After six weeks of testing, my complexion is clearer and brighter than before. Throughout the course of testing, I did not notice any breakouts or acne due to the CosRx snail mucin (and my skin is typically reactive to new ingredients). The Advanced Snail 96 Mucin Power Essence (96, because 96% of this Essence is snail secretion filtrate) hydrates the skin on a cellular level and promotes healthier skin without heaviness or irritation. Essence fills the skin with elasticity for glowing, younger looking skin. I was already using one and bought another one because of the visible results, Loved it and will keep on purchasing this product only...