True K-beauty fans know and love the Klairs Vitamin C Serum. Why? It’s a powerful and potent treatment that attacks brown spots and acne scars with 5 percent vitamin C. Read on to discover exactly how thrilled Jacqueline was when the Klairs Freshly Juiced Vitamin C Serum faded her sun spots faster than any other product that claimed to do so…The skin issue Jacqueline wanted to improve:  What happened to her skin the first time she tried it: The first time I applied the serum, my skin stung a little. I felt a slight rise in the surface temperature of my skin for about 10 minutes and then it started reverting back to normal. What happened after a few more days of usage: Show
After three days of application, my skin started to get used to the vitamin C and I didn’t feel the sting anymore. It turned into a very mild serum. How Jacqueline uses the Klairs serum in her routine: Immediately after I double cleanse and apply the Missha First Treatment Intensive Moist essence, I apply two to three drops of the serum onto my cheeks (which are the parts that get the most sun exposure and get really dry). The serum feels like a light oil in the beginning and then it gets quickly absorbed into the skin after seconds of application. My skin feels warm and plumped up when I gently massage the serum into the skin. After the serum absorbs, I put on the Klairs Rich Moist Soothing Cream and sunscreen. Jacqueline’s Bottom Line: My skin has such an even tone and a glow to it since I’ve been using the Klairs vitamin C serum. It’s very potent but at the same time milder than other vitamin C serums. I would recommend it to people like me who are super meticulous about flawless, even skin tone and don’t like the sting of most other acid-based products. I especially recommend to people who have normal to dry skin, as this serum is also super moisturizing. BTW: Right now, all Klairs products are 20% on Soko Glam using the code KLAIRS20. Offer ends 4/6. + What’s your favorite vitamin C serum? Share your pick below with us!We earn a commission if you buy through our links at no additional cost to you. Klairs Freshly Juiced Vitamin Drop
Product Name: Freshly Juiced Vitamin Drop Product Description: K-Beauty Klairs offers a simple and affordable Vitamin C booster with 5% L-Ascorbic Acid and Centella Asiatica. Brand: Dear, Klairs Offer price: 23.00 Currency: USD Learn More... Product Summary
Pros
Cons
Klairs Freshly Juiced Vitamin Drop
Product Name: Freshly Juiced Vitamin Drop Product Description: K-Beauty Klairs offers a simple and affordable Vitamin C booster with 5% L-Ascorbic Acid and Centella Asiatica. Brand: Dear, Klairs Offer price: 23.00 Currency: USD Learn More... Product Summary
Pros
Cons
Shop Now Klairs Freshly Juiced Vitamin C Serum ReviewDear, Klairs is a Korean beauty brand by Wishtrend that emphasizes simple formulas at affordable prices with no harsh ingredients. I'd describe the brand as a Korean version of The Ordinary (known for its budget products) with the style and aesthetic of Australia-based Aesop.
Among its collection, Klairs Freshly Juiced Vitamin Drop stands out as the No. 1 bestseller with over 1 million units sold (according to Wishtrend) and over 7,500 reviews. Does this product, which retails for only $23, live up to the huge hype and rave reviews? Let's find out! ⭐ Shop Now Ingredients: 2.5/5.0First of all, a good Vitamin C Serum should serve 3 main functions:
(source: The Roles of Vitamin C in Skin Health, 2017) Second of all, there are 2 general types of Vitamin C:
(source: Stability, Transdermal Penetration, and Cutaneous Effects of Ascorbic Acid and its Derivatives, 2012) In this case, Klairs uses 5% L-Ascorbic Acid at a pH level of 3.81 (source: Sokoglam). This is considered a low concentration of Vitamin C and can be used as a booster by adding a few drops to your regular moisturizer or serum.
