production. However, it is important to ensure that these devices are clean and hygienic to prevent any skin irritation or infection, which could indirectly lead to skin discoloration or other skin issues. It is recommended to regularly clean earplugs and headphones according to the manufacturer's instructions and to practice good hygiene while using them to maintain healthy skin.