What is 3-O-Ethyl Ascorbic Acid?
Role not confirmed
We haven't written up what this ingredient does yet. The products below feature it as a key ingredient.
Which products feature it?
43 of the 2320 products we've checked feature this as a key ingredient. Products that disclose a concentration or list it near the top of the ingredient list come first.
Showing 1 to 12.
Arencia
Vitamin C Booster Shot
It's registered in Korea as a functional cosmetic for brightening and wrinkle improvement.
Key 3-O-Ethyl Ascorbic Acid (#4 on the ingredient list), Ascorbic Acid, Glutathione
22 claims, summarized
- You can expect:
- less visible dark spots · softer-looking fine lines
- Only partly backed:
- a brighter skin tone · clearer-looking skin
See each claim
Claims, checked
Dual-functional cosmetic for whitening and wrinkle improvement
backed by evidenceHigh-concentration spot care for the entire face!
plausible, not testedFrom spot intensive care to full-face brightening at once
plausible, not testedA “dual brightening solution” that cares for pigment traces and skin tone simultaneously
plausible, not testedWater-based permeating gel serum formulation that absorbs cleanly without oiliness
plausible, not testedFormulated to minimize the sticky feel characteristic of vitamin C products, it absorbs lightly and refreshingly.
plausible, not testedArencia Vitamin C Booster Shot is a high-function brightening care product currently sold in pharmacies.
partly backedPure vitamin C improves melasma visible on the surface
partly backedVitamin C complex improves uneven skin tone
partly backedBy minimizing oil content, it reduces the greasy feel characteristic of vitamin C and is a gel serum type that absorbs refreshingly.
partly backedHigh-potency X low-irritation formula comfortable for daily (morning, evening) use
partly backed0.00 low-irritation human application test completed
partly backedAn optimal blend of pure vitamin C and vitamin C derivatives that maximizes efficacy and minimizes irritation.
partly backedDesigned so even sensitive skin can use it with confidence, and for extremely sensitive skin, it is recommended to use it with an adaptation period.
partly backedTransparent flawless skin completed by condensing fresh vitamin C complex 50,000ppm as is
overstatedApply over areas with heavy pigmentation such as the eye area and cheekbones to quickly eliminate melasma and dark spots.
overstatedIt cares for surface melasma and uneven skin tone at once and suppresses free radicals to make skin clear and healthy from within.
overstatedPigmentation toning care that clears as it stings
no supporting source foundThe high-potency vitamin C serum that pharmacists chose first
no supporting source foundA one-shot booster that erases the yesterday left on skin with noticeable melasma and blemishes
no supporting source foundGlutathione forms a powerful antioxidant network
no supporting source foundArencia's unrivaled formulation that switches on a fluorescent light for skin that has lost its radiance
no supporting source found
Cell Fusion C
Toning C Dark Spot Serum
It's registered in Korea as a functional cosmetic for brightening and wrinkle improvement.
Key 3-O-Ethyl Ascorbic Acid (#5 on the ingredient list), Niacinamide, Ferulic Acid
7 claims, summarized
- You can expect:
- less visible dark spots · softer-looking fine lines
See each claim
Claims, checked
Whitening wrinkle functional cosmetic / Completed functional cosmetic review (or report) under the Cosmetics Act
backed by evidenceIntensive improvement of dark spots/blemishes
plausible, not tested✔️ Moisture-filled
plausible, not tested✔️ Even sensitive skin feels at ease
partly backed✔️ Intensive improvement of dark spots/blemishes in 3 days✔️ Low-irritation serum that even sensitive skin can trust✔️ Moisture-filled, non-sticky finish
overstatedCell Fusion C | Toning C Spot Serum. It is a highly concentrated serum that intensively improves dark spots and blemishes in 3 days. With a low-irritation formula that even sensitive skin can use with confidence, it finishes with a moisture-filled, non-sticky feel. With its large capacity, cultivate clear and transparent skin every day.
overstatedNon-sticky finish
nothing specific to check
Key 3-O-Ethyl Ascorbic Acid (#6 on the ingredient list), Ascorbic Acid 23%, Niacinamide
1 claim checked
Claims, checked
Low-irritation skincare for sensitive skin, 56 global beauty award wins
nothing specific to check
Key 3-O-Ethyl Ascorbic Acid (#8 on the ingredient list), Niacinamide, Adenosine
Key 3-O-Ethyl Ascorbic Acid (#8 on the ingredient list), Ferulic Acid, Tocopherol
4 claims checked
Claims, checked
Glow
plausible, not testedVitamin products may undergo discoloration due to oxidation, so use within 3 months after opening is recommended.
partly backedDue to the characteristics of vitamin products, skin sensitivity may increase, so it is recommended to use other products together in the steps before and after using the product.
partly backedHigh-concentration vitamin C is sealed, so powder may fly out upon opening.
no supporting source found
MEDICUBE
Deep Vita C Pad
It's made for a brighter skin tone and better hydration.
