niod: 2 posts

I woke up one day to discover that all beauty bloggers slathered blue liquid on their faces and spoke in a string of acronyms. What did NIOD stand for? Or CAIS, for that matter? Five days and 45 euros later I was to find out for myself. NIOD is one of the brands of Deciem, the same company that makes my favorite skincare, The Ordinary. CAIS is Copper Amino Isolate Serum. I selected the 1% concentration.

The online praises for CAIS reached a fever pitch by the time I had learned of it. It was supposed to activate body functions, although the collective wisdom couldn’t figure out which ones. It was to produce results on the fifth day, although NIOD said that the serum “departs from the traditional thinking of addressing visible aspects of skin aging individually and instead forms a foundation to respect skin health.” As you can see, much remained mysterious about this blue potion before I got my hands on it, but it sounded tantalizing enough to take the plunge. Moreover, I had such faith in Deciem that I was willing to overlook their befuddling descriptions.

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When I shared my skincare routine, the most frequent questions you asked concerned vitamin C, so here is my short guide on how I use it, why I like it and what are some of my favorite Vitamin C products.

Out of all the ingredients that skincare companies advertise as miraculous, vitamin C (along with retin A and retinoids) has been shown in independent, clinical studies to have real benefits. It’s a potent antioxidant that prevents sun damage. It increases the production of collagen, even in adult skin. It brightens the skin and helps to lighten sun spots. It’s anti-inflammatory, which means that it’s a good ingredient for those who struggle with acne or rosacea.

This is all good news. The bad news is that Vitamin C is highly unstable. Because it’s such a potent antioxidant, it begins to bind to free radicals of oxygen even when it’s still in the bottle. Which means that it becomes potentially damaging to the skin! The sure way to tell is if your Vitamin C serum has changed color and turned yellow or orange, but many brands cheat and add botanical colorants. Then, there are formulations that use so little Vitamin C, it makes no difference. Or they use a type that doesn’t convert to the active form in the skin.

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