When it comes to proven skincare ingredients, you can’t leave out Vitamin C, praised for its powerful antioxidant benefits and known to protect against oxidative stress to keep your skin looking firm, smooth and bright. The main issue when it comes to Vitamin C is that it can be highly unstable and rendered ineffective even before it hits your skin! 

We’ve found that combining two different forms of Vitamin C (pure Ascorbic acid with the more stable 3-O-Ethyl Ascorbic acid) at a concentration of 16% is the best way to deliver a potent and stable dose of Vitamin C to your skin without irritation. 

Dr. Yoon says, “although higher concentrations of Vitamin C in skincare can we powerful, it often comes with irritation or sensitivity issues – it’s great that this serum has been formulated at a high 16% Vitamin C percentage but also with a focus on stable and gentle delivery.”

The Soffli Philosophy

Soffli products are made of clean and proven ingredients that made the SeoulofSkin Team and Dr. Yoon’s short list and contain 15 or less ingredients.  In our opinion, ~15 is the magic number that allows us to formulate highly effective products that pack a punch without confusing you when we present the full list. With Soffli, you can finally understand and feel good about everything you’re putting on your skin – and at “pretty” prices too! Learn more about Soffli’s “Simple, Smart & Pretty” philosophy here.