Face Serum for Rejuvenation, Firming, Hydration & Youthful Glow, Refines Skin Texture. Korean Skincare. The REJURAN Turnover Ampoule intensely cares for damaged skin while promoting a natural skin turnover cycle. With regular use, it helps even out skin tone and smooth rough texture, leaving skin soft, radiant, and rejuvenated. Its high-performance formula delivers lasting hydration, strengthens the skin barrier, and supports deep skin recovery for youthful, healthy-looking skin.