Celimax The Vita-A Retinal Shot Tightening Booster is a potent anti-aging serum formulated with retinal (a powerful Vitamin A derivative) to help improve skin elasticity, reduce the appearance of fine lines, and promote a firmer, more youthful complexion. Designed to deliver visible tightening effects, this booster also supports cell turnover, smooths rough texture, and enhances skin tone without excessive irritation. Ideal for nighttime use, its gentle yet effective formula is suitable for those looking to introduce a high-performance retinoid into their skincare routine.