Following the vitamin C parameters established by Duke University research, this breakthrough serum-in-a-gel contains a synergistic antioxidant combination to help protect the delicate eye area from oxidative stress, while targeted actives revive under-eye skin and reduce the appearance of puffiness. AOX+ Eye Gel prevents signs of ageing while correcting existing photodamage. When used daily, this preventive and corrective treatment combats signs of fatigue to restore a fresh, vibrant appearance around the eyes.Suitable for all skin types.How much Skinceuticals АОХ+ Eye Gel do I use per application? How often should I use Skinceuticals АОХ+ Eye Gel? Skinceuticals products are incredibly high quality, and so are highly potent. You don't need to use a lot to achieve maximum efficacy, and overdosing will result in wastage of your favourite products! The recommended dose per use of Skinceuticals АОХ+ Eye Gel is NA. This means you should get 150 applications. Use once a day. Following these dosage instructions should ensure your product lasts for the intended 21 weeks.