Research by Dr. Sheldon Pinnell, the founding scientist of SkinCeuticals, has demonstrated that L-Ascorbic Acid can only penetrate the skin at a pH level below 3.5 (source: Topical L-Ascorbic Acid: Percutaneous Absorption Studies, 2001). This is due to a concept called Free Acid Value. In short, more free acid forms of L-Ascorbic Acid are available at lower pH levels and this is a good thing because only the free acid form can penetrate your skin's oily barrier. (for more information, check out LabMuffin's excellent guide) At a pH of 3.81 (and with only 5% L-Ascorbic Acid), it's unlikely that you're going to get much Vitamin C into your skin, which means you won't get those amazing skin benefits that we discussed earlier (brightening, tightening, and antioxidant protection). Dear, Klairs also included a few enhancers:
Overall, I give the ingredients a score of 2.5. (the low level of Vitamin C combined with a less-than-optimal pH level means you're unlikely to get much skin absorption) Shop Now Product Design: 2.0/5.0When it comes to product design, I’m mainly focused on overall functionality and usability, although I do occasionally give bonus points for exceptional aesthetics. For vitamin C serums, it’s important to protect the contents from light, air, and heat since vitamin C (especially LAA) naturally oxidizes over time and loses its potency. Unfortunately, Klairs does not pass this test. While its product design is indeed very aesthetic, the transparent dropper bottle simply does not effectively block out UV light or stop air (oxygen) from getting in.
This is a big problem as L-Ascorbic Acid is notorious for its stability issues (Klairs claims it uses a "Hybrid Stabilization Technology" but I didn't find any details about what this is). You can keep this product in your fridge to help fend off oxidation and preserve potency. The gold standard is an opaque container with a pump dispenser (ideally an airless one). Drunk Elephant C-Firma Day Serum and Clinique Dark Spot Corrector are prime examples of good product design in action. Overall, I give the product design a score of 2.0. (does NOT prevent oxidation) Shop Now Texture & Smell: 5.0/5.0Klairs Vitamin C Serum has a clear liquid consistency that is easy to apply and feels kind of like a light oil when you spread it over your face. Most people said the product was absorbed quickly and didn't cause any skin irritation.
There's a bit of a smell and warmness when you apply it but this goes away quickly. Finally, if you have any allergies or sensitive skin, please note that there's trace amounts of orange peel oil and lavender oil present. Overall, I give the texture & smell a score of 5.0. (easy to apply, no lingering smell) Shop
Now Results: 5.0/5.0Of course, the most important question is, does Klairs Vitamin C Serum actually work? Given the problems that we identified earlier with the formulation (5% LAA at pH of 3.81) and product design (transparent dropper bottle), I was very surprised that the overall rating was a high 4.5+ even with over 7,500 reviews across multiple retailers. The percentage of 5-star reviews is also extremely high:
Now, I know that Amazon has historically had a huge problem with fake reviews and sellers who engaged in rating manipulation. As CNBC explains in the video below, one of the telltale signs is an extremely high 5-star rating percentage:
On the other hand, the reviews were very positive across multiple merchants which would be harder for sellers to game. Most were genuine comments about the product like:
In addition, I take comfort in the fact that Yes Style has over 4,000 reviews and they only allow verified buyers to write reviews (unlike Amazon which allows everyone). Overall, I give the results a score of 5.0. (very high ratings across multiple merchants) Shop Now Price: 5.0/5.0At under $20 per oz, Klairs Vitamin C Serum is one of the most affordable on the market. It's a great way to incorporate a bit of Vitamin C into your regular skincare routine! If you're a bargain hunter (like me), you might want to consider these gift sets that include Freshly Juiced Vitamin Drop along with popular Klairs products:
And if you're still shopping around, here are a few popular alternatives:
Overall, I give the price a score of 5.0. (it's super affordable!) Shop Now Klairs Freshly Juiced Vitamin C Serum ReviewsFinally, I’ve handpicked two customer reviews that I feel are fair and representative:
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Is Klairs Vitamin C good for beginners?The brand says it can be used twice a day, but since I prefer to use my AHA or BHA in the evening, I use it in the morning along with a good sunscreen. This serum contains 5% of vitamin c which is very minimal, and so it will not be irritating to a beginner.
Can I use dear Klairs vitamin C serum everyday?Those with very sensitive skin can continue with the serum after you've applied your balancing/hydrating toner to avoid potential irritation. Vitamin C is acidic, so if you're using it for the first time, use it every other day and gradually increase to daily applications.
Is it okay to use Klairs vitamin C serum?Klairs Freshly Juiced Vitamin Drop contains 5% ascorbic acid and is suitable for all ages and skin types, even if you have the most sensitive skin. Benefits: Multi-solution serum that transforms and rejuvenates skin.
Is Klairs serum good?4.0 out of 5 stars Best results with night application of serum. It's good for sensitive, oily skin. Gives a smooth, non-sticky appearance. Best results if you apply at night.
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