2% Hyaluronic Acid: We generally assume the higher concentration, the more efficiency. For us, we need to look for a balance between the texture, function and the percentage of active ingredients. 2% concentration is the best option after numerous testing and trial, deeply moisturizer but non-sticky after fully absorbed. | Vitamin B5 (Panthenol): Face serum with Vitamin B5 known for its soothing and moisturizing properties. It can help support the skin barrier, promote skin reproduction, enhances moisturizing ability., protect from irritation. A good option for sensitive skin. | Unique Bottle Design: We use a blue transparent bottle so that our customer can see the purity of our serum from outside. At the same time, it is oval, it feels very young and unique. Whether it is gift for friends or traveling with you, it is very suitable. | Our Security Guarantee: We use our serum every day, so we know what you care about. A: It is suitable for all skin type even if sensitive skin. (dry skin, oily skin, combination skin, sensitive skin and mature skin) B: Our products have been tested by the laboratory and have related certifications. C: Cruelty-free, paraben-free, gluten-free, fragrance-free and heavy metal-free. D: Not only suitable for women, but also for men, girls and boys.(EWG VERIFIED) | Satisfacetion Guarantee: there are so many skincare products on amazon, it’s hard to know which brands you can trust. We are confident that you’ll love our skin serum, because we don't produce and sell garbage. We’re offering a 90-day money-back refund. You can try it risk free today!