You Can Mix L-Ascorbic Acid at Home. Keeping It Alive Is the Hard Part.
The one home formulation with a genuinely coherent case, taken apart on its own terms: the pH window, the oxidation clock, and what a browning serum has actually become.
Dear Klairs combines three vitamin C forms (THD ascorbate, sodium ascorbyl phosphate, ascorbic acid) with niacinamide, six B-vitamins, glutathione, and humectant chemistry in a pad format. The multi-vitamin platform is more comprehensive than typical vitamin C prep pads.
Dear Klairs' 2024 Freshly Juiced Vitamin Skin Prep Pads combine three vitamin C forms (THD ascorbate + sodium ascorbyl phosphate + pure L-ascorbic acid) with niacinamide, six B-vitamins, glutathione, and humectant chemistry in a convenient pad format. At $29.99 for 80 pads the value is reasonable. Sophisticated multi-vitamin platform with the convenience of tear-away pad packaging.
Released in 2024 with under 2 years on market and approximately 220 reviews accumulated. Dear Klairs brand-level credibility supports baseline confidence; this specific SKU is still building independent review track record.
The case for it
What would change this: A declared concentration would move this to a firmer reading of the dose.
Same rule for everyone. “Promising” is the verdict on 7,858 of 45,024 concern verdicts across the catalog; rule R9p decided 7,858 of them. Unchanged since September 5, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
The case for it
What would change this: A declared concentration would move this to a firmer reading of the dose.
Same rule for everyone. “Good choice” is the verdict on 9,564 of 45,024 concern verdicts across the catalog; rule R5 decided 9,072 of them. Unchanged since September 5, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
The case for it
What would change this: A declared concentration would move this to a firmer reading of the dose.
Same rule for everyone. “Good choice” is the verdict on 9,564 of 45,024 concern verdicts across the catalog; rule R5 decided 9,072 of them. Unchanged since September 5, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
The case for it
What would change this: A declared concentration would move this to a firmer reading of the dose.
Same rule for everyone. “Promising” is the verdict on 7,858 of 45,024 concern verdicts across the catalog; rule R9p decided 7,858 of them. Unchanged since September 5, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
Does the jobDoes what a toner is for: not alcohol-driven, adds something real. Not measured from the label: restores skin pH, plays well with what follows.
A verdict is DermApproved’s assessment of how well a product’s ingredients fit a concern — never a claim about what the product treats. Evidence dots and collected reviews sit beside it and are never blended in. Rules 0.5.1 · evidence table ev-2026.09-r228 · how we decide
Klairs built its name on restraint, the gentle Supple Preparation toner and a beloved low-percentage vitamin C drop that won people over precisely by not being aggressive. So there is a small irony in the brand's 2024 prep pads going maximalist, stacking three forms of vitamin C, six B-vitamins, and liposomal glutathione into a single saturated cotton round. The interesting question is whether that multi-vitamin ambition delivers more than the brand's famously simple serum, or whether it is mostly an impressive ingredient label.
The vitamin C architecture is genuinely layered, and this is the part with the firmest footing. Ascorbyl tetraisopalmitate, an oil-soluble and stable derivative, sodium ascorbyl phosphate, the same water-soluble form that anchors the brand's iconic drop, and pure L-ascorbic acid for direct, unbuffered activity together cover different penetration depths and stability profiles. All three sit on well-established ground individually, and the logic of combining them is sound: each form behaves differently in the skin, so a blend hedges across mechanisms rather than betting on one. Niacinamide sits at the fourth INCI position, suggesting a meaningful concentration, and brings well-documented barrier and brightening support that pairs naturally with the vitamin C. Beyond that, the formula gets more speculative. The six-vitamin B complex, spanning thiamine, riboflavin, pyridoxine, biotin, folic acid, and B12, is the most distinctive flourish on paper, but the published evidence for topical B-vitamins other than niacinamide is genuinely limited, so it reads as comprehensive positioning more than proven workhorse chemistry. Liposomal glutathione is the master-antioxidant inclusion, with promising but smaller evidence topically; glutathione's brightening reputation rests largely on oral and systemic use, and the liposomal delivery here is a reasonable attempt to improve penetration rather than a guarantee of it. A multi-form hyaluronic acid, glycerin, beta glucan, panthenol, allantoin, and centella round out a humectant-and-soothing cushion that buffers the vitamin C's edge.
