Lack of facial glow and dark circles are usually related to factors like tiredness, stress, dehydration, sun exposure, and genetics, so improving daily habits is the first step: get enough sleep, drink plenty of water, eat a balanced diet, and manage stress. Use a gentle face wash, apply a moisturiser, and most importantly, use sunscreen daily to protect your skin and improve overall brightness. For better results, you can add simple skincare products like vitamin C (for glow), niacinamide (for even tone), and a mild under-eye cream with caffeine or retinol to help reduce dark circles over time. Avoid rubbing your eyes and reduce screen strain. If dark circles are severe or long-standing, a dermatologist may suggest treatments like chemical peels, laser therapy, or fillers, depending on the cause.