Key 3-O-Ethyl Ascorbic Acid (#11 on the ingredient list), Hippophae Rhamnoides Water, Niacinamide 2%
38 claims, summarized
- Only partly backed:
- a brighter skin tone · better hydration (amount unknown) · less visible dark spots · softer-looking fine lines
- Don't count on:
- calmer skin · firmer skin · a smoother skin texture
See each claim
Claims, checked
500,000ppm vitamin tree water 1,000ppm vitamin C derivative
backed by evidenceA formulation with a nourishing and moisturizing finish
plausible, not testedHigh-concentration Vitamin C brightening pad that becomes clearer the more you wipe
partly backedCare for blemishes·dark spots·dullness to complete a transparent skin tone
partly backedDaily whitening care that can tone up at the same time as exfoliation care
partly backedVitamin C, Niacinamide, Panthenol
partly backed100% vegan-certified vegan product
partly backedBlemish dark spot area 5.6% after 4 weeks of use, blemishes, dark spots before they rise 4.3% after 4 weeks of use, melanin pigment amount 3.5% after 4 weeks of use
partly backedFantastic partners, blemish care made even stronger by adding 3 kinds of vitamins
partly backedLow-irritation human application test completed
partly backedHuman application test results judged as non(no)-irritating
partly backedWeakly acidic pH 4.5
partly backedMoisture-locking ingredient Panthenol, blocks the moisture inside the skin from evaporating and helps improve skin radiance
partly backedYellow hue efficacy extracted from plants, not artificial colorants
partly backedUse of FSC-certified eco-friendly paper & soy ink for sustainable beauty and forest protection
partly backedExcellent-grade recyclable packaging material
partly backedVitamin Water 500,000PPM rich in high-concentration vitamins
partly backedThe closer to the front of the full ingredient list, the higher the content of that ingredient.
partly backedIt means a wrinkle improvement, whitening functional cosmetic containing the specific efficacy ingredients and amounts notified by the Ministry of Food and Drug Safety.
partly backedVitamin blemish pad that is erased the more you wipe
overstatedWith one pad, manage everything from surface blemishes to inner blemishes at once, real effects proven by human application tests
overstatedVitamin blemish pad proven by 13 human application tests
overstatedDefinite skin improvement effect boasting 100% satisfaction from actual 4-week use
overstatedWeakly acidic exfoliation care with no burden on the skin, MediCube Vitamin Blemish Pad is a weakly acidic pad that can be used daily because it does not irritate the skin.
overstatedPerfect sealing, convenient opening, to deliver the pad's hygiene and efficacy just as they are
overstatedPharmacy-supplied blemish cosmetic
no supporting source foundCumulative sales 2eokman sheets
no supporting source foundCumulative sales 2eokman sheets, No.1 in repurchase rate
no supporting source foundBeautypin Pick of the Month, No.1 blemish pad
no supporting source foundBlemishes,dark spots 5.6% blemishes,dark spots before they rise 4.3% melanin pigment amount 3.5% skin brightness 1.0% triple tone 1.1% skin redness 2.9% skin yellowness 2.4% skin keratin amount 43.5% skin texture 7.9% skin surface moisture 13.7% skin inner moisture 3.1% skin elasticity 2.5% wrinkle improvement 4.9% facial lifting 5.5% skin glow improvement 8.8%
no supporting source foundBlemish·dark spot improvement satisfaction 100%
no supporting source foundIt contains 2,000 times the vitamin C of grapes and 1,000 times that of apples, and
no supporting source foundVitamin tree 1500mg hardy kiwi 400mg hawthorn 39mg mandarin 34mg pineapple 24mg
no supporting source foundElasticity ingredient Volume Pep, an ingredient that boosts elasticity in the skin and helps improve facial lifting
no supporting source foundGlow ingredient Crystal Pep, completes clear and transparent crystal skin and gives moisture to the skin
no supporting source foundApplied technology in which key ingredients reach deep into the skin through the moisture channels inside the skin
no supporting source foundDue to the glow-boosting ingredient, bubbles may be felt when using the product. This is a function that raises the skin's refractive index along with skin texture care effects to give a more transparent skin feel, so you can use it with confidence.
no supporting source foundMediCube's first functional pad, be sure to check the functional report
no supporting source found
Key 3-O-Ethyl Ascorbic Acid (#12 on the ingredient list), Tranexamic Acid, Niacinamide
3 claims checked
Claims, checked
Vita C E
backed by evidenceTXA
backed by evidenceGreen Citrus
partly backed
Key 3-O-Ethyl Ascorbic Acid (#13 on the ingredient list), Niacinamide, Adenosine
1 claim checked
Claims, checked
After cleansing, wet a cotton pad with an appropriate amount and wipe from the inside to the outside along the skin texture of the face, or dispense into hands and allow it to absorb into the skin.
nothing specific to check
It's made for better hydration and calmer skin.
