Vitamin C is a popular ingredient in skincare products due to its powerful antioxidant properties and ability to brighten and even out skin tone. However, not all forms of vitamin C are created equal. 

Let's start with a brief explanation of the different forms of vitamin C. Ascorbic acid (L-ascorbic acid) is the most common and well-studied form of vitamin C, but it can be unstable and can cause irritation for some skin types. Therefore, other stable derivatives have been developed for use in skincare products, including tetrahexyldecyl ascorbate (THDA), ascorbyl palmitate (AP), ascorbyl tetraisopalmitate (ATIP) and sodium ascorbyl phosphate (SAP).

VCIP, or tetrahexyldecyl ascorbate phosphate, is a stable derivative of vitamin C that has become increasingly popular in skincare products. VCIP is oil-soluble, making it more compatible with the lipid layers of the skin, and it can penetrate deeper into the skin than other forms of vitamin C. Additionally, VCIP has been shown to have strong antioxidant properties and can help to brighten and even out skin tone.

ATIP, or ascorbyl tetraisopalmitate, is another stable derivative of vitamin C that is often used in skincare products. Like VCIP, ATIP is oil-soluble, making it more compatible with the skin's lipid layers. ATIP has been shown to have antioxidant properties and can help to reduce the appearance of fine lines and wrinkles. While both VCIP and ATIP have their benefits, we chose to use VCIP in our ACE Vitamin C serum for several reasons. First, VCIP has been shown to have stronger antioxidant properties than ATIP. Additionally, VCIP has been shown to be more stable than ATIP over time, meaning that it is less likely to degrade and lose its effectiveness. Finally, VCIP has been shown to be less irritating to the skin than ascorbic acid, making it a better choice for individuals with sensitive skin.

"My skin felt so good after using this serum. It restored moisture & was very gentle on my very sensitive & dry rosacea skin." Simone C.

While there are several stable derivatives of vitamin C available for use in skincare products, we chose to use VCIP in our ACE Vitamin C serum due to its strong antioxidant properties, stability, and compatibility with the skin's lipid layers. If you are looking for a vitamin C serum to add to your skincare routine, be sure to look for one that contains a stable derivative of vitamin C, such as VCIP, for maximum effectiveness and minimal irritation.