[REVIEW] Dr. Dennis Gross C + Collagen serum

Vitamin C & Niacinamide: a Potential Love Story

There’s always a new fancy type of vitamin C that’ll gain buzz for a few months. Sunday Riley is currently touting THD or Tetrahexyldecyl Ascorbate in their C.E.O line, Korres has ‘Super C’ or Ascorbyl Tetraisopalmitate, some brands prefer the tried and true L-Ascorbic or pure form of vitamin C. But Dr. Dennis Gross has recently launched his newest vitamin C serum focused on brightening skin tone and supporting collagen production sporting 3-0-C, or Ethyl Ascorbic Acid.

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Vitamin C is a great ingredient. Arguably one of the most anti-aging non invasive ingredients you can slather on. But being an active ingredient it does have a vitamin it doesn’t like to mingle with. Niacinamide! (or vitamin B3) All forms of vitamin C eventually metabolize into L-Ascorbic Acid, the raw form of vitamin C. Some take longer, but it’s generally deemed safe to use Niacinamide and other forms other than L-AA together. When Niacinamide and L-AA mix they can potentially form what is known as a ‘1:1 complex’ and render each other useless. No vitamin C, no Niacinamide. This is still a grey area for cosmetics and cosmetic formulators. Some believe you should have the two used at separate times (such as morning and night). When mixed they produce a substance called nicotonic acid which can cause skin flushing, and irritation. However it’s said it could be as, or more effective than Niacinamide on it’s own. This usually is not the case again, with forms of vitamin C other than L-AA. Some brands, like Dr. Dennis Gross are using them side by side. If you’re interested in all of the interactions with vitamin c and niacinamide I would recommend checking out this post by KindOfStephen it’s super informative, and he goes over the in’s and out’s of it and what nicotinic acid is.

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3-0-C has a small list of benefits it touts over other forms of vitamin C. The biggest one is that it is both oil and water soluble, allowing for maximum absorption. It shows great improvement in hyperpigmentation/dark spots by inhibiting Tyrosinase activity therefore slowing down Melanin synthesis. It’s also a great antioxidant and is shown to be very stable in formulations. To read more aout 3-0-C this is a relatively easy to understand study on it check it out here.

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One of my biggest complaints about vitamin C serums is the consistency. SO MANY are tacky, or leave a less than desirable feeling. While I unfortunately can’t tell you this could be an exception, it still feels a little like a sticky vitamin C serum. It isn’t nearly as tacky as say, OST 20, but not great. No weird smells, or gimmicks just a quick absorbing well formulated vitamin C.

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To make sure you’re getting more than just your anti-aging/brightening effects with the Niacinamide and vitamin C team, you can also find Superoxide Dismutase (SOD) a lesser known Skin Identical ingredient (something found naturally occurring in our skin) that inhibits oxidation. Hexylresorcinol, a UV protectant and potentially a skin brightening ingredient. Lastly to note, Collagen amino acids, a favorite of mine to provide moisture and building blocks for collagen production.