Post-inflammatory hyperpigmentation (PIH) represents one of the most common concerns following acne breakouts, particularly affecting individuals with darker skin tones prevalent in Singapore's multiethnic population. This comprehensive guide explores the scientific basis of PIH, evidence-based treatment approaches, and practical prevention strategies tailored to the tropical climate and diverse skin types in Singapore.

Forehead wrinkles address facial aging concerns through various treatment approaches. These horizontal lines develop gradually through repeated facial expressions, natural aging processes, and environmental factors. Understanding the mechanisms behind forehead wrinkle formation and the range of available treatments—from topical products to injectable procedures—enables informed decision-making about which approaches align with your aesthetic goals and lifestyle.