A Slice of Vitamin C + Klairs Freshly Juiced Vitamin Drop Review

I feel like I’ve had spots, scars, and acne-induced post-inflammatory hyperpigmentation (PIH) on my face ever since I was born. Now that my acne is a bit more under control, meaning I don’t get as much new PIH as I used to, I figured now is a good time to try something new to even out my skin tone. I’d also love to clear away some of these little freckles from almost two decades spent under that darn Hawaiian sun…Although let’s be honest, that’s probably from the three months I spent in Thailand with zero sun protection.

But anyway, I didn’t want to undo all of my hard work in acne treatment by introducing a harsh new active like an AHA! Plus, my skin has been on the dehydrated side lately. What do?

Vitamin C, that’s what!

Dear Klairs Freshly Juiced Vitamin Drop Vitamin C Serum review - dropper
Oh mah darlin’, oh mah darlin’, oh mah daaarlin’…mandarin oranges. (Citrus props slightly unrelated to product.)

This product was provided by Wishtrend for review. All content on A River Lily reflects my honest opinion. This post contains some affiliate links. Check out my Policies and Transparency page for more info. 

Vitamin C: The Juicy Benefits and Sour Issues

Vitamin C has a long history as an antioxidant found in foods like citrus fruits, as well as a beneficial ingredient in topical skincare. There’s a LOT of information out there, so here’s a summary of why vitamin C may be a good addition to your routine:

Huh? So what’s the issue here? 

The purest form of vitamin C in the skincare industry, called L-ascorbic acid (L-AA), is widely effective yet unstable on its own. This means it’s more likely to oxidize (go bad) due to light, heat, and air exposure if the L-AA has not been formulated to keep well/stable for long periods of time, even when sealed. When it oxidizes, it becomes not just ineffective/inactive, but potentially harmful if used on the skin. The OST C20 Vitamin C Serum is a favorite, yet is famously delicate due of its unstable formulation; some people even avoid buying it in the summer due to the potential for excessive heat exposure during shipping. Commonly, these serums have a 3-month shelf life after opening. If it’s gone from the clear/light champagne color to an amber color, then it’s done for. Doesn’t that seem like a waste? 😦

More “stable, [sic] formulations of L-AA” include sodium ascorbyl phosphate (SAP) and magnesium ascorbyl phosphate (MAP) (thanks to my SO for helping me with the chemistry research). SAP and MAP have seen increased use in skincare products, but L-AA, vitamin C’s “purest” form, is almost always more effective than its stabilized forms when used in similar amounts and methods.

Plus, L-ascorbic acid “must be formulated at pH levels less than 3.5 to enter the skin,” and the maximum concentration for best absorption is 20%. This is where I realize I need to get some damn pH testing strips. In the meantime, I’ll defer to Snow White and the Asian Pear to best explain the importance of pH! pH level comes into play in multiple steps of your routine, from cleansing to toning.

Some further reading on vitamin C in the cosmetics/skincare world: Vitamin C formulationsSAP info, Safety report (PubMed).

And this is why I’m initially wary of yet overall curious about L-AA-based vitamin C serums. Also, Klairs Freshly Juiced Vitamin Drop uses 5% L-AA, probably the smallest amount I’ve seen thus far in serums that feature vitamin C. Let’s see how it does.

The Claims

Klairs (sometimes listed as Dear, Klairs) was established in Seoul, South Korea in 2010. Their products cater especially to those with sensitive skin. Their Freshly Juiced Vitamin Drop reflects that philosophy:

“Designed with naturally effective ingredients that are safe and non-irritating, the Freshly Juiced Vitamin Drop is made to energize and rejuvenate your skin with the power of pure vitamin C !”

It claims the following:

  • Treats dull skin tone
  • Treats enlarged pores
  • “Non-irritating
  • Transforming
  • Multi-solution”
  • Anti-aging

And recommends these tips:

  1. Use during the day
  2. “minor tingling may be experienced” if you’re a vitamin C virgin, apparently.

It doesn’t specify evening skin tone, though it’s a pretty standard by-effect among vitamin C serums in my observation.

