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Patients notice an immediate dewy radiance as HA hydrates the superficial dermis; within 7–10 days tranexamic acid and antioxidants begin to even tone and fade discoloration. Clinical photometric assessments show up to a 30 % reduction in melanin index at 4 weeks, with improvements persisting 6–9 months post-series. Fine-line smoothing and collagen boost from peptides become evident around week 4, with ultrasound-measured dermal thickness gains of \~0.2 mm. Maintenance boosters every 6 months sustain both hydration and brightness, while untreated pigmentation remains stable unless new UV exposure occurs.