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It's the salt form of famous humectant and natural moisturizing factor, hyaluronic acid. As far as skincare goes, sodium hyaluronate and hyaluronic acid are pretty much the same and the two names are used interchangeably. Obagi caught my eye because not only did the serum come in amber glass bottles (very important for vitamin C! As cosmetic chemist kindofstephen writes on reddit  "sodium hyaluronate disassociates into hyaluronic acid molecule and a sodium atom in solution". It also shows all the three anti-aging benefits (antioxidant protection + collagen boosting + fading hyperpigmentation) that pure vitamin C does. Cheap Obagi Vitamin C Serum 20 Deal . In large amount can be very drying. I had been using another, much more expensive brand of vitamin C serum. Fragrance in the US and parfum in the EU is a generic term on the ingredient list that is made up of 30 to 50 chemicals on average (but it can have as much as 200 components!). Obagi is one of the most trusted names in skin care. (it's also alcohol, but with some additives to make sure no one drinks it). I was surprised when I first opened the bottle, as the contents appeared to fizz a bit and disappointed when a bit of this pricey serum ran out over the bottle. It’s the - sodium form - cousin of the famous NMF, hyaluronic acid (HA). A form of skincare superstar, vitamin C.If you do not know why vitamin C is such a big deal in skincare, we have a really detailed, geeky description that's good to read.. Hành trình phục hồi làn da. If you wanna become a real HA-and-the-skin expert you can read way more about the topic at hyaluronic acid (including penetration-questions, differences between high and low molecular weight versions and a bunch of references to scientific literature). Good old water, aka H2O. Hành trình phục hồi làn da. What seems to be a true difference, though, is that the salt form is more stable, easier to formulate and cheaper so it pops up more often on the ingredient lists. Exactly what it sounds: nice smelling stuff put into cosmetic products so that the end product also smells nice. It provides superior antioxidant protection with deep penetration to the dermal layer. This is kind of important for an anti-aging ingredient to do the job, so this is good news, though in-vivo (made on real humans) studies are still needed. Like all of their products, their Obagi Vitamin C Serum is formulated by actual dermatologists, so you’ll know they’re safe to use and highly effective. :). I liked it okay, but it smelled like bacon, and I felt guilty spending that much money. If HA does not tell you anything we have a super detailed, geeky explanation about it here. It has many instant benefits: it's a great solvent, penetration enhancer, creates cosmetically elegant, light formulas, great astringent and antimicrobial. Read all the geeky details about Propylene Glycol here >>, Read all the geeky details about Ascorbic Acid here >>. A common glycol that improves the freeze-thaw stability of products. Its lightweight properties make it compatible with other products and perfect for temperamental skin making it a good choice for those new to the vitamin C serum regimen. Also, it's extremely unstable and hard to formulate. ... See more reviews here. Lighter than cream and certainly more concentrated, vitamin C serum travels well below the epidermis (the top layer of skin) and directly into the dermis so it penetrates really well. 0 Reviews. Obagi Professional-C Serum 20% is formulated with 20% L-ascorbic acid, the only form of vitamin C suitable for topical application. C Serum is available in three different strengths of L-ascorbic acid: 10%, 15%, and 20%. The 20% serum tended to make my face red but then I have very reactive skin. Answer: Obagi vitamin C should be used in the morning and/or evening after cleansing, and possibly exfoliating and toning the skin in a more comprehensive routine. It can be used in many types of formulations as it has great thermal stability (can be heated up to 85°C) and works on a wide range of pH levels (ph 3-10). :) You are almost done: please check your mailbox to confirm your email! With a snap, you can choose by country region of manufacture, such as United States or Japan. Treat your skin to the protective properties of Obagi Professional-C Serum, a concentrated anti-aging serum formulated with 20% Vitamin C to address signs of aging.. Melting effortlessly into skin, the solution combines L-ascorbic Acid with Hyaluronic Acid to plump skin with moisture while brightening the look of hyperpigmentation for a radiant, youthful-looking appearance.

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