Here’s what I find attractive in particular about this serum compared to some other vitamin C faves, like the unstable OST C20 Vitamin C Serum I mentioned earlier, Paula’s Choice Resist C15 Super Booster, and the $162 Skinceuticals CE Ferulic Vitamin C Serum (hyperventilates):

  • It’s non-active, meaning non-exfoliating, mostly because of its low percentage of L-AA (OST C20 and C21.5 have 20% and 21.5% respectively)
  • Claims to have an “innovative formula” gentle enough for sensitive skin
  • Claims that any slight color change does not influence the effects of the product
  • Pretty affordable at $23 per 35ml bottle…I’m all about that affordability

That being said, I am initially doubtful of its low L-AA percentage. It currently seems uncommon for vitamin C serums with this small amount of vitamin C to make a tangible difference within the 3-month expiration date after opening. Plus, like I mentioned earlier, the maximum amount for good absorption is 20% vitamin C. We shall see…

Ingredients List:

Dear Klairs Freshly Juiced Vitamin Drop Vitamin C Serum review - box ingredients

Dear Klairs Freshly Juiced Vitamin Drop Vitamin C Serum review - box ingredients

Full ingredients list from their product pages—see Cosdna for more details. Those with 1 or higher “Acne” or “Irritant” value, as well as a red “Safety” value, are bolded*:

Water, Propylen Glycol, Ascorbic Acid(5%, Hydroxyethylcellulose, Centella Asiatica Extract, Citrus Junos Fruit Extract, Illicium Verum(Anise) Fruit Extract, Citrus Paradisi(Grapefruit) Fruit Extract, Nelumbium Speciosum Flower Extract, Paeonia Suffruticosa Root Extract, Scutellaria Baicalensis Root Extract, Polysorbate 60, Brassica Oleracea Italica (Broccoli) Extract, Chaenomeles Sinensis Fruit Extract, Orange Oil Brazil, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Disodium EDTA, Lavandula Angustifolia (Lavender) Oil, Camellia Sinensis Callus Culture Extract, Larix Europaea Wood Extract, Chrysanthellum Indicum Extract, Rheum Palmatum Root Extract, Asarum Sieboldi Root Extract, Quercus Mongolia Leaf Extract, Persicaria Hydropiper Extract, Corydalis Turtschaninovii Root Extract, Coptis Chinensis Root Extract, Magnolia Obovata Bark Extract, Lysine HCL, Proline, Sodium Ascorbyl Phosphate, Acetyl Methionine, Theanine, Lecithin, Acetyl Glutamine,SH-Olgopeptide-1, SH-Olgopeptide-2, SH-Polypeptide-1, SH-Polypeptide-9, SH-Polypeptide-11, Bacillus/Soybean/Folic Acid Ferment Extract, Sodium Hyaluronate, Caprylyl Glycol, Butylene Glycol, 1,2-Hexanediol

*Note that these values do not indicate universal truths. The amount of ingredient actually in the product, as well as the product’s overall formulation, greatly affect the potential for irritation. Not everyone will be sensitive to these bolded ingredients, and you may be sensitive to ingredients that are not bolded. Every individual’s skin may react differently. Your Mileage May Vary (YMMV).

Only one ingredient bolded. Not too shabby. But again, it’s not recommended to rely on Cosdna too much, as YMMV!

The Evidence

Performance:

First of all, a biiiiig shoutout to /u/snailslimeandbeespit for pH-testing this after I was all like, “I NEED TO MAKE SURE THIS ISN’T AT AN EXFOLIATING pH BUT I CAN’T TEST IT PLS HALP”:

“…My results are kind of wonky because two of the boxes turned colors that put them in completely different ranges–one box appeared to test almost at 7, the other closer to 5, and this happened two times. Maybe something weird is going on with my serum, or maybe the oiliness of the product is skewing results? In any case, it’s not in a pH range where it’s going to be exfoliating.

…Okay, I tested it again, and I’m going to give a reading of “5-ish.””

Seriously, thanks for SOS (saving our skins). If you’re out there, let me know so I can, uhh, send more snail slime and bee spit in your direction!

Anyway, because we’ve established this isn’t an “active,” I use this right after putting on Dr. Jart+ Ceramidin Liquid during my PM routine. You can also use this in the morning, especially because of vitamin C’s photoprotective qualities. I started using this at the end of November and took my “after” photos about five weeks later. You usually won’t see an effect with the naked eye until 4-8 weeks of use.

I like to put about 3-4 drops on my face to start: forehead, nose, and each cheek. The box suggests half a dropper full for normal to combination/oily skin, but I find that using more than 3-4 drops is a bit much (and I’ll tell you why in a minute). The serum goes on smoothly, and it even warms up as I rub and pat it all over my face. It isn’t uncomfortable, but it might be slightly alarming if you aren’t expecting it. It’s all good. It’s fine. You’re not dying.

