Stratia C+C Serum | 15% Vitamin C with 10% L-ascorbic Acid Serum | Non-Irritating, Water-Free Formula | Anti-Aging Benefits | 1 Fl Oz

The delivery of this product was initially weird and difficult but as a licensed esthetician, this Vitamin C itself is the best one I have ever used. Not only is the ingredients list incredibly minimal, it’s also fragrance free, very acne safe, and one of the most stable forms of Vitamin C that I’ve found that is affordable and potent!!

I hate the oily greasy feel of a lot of vitamin c serums. This one has a nice texture that is more like a cream, but it dries to a satin finish. It feels sooooo smooth. Literally like satin. I'm not a "glass skin" fan because it just feels sticky. But this texture is perfect. And the encapsulated delivery system and pump packaging means the active ingredient will still be active by the time it gets to your skin. It is strong and if you don't tolerate Vit C well, then maybe try a different one.

i love this product! it has a really nice velvety smooth finish. definitely be aware that it’s a high concentration of actives and can be irritating. i have sensitive skin but i built up to this using a 10% vitamin c first, worked really well! no complaints, good product and good value

This vitamin C is formulated without water, making it shelf stable for much longer than most vitamin C serums. It will lighten sunspots and protect from future damage when used daily. However, the things that make it so stable also make it a hassle to use. The formulation requires application to perfectly dry skin and then a waiting period of around 5 minutes for the base to evaporate out, leaving the vitamin c behind. For me, this waiting period added to the waiting period required for sunscreen (sunscreen also needs about 5 minutes of time after application to form a film) felt too long for a normal morning routine. Other positives: very affordable for such a stable, effective product; lightened a dark spot that other serums haven't been as effective on; has no scent One other negative: sometimes this product tingles/burns on application

I have dry sensitive skin with a few acne scars and comedones from months ago. I used this product for just two days and I already see major improvement on my acne. No tingling except in broken skin and absolutely no irritation. Trust me when I say this. My skin is sensitive even to some of the gentlest ingredients like centella and Niacinamide in high percentages. But l-ascorbic acid doesn't irritate me at all, especially this serum and Dr.Brenner. I love that this serum has both water soluble, as well as fat soluble antioxidants, giving you complete protection. This has 10% l-ascorbic acid, 5% THD, and 0.5% Q10. Not easy to formulate these three together. If you use water to dissolve l-ascorbic acid, it will make the product oxidize faster. If you use oil to dissolve THD, it may break you out. Using silicones is a genius move stabilizing all three ingredients, while also extending it's shelf life by a year, while leaving behind nothing but the ingredients on your skin after application. It also comes in an airless packaging, which further extends it's shelf life. It has no fragrance or denatured alcohol or essential oils, which is sensible. I also love the novel application of it. It goes on like a cream, but the silicones evaporate in few minutes, leaving behind nothing but the active ingredients. But you gotta give it few minutes before you go in with a moisturizer. People who are complaining about breakouts probably didn't wait for the silicones to evaporate. Love this product. Will definitely repurchase.