Pháº§n 4: Báº£o vá» lÃ n da khá»i tÃ¡c háº¡i cá»§a tia cá»±c tÃm (Pháº§n cuá»i). Professional-C Serum 20% Highest concentrated serum best suited for normal to oily skin; Question#4: How should we use Obagiâs vitamin C serum for best results? As far as skincare goes, sodium hyaluronate and hyaluronic acid are pretty much the same and the two names are used interchangeably. An error has occurred. Có ba ná»ng Äá» khác nhau trong dòng sáº£n pháº©m Obagi Professional-C. Ná»ng Äá» cao hÆ¡n không háº³n là sáº½ tá»t hÆ¡n, mà còn tùy vào cách sá» dá»¥ng cá»§a báº¡n. HÃ nh trÃ¬nh phá»¥c há»i lÃ n da. Bottom line: ascorbyl glucoside is one of the best and most promising vitamin C derivatives that shows similar benefits to that of pure vitamin C, but it's less proven (in vivo vs. in vitro studies) and the extent of the benefits are also not the same. Pretty much the current IT-preservative. The most common skincare ingredient of all. It's also a solvent, humectant and to some extent a penetration enhancer. One more thing: the water used in cosmetics is purified and deionized (it means that almost all of the mineral ions inside it is removed). At 20% concentration of vitamin C, this is a strong yet gentle serum that is intelligently formulated to combat the signs of ageing and hyperpigmentation. Obagi is one of the most trusted names in skin care. Read honest and unbiased product reviews from our users. Obagi Vitamin C Serum Reviews Based on an average of 799 reviews across 3 websites (Lovely Skin,Influenster, and Dermstore), this product has an impressive average rating of 4.8 out of 5 stars. Higher Penetration and Absorption of Vitamin C Into the Skin The Professional-C Serum 20% delivers significantly better penetration into the skin than SkinCeuticals Serum 20 AOX+ ® 24 hours after application. The downside is that it can be very drying if it's in the first few ingredients on an ingredient list. Pháº§n 1: Quy trÃ¬nh chuáº©n bá». Find helpful customer reviews and review ratings for OBAGI PROFESSIONAL-C SERUM 20% 1.0 OZ Pack of 1 at Amazon.com. See 25 member reviews and photos. 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.. It’s the number one cause of contact allergy to cosmetics. Hyaluronic acid binds moisture to your skin to prevent dryness. Serum vitamin C Obagi có ba ná»ng Äá» 10 - 15 - 20%, váºy tôi nên dùng ná»ng Äá» nào? Also, if your skin is sensitive, fragrance is again not your best friend. A nice odorless liquid used mainly as aÂ superior solubilizer and efficacy booster for cosmetic active ingredients such as vitamin C or benzoyl peroxide. Best overall vitamin C serum SkinCeuticals C E Ferulic. Good old water, aka H2O. It is made up of 30 to 50 chemicals on average. what's the deal with alcohol in skincare products at alcohol denat. L-ascorbic acid reaches the deepest layers to the skin to provide superior antioxidant protection, defend against damaging UVA and UVB sun rays, contribute to collagen synthesis and help prevent premature signs of aging such as fine lines and wrinkles. Obagi caught my eye because not only did the serum come in amber glass bottles (very important for vitamin C! So now you know that because pure vitamin C is such a diva (very unstable and hard to formulate) the cosmetic industry is trying to come up with some derivatives that have the badass anti-aging properties of vitamin C (antioxidant protection + collagen boosting + fading hyperpigmentation) but without the disadvantages. Usually the main solvent in cosmetic products. Some experts even think that regular exposure to alcohol damages skin barrier and causes inflammation though it's a debated opinion. Mon Apr 10, 2006 11:10 am : I've been using Obagi Professional-C Serum 20% serum for three weeks. You can see some consumer studies below showing the benefits of Obagi C serum (in this case the 20% concentration): ... One of the benefits of using Obagi Vitamin C serum is that you know you are getting a high quality Vitamin C serum that has been shown to penetrate deep enough into the skin to help with these benefits. Just For You: All skin types A Closer Look: Obagi Pro-C Serum can rapidly penetrate your skin to boost its antioxidant content by providing Vitamin C and helps fight the signs of early aging. Price Price. Once inside the skin, it hydrates, but not from the outside - putting pure water on the skin (hello long baths!) A common glycol that improves the freeze-thaw stability of products. It can be found in nature - in green tea - but the version used in cosmetics is synthetic. ), they had 3 different vitamin C formulations: 5%, 10% and 20%. Pure Vitamin C. A skincare superstar that is clinically proven to boost collagen production (in 5-20% concentration), fade hyperpigmentation and boost UV protection under sunscreen. Pháº§n 2: KhÃ¡m phÃ¡ ná»n táº£ng triáº¿t lÃ½ Äiá»u trá» da hiá»u quáº£ vÃ bá»n vá»¯ng. ... See more reviews here. Third, in-vitro studies show that after ascorbyl glucoside is absorbed into the skin it is converted to pure vitamin C (though the rate of conversion is still a question mark). 