Dear Klairs Freshly Juiced Vitamin Drop Vitamin C Serum review - dropper
Convenient dropper cap!
Dear Klairs Freshly Juiced Vitamin Drop Vitamin C Serum review - bottle dropper
I’m actually curious if the dropper is just a bit too short. It stops right at that arrow, which isn’t quite the bottom of the bottle. Or is that an optical illusion? Hmm. We’ll cross that bridge when we get there…

The opalescent, cleanly-designed packaging is lovely, aside from the clear bottle; vitamin C serums are usually best stored in darker bottles like amber, because of the aforementioned oxidation issue. I always put this serum in the box after using it and I noticed absolutely no discoloration after a couple of months. And as mentioned above, Klairs claims discoloration would not signify a decreased effectiveness anyway.

Now, I say I try not to use too much because while it is smooth, it also feels quite oily. It may be uncomfortable especially if you’re oily-skinned like me. However, my skin actually turns oily-dehydrated occasionally—like during the cooler, slightly-less-humid “winter” I’m experiencing now!—and my skin feels fine the next morning after using this serum. It does feel somewhat hydrating, actually.

If you’re like me and like to minimize your wait times, you can blot with a face towel or tissue if there’s still some residue. The box actually suggests adding a few drops of this in a “serum or lotion” especially if you have sensitive skin. I recommend that too, as it can also eliminate a whole step from your routine. Charlotte Cho does it, so if you won’t listen to me, then listen to her.

Dear Klairs Freshly Juiced Vitamin Drop Vitamin C Serum review - Arrested Development walk gif
Me, when you don’t listen to me. 😦

Alright, alright. Did it help with my PIH? I’m sure you want the results. Well, you got ’em!

(I did my best to adjust the photos for color balance/white balance only. Also, please excuse my unkempt brows and inability to take selfies.) 

Dear Klairs Freshly Juiced Vitamin Drop Vitamin C Serum review - before and after effects scars hyperpigmentation PIH acne aging spots

Did you catch that?

Dear Klairs Freshly Juiced Vitamin Drop Vitamin C Serum review - before and after effects scars hyperpigmentation PIH acne aging spots
I’m not sure why I also drew arrows to alert you to the circles, which are already alerting you.

Aside from that one newly-formed PIH spot (due to some slight sleep deprivation and stress, woops), what do you think? Here are some closer shots:

Dear Klairs Freshly Juiced Vitamin Drop Vitamin C Serum review - before and after effects scars hyperpigmentation PIH acne aging spots
Yeah, ignore that self-inflicted PIH.

Did it work? I think so. My skin looks slightly brighter, and those PIH spots are fading more quickly than usual! Like I explained earlier, I had my doubts with low-percentage vitamin C serum. I suppose because this has L-AA, albeit a much smaller percentage of 5%, this is still more effective than SAP- or MAP-based serums (I have yet to have a worthwhile experience with those). Very interesting (anecdotal) discovery! I imagine this PIH would be almost totally gone within a total of 3 months, which is actually the shelf life of this and most other vitamin C serums. Like everything you usually see everyday, I didn’t notice the PIH very gradually fading as I checked them daily. But this is where I truly discovered the importance of taking “before” and “after” shots, because those are where you can see that change is actually happening.

Fragrance:

Not much to speak of. There’s a somewhat herbal-ointment-ish scent, but it isn’t strong and doesn’t irritate me. However, it did initially make me tear up a little when the serum got too close to my eyes. So just don’t do that.

Value: 

It’s available on Wishtrend for USD$23, currently offering free shipping! Also on Sokoglam for the same price, with free shipping on orders of $50+.

The Verdict

It worked! It didn’t play as nicely with the rest of my routine as I wish it did, but the bottom line is: it worked.

My main issue with Klairs Freshly Juiced Vitamin Drop is how oily it can feel if you use more than, say, 3-4 drops. That is, unless you decide to mix it in with another serum or lotion as suggested. However, despite having only 5% L-ascorbic acid, it clearly works the way it’s intended. It’s not quite maximum-strength, but it really doesn’t mean to be. And that’s totally fine. Everyone certainly reacts differently, and it seems Klairs has successfully formulated a product that is friendly for sensitive-skinned folks while maintaining efficiency.

This should work for all skin types, but its place in your routine can vary depending on your skin type. Normal to combination/oily folks may be more comfortable using it in cooler/drier seasons, or mixed in with another skincare product rather than by itself. For my own personal skin type and skincare goals, I am still willing to check out other, tougher vitamin C serums, but I’m quite happy to use up this entire bottle if I can.

