At ETRONG, our mission is to care for the world we live in. From the products we create to the women we empower, we strive to redefine what's possible by combining nature with science. We believe in celebrating beauty as much as celebrating the beautiful harmony between mind, body and spirit. As we continually revolutionize the industry with high performance, botanically-based products containing naturally-derived ingredients, we make every effort to be kind to our planet. Our recycled packaging, breakthrough formulas and advanced technology are sustainably sourced and deliver dramatic results - from the very first use. Vitamin C serum has been Proven by skin-care experts the world over to be one of the leading antioxidants in skin care, and it is one of the most well-known and well-researched topical ingredients in the world.