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. You can usually find it right in the very first spot of the ingredient list, meaning it’s the biggest thing out of all the stuff that makes up the product. As cosmetic chemist kindofstephen writes on reddit "sodium hyaluronate disassociates into hyaluronic acid molecule and a sodium atom in solution". Read all the geeky details about Propylene Glycol here >>, Read all the geeky details about Ascorbic Acid here >>. Also, it's extremely unstable and hard to formulate. is drying. Not sold ... Obagi Medical Professional Serum 20% Vitamin C Serum Facial Treatment - 30 ml / 1.0 fl oz. To do that, I have to compare apple to apple, meaning I have to compare Obagi Vitamin C 20% serum (C20) with Glo-Therapeutics Cyto-luxe. Obagi won Rabach over with its 20% L-ascorbic, actives-packed formulation, which is well worth the price. It’s often used together with ethylhexylglycerin as it nicely improves the preservative activity of phenoxyethanol. It’s definitely a smart thing to avoid with sensitive skin (and fragrance of any type - natural is just as allergic as synthetic, if not worse!). C serums might cause a slight tingling on sensitive skin. 1 Review. :). HÃ nh trÃ¬nh phá»¥c há»i lÃ n da. 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. A stable and easy to formulate form of skincare superstar, vitamin C. In-vitro studies show that it shows all the three anti-aging benefits (antioxidant protection + collagen boosting + fading hyperpigmentation) that pure vitamin C does. At present, Timeless Skincare only makes 1 Vitamin C serum, so itâs not that confusing ð 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. Pháº§n 3: Äiá»u trá» chuyÃªn sÃ¢u rá»i loáº¡n sáº¯c tá». It goes well under makeup and absorbs well. If you are someone who likes to know what you put on your face then fragrance is not your best friend - there's no way to know what’s really in it. HÃ nh trÃ¬nh phá»¥c há»i lÃ n da. If HA does not tell you anything we have a super detailed, geeky explanation about it here. Refine by size, like 1oz., 1 oz / 30 ml, 1 fl oz, 1.0 oz and more. It's the salt form of famous humectant and natural moisturizing factor, hyaluronic acid. 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). 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. HÃ nh trÃ¬nh phá»¥c há»i lÃ n da. The Obagi C 15 is the serum most compatible with my skin. Designed to penetrate deep into your skin, this vitamin C serum provides effective antioxidant protection from UV damage as it brightens away hyperpigmentation and encourages the growth of collagen and elastin fibers. A nice odorless liquid used mainly as a superior solubilizer and efficacy booster for cosmetic active ingredients such as skincare bigshot vitamin C, self-tanning active DHA or the anti-acne gold standard, benzoyl peroxide. It accelerates the collagen synthesis in the cells to effectively counteract blemishes, fine lines and wrinkles. It provides superior antioxidant protection with deep penetration to the dermal layer. 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. With a snap, you can choose by country region of manufacture, such as United States or Japan. Read honest and unbiased product reviews from our users. Clinical significance has not been established. A quick search online indicated good reviews for Obagi, so I decided to buy it on the spot! The generic term for nice smelling stuff put into cosmetic products so that the end product also smells nice. Obagi Professional-C Serum 20%: rated 4 out of 5 on MakeupAlley. It's a sweet tasting sugar substitute that helps your skin to hold onto water when used in cosmetic products. 