Essence vs. Toner They seem to serve the same function but are very different. The primary purpose of a toner is to balance the pH level of your skin and help cleanse away any leftover impurities that your cleanser may have missed. Meanwhile, essences are a serum's best friend. They bring nutrients to your skin. Starting tomorrow, you can get your hands on our Vitalizing Rosemary Concentrated Essence and other products for up to 50% off for @amazon Prime Day Early Access sale. So get your carts ready!