Key 3-O-Ethyl Ascorbic Acid (#14 on the ingredient list), Niacinamide, Asiaticoside
15 claims, summarized
- Only partly backed:
- better hydration (amount unknown) · less visible pores · calmer skin (amount unknown) · better barrier support (amount unknown)
- Don't count on:
- less shine
- Tests passed:
- non-comedogenic
See each claim
Claims, checked
DERMATOLOGIST TESTED A patch test was performed for 48 hours to confirm skin irritation at the dermatology department of a university hospital.
plausible, not testedALLERGY TESTED To evaluate the skin irritation and sensitization potential, repeated cutaneous patch applications were conducted.
plausible, not testedFor the first step of sensitive skin that has become sensitive after cleansing, cares for soothing redness and even inner moisture through improving the slightly acidic pH environment
plausible, not testedReplenishing Skin Moisture, pH4.5CICA™, Mild Acidic, Derma Deep Hyaluronic Acid
partly backedTemporary improvement in pore indicators immediately after use: pore depth -3.8%, density -7.2%, area -12.4%, volume -14.28%, count -7.29% (temporary effect)
partly backedZinc soothes sensitive skin, 4 types of CICA repairs damaged barriers, PHA improves skin environment to mild-acidic pH.
partly backedSENSITIVE SKIN PANEL TESTED A 4-week usability evaluation was conducted on 30 subjects with red skin tone, sensitive skin.
partly backedNON-COMEDOGENIC TESTED Confirmed as non-comedogenic and suitable for acne-prone skin after 4 weeks of use.
partly backedEstra Aisika 365 Moisture Toner pH4.5 200ml lightly absorbs into sensitive skin right after cleansing, fills it with moisture deep inside, and stably sets the skin pH balance to lead it to a comfortable state. Containing pH4.5 CICA and hyaluronic acid, it reduces redness concerns and helps smooth skin texture, completing mildly acidic hydrating soothing care.
partly backedWith this toner, you can soothe your skin with pH4.5CICA™ and hydrate deeply with Derma Deep Hyaluronic Acid. Experience 6x more intense hydration in comparision to before use, for sensitive skin after cleansing.
overstatedImproves hydration by 626%* immediately after use
overstatedReduces visible redness by 87%* immediately after use
overstatedHelps reduce sebum through oil-moisture balancing: 57% reduction in sebum after 2 weeks of use (graph-based)
no supporting source foundMaintains a weak acidic skin environment for 12 hours
no supporting source foundReduces skin temperature by 6.8°C* immediately after use
contradicted by sources
Key 3-O-Ethyl Ascorbic Acid (#14 on the ingredient list), Glutathione, Bakuchiol
easydew
Dark Spot Ampoule
Key 3-O-Ethyl Ascorbic Acid (#16 on the ingredient list), Niacinamide 5%, Sh-Oligopeptide-1
3 claims checked
Claims, checked
Niacinamide (5%)
backed by evidenceDark Spot and Blemish Ampoule
partly backedEGF
overstated
Chaewun
Vitamin Pudding Mist Ampoule
It's made for better hydration and a brighter skin tone.
Key 3-O-Ethyl Ascorbic Acid (#16 on the ingredient list), Niacinamide, Hippophae Rhamnoides Water
1 claim, summarized
- Only partly backed:
- better hydration (amount unknown) · a brighter skin tone (amount unknown) · less visible dark spots (amount unknown)
See each claim
Claims, checked
| Whitening functional cosmetic | Niacinamide and lemon extract ingredients brighten skin tone, and the deep hydration of multi-hyaluronic acid delivers a lively radiance.
partly backed
Often featured alongside it
Are the claims about it backed up?
We checked each claim that features this ingredient. Open the list below to see the result for each one.
See the results by claim
| Result | Claims |
|---|---|
| backed by evidence | 2 of 9 |
| partly backed | 5 of 9 |
| overstated | 1 of 9 |
| no supporting source found | 1 of 9 |
These are counts of claims, not products. One product can name the same ingredient in several claims, and we checked each one on its own.