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. Exactly what it sounds: nice smelling stuff put into cosmetic products so that the end product also smells nice. I have tried other brands of serum but keep coming back to the Obagi. Thanks. Simple alcohol that's a great solvent, penetration enhancer, creates cosmetically elegant, light formulas, great astringent, and antimicrobial. I liked it okay, but it smelled like bacon, and I felt guilty spending that much money. $166 ... Obagi Professional-C Serum 20%. In this review, weâll discuss the key ingredients in this serum, how to use it, Obagi C Serum reviews from real customers, and more. 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. $127 now 15% off. 15ml of Obagi C20 costs JPY8640 while 30ml of Glo-Therapeutics costs $180. (We also checked Prospector for sodium hyaluronate versions actually used in cosmetic products and found that the most common molecular weight was 1.5-1.8 million Da that absolutely counts as high molecular weight). Chemically, this is definitely not true, as the two forms are almost the same, both are polymers and the subunits can be repeated in both forms as much as you like. Recommended by doctors, the Obagi is a serum that has garnered nothing but praise and approval in the skincare world. Reviews There are no reviews yet. It’s safe and gentle, but even more importantly, it’s not a feared-by-everyone-mostly-without-scientific-reason paraben. HA is famous for its crazy water holding capacity as it can bind up to 1000 times its own weight in water. It also helps to thicken up products and give them a bit more slip. Simply alcohol refers to ethanol and it's a pretty controversial ingredient. Please try again later! Find helpful customer reviews and review ratings for Obagi MedicalProfessional C Serum 10%, Vitamin C Facial Serum with Concentrated 10% L Ascorbic Acid for Normal to Oily Skin, 1.0 Fl Oz Pack of 1 at Amazon.com. It's a helper ingredient that improves the freeze-thaw stability of products, It's also a solvent, humectant and to some extent a penetration enhancer, It has a bad reputation among natural cosmetics advocates but cosmetic scientists and toxicology experts do not agree (read more in the geeky details section), Works best between a concentration of 5-20%, Boosts the skinâs own collagen production, If used under sunscreen it boosts its UV protection, Extremely unstable and oxidizes very easily in presence of light or air, Stable in solutions with water only if pH is less than 3.5 or in waterless formulations, Vit E + C work in synergy and provide superb photoprotection, Ferulic acid doubles the photoprotection effect of Vit C+E and helps to stabilize Vit C, Potent Vit. As one of the Obagi Professional-C Serums, this serum contains the highest percentage of vitamin C (L-ascorbic acid). :) You are almost done: please check your mailbox to confirm your email! My favorite brand of Vitamin C. I previously purchased a bottle of the Obagi Professional-C 15% serum and loved how it made my skin look and feel. It’s mainly a solvent for ingredients that do not like to dissolve in oils but rather in water. 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. No wonder it's popular in toners and oily skin formulas. Obagi Professional-C Serum 20% is formulated with 20% L-ascorbic acid, the only form of vitamin C suitable for topical application. (it's also alcohol, but with some additives to make sure no one drinks it). Obagi Professional-C Serum 20% uses stabilized ascorbic acid â the only form of Vitamin C that can be effectively absorbed by the skin. Overall, users reported the following results: In spite of this, if you search for "hyaluronic acid vs sodium hyaluronate" you will find on multiple places that sodium hyaluronate is smaller and can penetrate the skin better. The TL; DR version of HA is that it's a huge polymer (big molecule from repeated subunits) found in the skin that acts as a sponge helping the skin to hold onto water, being plump and elastic. A vitamin C moisturising cream can help but it doesnât penetrate as well as a serum which is why vitamin C serums have become so popular. Second, in vitro (meaning made in the lab, not on real humans) studies show that ascorbyl glucoside can penetrate the skin. Though SkinCeuticals vitamin C uses a patented formula that is proven to visibly reduce aging, I still highly recommend Obagi C serum. This is a hard task, and there is not yet a derivative that is really proven to be better in every aspect, but Ascorbyl Glucoside is one of the best options when it comes to vitamin C derivatives. C Serum is available in three different strengths of L-ascorbic acid: 10%, 15%, and 20%. Professional-C