APLB Glutathione Niacinamide Ampoule Serum is a multi-purpose serum designed to brighten dull or uneven skin while delivering hydration and reinforcing the skin barrier. It combines the antioxidant power of glutathione with the tone-balancing benefits of niacinamide, creating a formula that targets both radiance and skin health. Glutathione helps neutralize free radicals and combat oxidative stress, while niacinamide improves overall tone, promotes an even complexion, and supports barrier function, helping skin appear clearer and more luminous. The serum also contains hydrating and barrier-supporting ingredients that enhance softness, smoothness, and resilience. Moisture-retaining components help maintain plump, supple skin, while soothing agents calm irritation and support comfort, making it suitable for sensitive skin. These elements work together to create a balanced environment that strengthens the skin over time, reducing dryness and signs of fatigue. Despite its nourishing profile, the serum has a lightweight, fast-absorbing texture that layers seamlessly under moisturizers or creams without leaving a heavy or greasy feel. This makes it suitable for both morning and evening routines and allows it to fit easily into existing skincare regimens. Its gentle formulation ensures compatibility with most skin types while providing effective brightening, hydration, and barrier support. With regular use, APLB Glutathione Niacinamide Ampoule Serum helps refine texture, even out tone, and improve elasticity.