ARENCIA Retinal Booster Shot 30ml is a lightweight Korean anti-aging treatment formulated with retinal (retinaldehyde) to help reduce the appearance of fine lines and wrinkles, improve skin texture, support firmness, and restore a brighter-looking complexion. Designed for nighttime use, this fast-absorbing booster can be gradually introduced into a skincare routine to help achieve smoother, clearer, and more youthful-looking skin.