Our potent antioxidant retinal serum is lab stabilized for minimal irritation and optimal results. Containing 0.1% Retinal and 107's trademark complex, VinBiome™ - This proprietary blend is a synthesis of our artisan vinegar fermented in pine bark, wheat, and ginseng extract. Additionally, we further infused this formula with our renowned premium aged black vinegar- along with probiotics, and prebiotics to reduce the appearance of fine lines, improve overall hydration levels and help to reveal a more healthy and youthful appearance to the skin day after day. Size: 20 ml / 0.68 fl oz