In use, the format is the genuine selling point. These are pre-saturated single-use pads with a light, watery essence and a faint vitamin C scent, no added fragrance, and the four-section tear-away design lets you control how much cotton you actually use. The mild mechanical sweep of a pad lifts the day's residue while delivering the actives, and for travel or a fuss-free morning step, the convenience is real and immediate, a refreshing brightness on contact with the cumulative pigmentation and tone work building over roughly four to eight weeks of consistent use. It is fragrance-free and fungal-acne-safe, which keeps the door open for sensitive and breakout-prone skin.
The trade-offs are worth naming directly. That pure L-ascorbic acid, the most clinically validated but also the most irritating of the three vitamin C forms, can tingle or sting on reactive skin, so anyone who flares easily should patch test before committing. The pad format, convenient as it is, generates more packaging waste than a liquid you decant with a cotton round, which matters to environmentally minded buyers, and eighty pads deplete faster than the count implies, lasting roughly one to two months at daily use. And the honest framing of the B-vitamin and glutathione story is that the evidence supports the vitamin C and niacinamide claims far more confidently than the rest of the vitamin roster, so some of the formula's complexity is more reassuring than proven.
Value lands in fair territory. At just under thirty dollars for eighty pads, roughly thirty-seven cents each, it sits comfortably within the K-beauty multi-active prep-pad range, and for the genuine sophistication of the vitamin C layering plus the pad convenience, that is reasonable rather than remarkable. Data confidence here is medium, reflecting a 2024 launch with a still-growing review base, so the scoring leans on formulation quality and the brand's established track record more than on years of accumulated user feedback.
The pad earns a recommendation for K-beauty enthusiasts who want multi-vitamin brightening in a grab-and-go format, frequent travelers who appreciate pre-measured single applications, and anyone curious about a more layered vitamin C approach than a single derivative. Reach for something else if your skin reacts to pure L-ascorbic acid, if you would rather avoid single-use pad packaging on principle, or if you are optimizing strictly for cost per application, where a liquid serum will stretch further. For its intended buyer, though, it is a polished, convenient brightening step that makes good on most of what its long ingredient list promises.
There is a useful way to think about where this sits relative to the brand's beloved drop, since that comparison is the one most Klairs fans will be making in their heads. The drop is a focused, single-derivative serum you control entirely; these pads are a broader, gentler, multi-active prep step that brightens while it preps the skin for what follows. They are not really competing for the same job. The pads make the most sense as a morning vitamin-and-hydration sweep that wakes the skin up and lays a brightening base, after which a more targeted serum or moisturizer does the heavy lifting. Read that way, the long, maximalist ingredient list stops looking like overreach and starts looking like a sensible all-in-one first step for people who want some brightening insurance without committing to a high-strength serum.
On the practical side, used in the morning these pair naturally with a sunscreen, since any vitamin C step benefits from daytime UV protection layered over it, and at night they slot in cleanly before heavier treatments. Swiping gently rather than scrubbing keeps the mild mechanical action useful instead of irritating, and the tear-away sections genuinely help you ration the cotton so the pack lasts closer to its full window. Brand heritage is on the steadier end here, an established Korean house with more than a decade behind it and a real reputation for gentle formulating, which lends some credibility to the medium-confidence score even with the newer launch and modest review count. For the K-beauty enthusiast who wants convenient, layered brightening and trusts the Klairs name, these are a genuinely likeable addition to a routine, ambitious on paper and pleasant in practice, asking only that you keep realistic expectations about which parts of that vitamin roster are doing the real work.