Serum options include formulas with 10, 15 and 20 percent l-ascorbic acid, a powerful form of vitamin C. But we found it difficult to navigate the companyâs website and locate information about the product, such as features and benefits, ingredients, expected results and even the price. Itâs safe and gentle, and can be used up to 1% worldwide. I use it in the morning after cleansing and rub the excess into the backs of my hands. It’s the - sodium form - cousin of the famous NMF, hyaluronic acid (HA). It’s pretty much the current IT-preservative. Obagi Professional-C Serum 20% is formulated for mature, sun-damaged skins that are coarse, leathery and deeply lined and it is also indicated for oily skins. 0 Reviews. 1,*. If you wanna know more, we wrote a more detailed explanation about what's the deal with alcohol in skincare products at alcohol denat. 5 times better absorption vs SkinCeuticals 2,* * Penetration and absorption data based on in vitro studies. Designed to penetrate deep into your skin, this vitamin C serum provides effective antioxidant protection from UV damage as it brightens away hyperpigmentation and encourages the growth of collagen and elastin fibers. Obagi Professional-C Serum 20% infuses your skin with L-ascorbic acid, the only form of vitamin C suitable for topical application. Like all of their products, their Obagi Vitamin C Serum is formulated by actual dermatologists, so youâll know theyâre safe to use and highly effective. 0 Reviews. It’s not something new: it was introduced around 1950 and today it can be used up to 1% worldwide. 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). Other than having a good safety profile and being quite gentle to the skin it has some other advantages too. Other than that it can also be used in hair care products where it gives a longer-lasting and more uniform coloring. I had been using another, much more expensive brand of vitamin C serum. LÃ m tháº¿ nÃ o Äá» phÃ²ng ngá»«a vÃ Äiá»u trá» cÃ¡c váº¥n Äá» vá» sáº¯c tá»? It can bind huge amounts of water and it's pretty much the current IT-moisturizer. Then, I tried the 20% Obagi version, and it's a winner. It also shows all the three anti-aging benefits (antioxidant protection + collagen boosting + fading hyperpigmentation) that pure vitamin C does. We do a Best of INCIDecoder email once a month with the most interesting products and ingredients we bump into. Like this, the products can stay more stable over time. It is a highly concentrated, high-performance serum that improves signs of skin ageing by stimulating collagen synthesis and visibly helping to improve pigmentation and brightens the skin. In 18 of 20 of the online reviews available, Obagi comes out on top.And its no surprise why, as youâll soon learn.Rich in vitamin C, vital nutrients, and antioxidants, Obagi can reverse the effects of aging by reducing wrinkles, minimizing fine lines, eveniâ¦ Let's see why: First, it's really stable and easy to formulate, so the problems that come with pure vitamin C are solved here. Obagi C Serum . Itâs quite a mouthful, so Iâll call it the Timeless Vitamin C serum, for ease of reference. Normal (well kind of - it's purified and deionized) water. While there are many outstanding vitamin C serums currently on the market, no other brand has been ranked as the number one serum as often as the Obagi vitamin C serum for your face line. c trá» khÃ¡c nhÆ° Retinol vÃ o buá»i tá»i), Náº¿u báº¡n sá» dá»¥ng kem dÆ°á»¡ng máº¯t, Há» thá»ng trá» nÃ¡m hiá»u quáº£ Obagi Nu-Derm System. ... Obagi System Professional-C 10% Vitamin C Serum by Obagi for Women - 1 oz Serum. It has many instant benefits: it's a great solvent, penetration enhancer, creates cosmetically elegant, light formulas, great astringent and antimicrobial. 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!). Instead of getting a new bottle of Obagi C10, I broke out one Iâd been keeping for a while â the Timeless 20% Vitamin C + E + Ferulic Acid Serum. We will assist you locate the top-rated obagi vitamin c serum 20 with factors, function, and coupons. We don't have description for this ingredient yet. The 20% serum tended to make my face red but then I have very reactive skin. Once I finished it, I decided to move up to the 20% formula and can't wait to see how my skin will continue to improve while using it. According to a manufacturer, it might even prevent the formation of split ends. In large amount can be very drying. Cheap Obagi Vitamin C Serum 20 Deal .