![]() The SkinCeuticals C E Ferulic comes in two sizes which are: Tip: Store your vitamin C Serum in a refrigerator to slow down the oxidization process and make your vitamin C serum last longer. Shelf-Life Duration.Īccording to skinCeuticles, the C E Ferulic vitamin C serum stays stable and effective for 36 months and up to 6 months after opening. But If the color of your serum begins to turn darker (from clear/yellow to dark brown or orange), then know that it has oxidized and less effective. However, because of this yellowish color makes it difficult to tell when the vitamin C serum has oxidized (gone bad). It’s said the reason for the yellowish color was because of its Ferulic acid content, and it all makes sense because ferulic acid serum takes a golden orange color. ![]() At first when I opened the bottle I freaked out thinking it has oxidized, but when I asked long-term users, they told me that’s how the color is. SkinCeuticles C E Ferulic has a bright yellowish color. The scent subsides pretty quickly after it absorbs, but following this product with a nice-smelling serum or moisturizer also helps counteract the smell. Doesn’t feel greasy or heavy on the skin and doesn’t dry out the skin either. ![]() Texture is light-weight in consistency (just like water), it absorbs quickly into the skin without leaving a residue behind. Inside the bottle is a dropper for dispensing the serum into the palm of your hand or on your face for application. It comes in a dark brown glass bottle to protect the vitamin C serum from direct sunlight which is one of the factors that oxidizes (or degrades) vitamin C. SkinCeuticals C E Ferulic is well packaged.
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