The hero actives that drive this product's performance.
| Ingredient | Function | Evidence |
|---|---|---|
| Triple Vitamin C Complex (Ascorbyl Tetraisopalmitate + Sodium Ascorbyl Phosphate + Ascorbic Acid) | Three vitamin C forms — THD ascorbate (oil-soluble), sodium ascorbyl phosphate (stable water-soluble), and pure L-ascorbic acid — provide multi-mechanism brightening chemistry suited to different skin penetration depths. | Limited for Hyperpigmentation |
| Niacinamide | Fourth INCI position — meaningful concentration providing barrier support and brightening that pairs synergistically with the vitamin C complex. | Emerging for Hyperpigmentation |
| B-Vitamin Complex (B1, B2, B6, B7, B9, B12) | Six B-vitamins (thiamine, riboflavin, pyridoxine, biotin, folic acid, cyanocobalamin) provide multi-vitamin antioxidant and skin-conditioning support — distinctive multi-vitamin platform. | Not yet assessed |
| Glutathione (Liposomal) | Master antioxidant in liposomal delivery format for improved skin penetration. Provides brightening and skin-clarity claim that distinguishes from typical vitamin C alone. | Not yet assessed |
| Multi-Form Hyaluronic Acid + Glycerin + Beta Glucan (Humectants) | Multi-source humectant system supports immediate hydration alongside the vitamin and brightening chemistry. | Established mechanism for Dehydration · established mechanism |
Ingredient standings describe the active at treatment-level doses and vehicles; this product's own condition grades weigh its actual formula.
Water, Butylene Glycol, Propanediol, Niacinamide, Caprylic/Capric Triglyceride, 1,2-Hexanediol, Glycerin, Hydroxyacetophenone, Arginine, Carbomer, Ascorbyl Tetraisopalmitate, Sodium Ascorbyl Phosphate, Ascorbic Acid, Sodium Hyaluronate, Hyaluronic Acid, Glutathione, Adenosine, Allantoin, Panthenol, Centella Asiatica Extract, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra (Licorice) Root Extract, Biotin, Folic Acid, Riboflavin, Pyridoxine, Thiamine, Cyanocobalamin, Tocopheryl Acetate, Dipotassium Glycyrrhizate, Beta-Glucan, Pentylene Glycol, Citric Acid, Ethylhexylglycerin, Caprylyl Glycol, Disodium EDTA
toner
AM & PM
Tear off needed pad section, swipe across face after cleansing. The pad format provides mechanical exfoliation-friendly application alongside the chemistry. Follow with serum and moisturizer.
Immediate refreshing brightness; cumulative pigmentation improvement over 4-8 weeks.
Triple vitamin C formulations leverage different vitamin C forms for layered delivery. Pure L-ascorbic acid has the strongest published evidence for skin penetration and clinical efficacy but is also the most irritating and least stable. Sodium ascorbyl phosphate is stable water-soluble derivative with growing clinical evidence for brightening and antibacterial effects. Ascorbyl tetraisopalmitate (THD ascorbate) is oil-soluble derivative with documented stability and gentle penetration. The combination provides multi-mechanism vitamin C delivery. Niacinamide at 2-5% has well-documented barrier and brightening effects. B-vitamins beyond niacinamide have limited published clinical evidence for topical efficacy. Glutathione has documented antioxidant effects but topical penetration is mechanistically challenging; liposomal delivery may improve effectiveness. The combined formulation represents a sophisticated multi-vitamin K-beauty prep pad design with stronger evidence for the vitamin C and niacinamide claims than for the B-vitamin or glutathione benefits.
K-beauty vitamin C prep pads are commonly recommended in dermatology for patients seeking convenient daily vitamin C application. The Dear Klairs formulation's multi-vitamin chemistry is consistent with mainstream clinical recommendations for general brightening and antioxidant support. For patients with significant pigmentation, dedicated higher-concentration vitamin C serums or prescription tranexamic acid typically deliver more measurable clinical effect.