Overall Rating: 3.75 / 5 

Rating system:
5 / 5: HOLY GRAIL STATUS. I dare you to pry this from my cold, dead, kpop-glowy hands.
4 / 5: I really liked this! Would repurchase until I find a better alternative.
3 / 5: So-so. Unimpressive results, but may work better for others with different conditions.
2 / 5: Would not repurchase. Possibly caused some issues for me, but may work for others.
1 / 5: This lied to me. It did nothing that it said it would, and caused some issues.
0 / 5: Do not buy this. No one should have to suffer the way I did.

Dear Klairs Freshly Juiced Vitamin Drop Vitamin C Serum review - bottle
You know what? I did a proper photoshoot with these freakin’ mandarins. You’re damn right I’m gonna include these sensual, borderline boudoir shots.

Have you tried anything by Klairs before? What are your vitamin C recommendations? ☺

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38 thoughts on “A Slice of Vitamin C + Klairs Freshly Juiced Vitamin Drop Review

    1. I’m actually currently using C20! It’s hard to say which one is ultimately “better” than the other because it really depends on your skin and personal skincare goals. C20 has been much more effective for clearing up hyperpigmentation, which I personally prefer because that’s my current skin goal, but the Klairs serum is much gentler (no wait time because it’s not “active”) and has more moisturizing properties. Klairs is generally better for drier skin, too, although its skintone-evening ability isn’t as pronounced. I hope this helps!

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  1. Great review, I’ve been seeing mixed feedback on this product, finding a well formulated vitamin c serum is hard and to find one that is cheap and gives amazing results is rare, I’ve seen many vitamin c serum which amazing reviews on Amazon but still very hesitant about it.

    Liked by 1 person

    1. Thanks for stopping by! I hope this was helpful in your overall search. I’m confident in recommending this, although skincare is never 100% certain until you actually try it! Good luck, and let me know if you have questions. 🙂

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  2. Hi! Thank you so much for the review! 85 was very informative 🙂 I enjoyed how in depth you got and those result pictures are amazing! I’m happy for you!! This product has been hovering in my shopping cart for awhile, so I’ve been reading a toooooon of reviews lately. ;-; Hahaha In your opinion, could teenagers use this product?

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    1. Haha I know the pain of waiting a looong time to buy something. It definitely depends on how sensitive your skin is, but I found this to be very gentle and think it would be suitable for any skin type or age (above 12 years old or so, that is). Klairs is also generally a very sensitive-skin-friendly brand, so if this is something that fits in your budget, then it is worth a shot. 🙂 I hope this helps! If you end up getting this serum, please let me know how it goes! I would love to hear different perspectives and experiences of this product!

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  3. Ahh I’m sorry I’m not sure if my comment posted or not because I’m new to commenting on blogs? Hopefully you saw my first comment haha😅

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  4. This did nothing to me in terms of visible changes / improvement, but, I understand it to be more about long-term maintenance and prevention. However, given the fact that I own other, more effective Vitamin C products (OST and The Ordinary Vit C Suspension), I don’t really conaider this worth the money any more: However, for a very sensitive skin, this may be an excellent way to get used to this ‘magical ingredient’ before upgrading to more potent formulas.

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  5. Thank you for the review! I bought this specifically for my skin to get used to the low % first. Do you however know how I would incorporate this with my lotion like Charlotte Cho said? Does she mean add it to lotion and use it where you would use the lotion in your routine…As I understand Klairs should normally go after cleansed skin or so. I guess I haven’t seen too much of anything with this product yet. I should probably try it morning and night and give it another try.

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  6. Hey! Thanks for this informative post! I’ve used up an entire bottle of this vitamin c serum and repurchased another one but only now found out that it isn’t an active and the pH is not in the usual vitamin c pH range. I’m about to incorporate BHA (cosrx BHA power liquid) into my routine and now I’m confused where I should use this vitamin c… As it is not an active would it then mean that I should use it in the usual serum stage of my routine instead of right after cleansing and pH adjusting my skin , and the BHA in that place instead? Really hope you read this and reply! Thanks!

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    1. Hi Tania! Yes, I do wait for a couple of reasons: (1) To let the serum “sink in” to my skin and work uninterrupted, and (2) to let the product fully dry before applying the next product. Hope this helps!

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  7. hye..thank u so much for your review.. for your opinion is it okay to use this daily during am and pm routine? do u think that’s too much?

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    1. It depends on how oily or dry your skin tends to be. If your skin is dry, it is worth trying in the morning (you won’t truly know if it works for you until you try it!). However, the texture may be off-putting because it does have a slightly oily feel–I wouldn’t recommend this in the morning if you use all-over face makeup such as foundation. Evening-only use is still effective, though!

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