After cleansing, tear off needed pad section using the 4-section tear-away design. Swipe across face with gentle mechanical action. Use AM and PM. Follow with serum and moisturizer. Always use SPF 30+ in AM — vitamin C provides synergistic photo-aging defense alongside SPF.
At $29.99 for 80 pads ($0.37 per pad), the value math is reasonable within K-beauty prep pad category. Comparable Anua, Numbuzin, and similar K-beauty pads sit in similar ranges. Recommended for users specifically wanting multi-vitamin chemistry in convenient pad format.
K-beauty enthusiasts wanting multi-vitamin chemistry in pad format. Klairs platform builders. Travel-frequent users appreciating pre-measured application. Users seeking convenient daily vitamin C application without dropper bottles.
Sensitive skin reactive to pure L-ascorbic acid. Environmentally-conscious users avoiding pad packaging waste. Cost-per-application optimizers preferring liquid serum alternatives. Users seeking high-concentration aggressive vitamin C treatment.
Ready to try Dear, Klairs Freshly Juiced Vitamin Skin Prep Pads?
Buy at Amazon ♥Saturated cotton pads with light essence
Fragrance-free with faint vitamin C scent
Round tub with 4-section tear-away pad stack
Tear off needed pad section, swipe across face. Refreshing brightening sensation from the vitamin C chemistry. Light essence saturation. The pad format adds mild mechanical exfoliation-friendly action alongside the chemistry.
Approximately 1-2 months at daily use (80 pads = 80 days)
All Year
Released in 2024 as Dear Klairs extended its vitamin C platform (anchored by the iconic Freshly Juiced Vitamin Drop serum) into a pad format. Reflects the K-beauty trend toward multi-active prep pads as toner alternatives.
Dear, Klairs is a Korean K-beauty brand founded in 2010, anchored by its iconic Supple Preparation Facial Toner and Freshly Juiced Vitamin Drop serum. The Freshly Juiced Vitamin Skin Prep Pads extend the brand's vitamin C platform into a pre-toner pad format with multi-vitamin chemistry.
All vitamin C in skincare provides the same benefit.
Vitamin C forms vary significantly in stability, penetration, and clinical efficacy. The Dear Klairs formulation uses three different forms — ascorbyl tetraisopalmitate (oil-soluble derivative), sodium ascorbyl phosphate (stable water-soluble derivative), and pure L-ascorbic acid — to leverage different penetration mechanisms simultaneously.
The Vitamin Drop is a leave-on serum format with focused 5% vitamin C derivative chemistry. The Skin Prep Pads are toner/prep format with multi-vitamin (vitamin C + B-vitamins + glutathione) chemistry. Different application formats and broader vitamin complexity.
Yes — no retinoids, salicylic acid, or other pregnancy-contraindicated actives. Vitamin C and B-vitamins are pregnancy-compatible.
Approximately 1-2 months at daily use (one pad per day = 80 days), longer with less frequent use. The 4-section tear-away design reduces waste.
Not in the same application — use prep pads AM and retinoid PM to space them out. Combining pure L-ascorbic acid with retinoid in same routine can increase irritation.
Yes — oil-free formulation uses ingredients generally considered fungal-acne safe.
Glutathione is the body's master antioxidant. Liposomal delivery encapsulates it in lipid spheres for improved skin penetration. Provides brightening and skin-clarity benefit in this formulation.
Recurring themes our editors read across retailer reviews of this product — summaries in our words, not quotations, and not a substitute for your own patch test.
Convenient pad format for travel and on-the-go use
Triple vitamin C plus B-vitamin complex is sophisticated
Glutathione liposomal addition is unusual
4-section tear-away design reduces waste
80 pads deplete faster than expected with daily use
Pure L-ascorbic acid may cause tingling for sensitive users
Pad format generates more packaging waste than liquid alternatives