3-O-Ethylascorbic acid is a butenolide.
- Lines C
- Dark spots D
- Amount studies used
- 1–5%
- When
- morning
- Irritation
- low
Grades were set by reading this ingredient’s studies. They describe the ingredient, not every product that contains it.
How much products actually contain
67 products state the amountmedian 0.01%10% at or above the amount studies used (1–5%)
- under 0.01% 24
- 0.01–0.1% 17
- 0.1–1% 19
- 1% or more 7
Amounts are mostly stated by products named after the ingredient, so they may lean towards token amounts.
Of the products containing it, 134 list it before the 1% line and 211 after it (usually 1% or less).
Where no amount is stated, a product listing it early reaches the study amount about 29% of the time, one listing it late about 1%.
Clinical evidence grade by skin concern
- C
- uncontrolled or multi-ingredient studies
- D
- lab work or a record only
1 references
Products using this ingredient
12 of 345 confirmed · likeliest to carry enough first · See all 345
TorridenTorriden CELLMAZING Vitamin C Brightening Spot Cream 30ml7% stated · study amount
AROMATICAGlow Vita C Toning Serum Orange & Neroli2% stated · study amount
TorridenTorriden CELLMAZING Vitamin C Brightening Ampoule 30ml2% stated · study amount
MISSHAVita C Plus Spot-C Firming Ampoule 40ml1.5% stated · study amount
JOODOCHyaluide C Soothing Ampoule1% stated · study amount
JOODOCHyaluide C Soothing Ampoule1% stated · study amount
TorridenTorriden CELLMAZING Vitamin C Brightening Cream 50ml1% stated · study amount
GoodalGreen Tangerine Vita C E TXA Serum 30ml0.5% stated · below study amount
Beauty of JoseonBeauty of Joseon Light On Serum : Centella + Vita C29% chance of enough
Ole HenriksenOle Henriksen Banana Bright 15% Vitamin C Dark Spot Serum29% chance of enough
Ole HenriksenOle Henriksen Barrier Booster Orange Ferment Vitamin C Essence29% chance of enough
Summer FridaysSummer Fridays CC Me Serum with Vitamin C + Niacinamide29% chance of enough
Definition
3-O-Ethylascorbic acid is a butenolide.
Source: PubChem
US FDA substance register · UNII 6MW60CB71P · registered name 3-O-ETHYL ASCORBIC ACID · single chemical substance
3-O-Ethyl Ascorbic Acid is the organic compound.
Cosmetic roles
Safety & regulatory references
Taiwan
- Maximum concentration : 2%
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name ３－Ｏ－エチルアスコルビン酸: 本品は、次の化学式で表される有機化合物である。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 86404-04-8
- DTXSIDUS EPA chemical ID
- DTXSID8020595
- DTXCIDUS EPA compound ID
- DTXCID80595
- IUPAC
- (5R)-5-[(1S)-1,2-Dihydroxyethyl]-4-ethoxy-3-hydroxyfuran-2(5H)-one (non-preferred name)
- Molecular formula
- C8H12O6
- Molecular weight
- 204.178 g/mol
Measured properties
- Appearance
- solid
- Melting/freezing point
- 115 ℃
- Flash point
- 228.5 ℃
- Vapour pressure
- ≤ 0 ㎩ (20℃)
- Water solubility
- ≥ 1000 g/ℓ (20℃, pH: 2.1~2.2)
- Vapour density
- 1.47 g/㎤
- Relative density
- 1.46 (g/cm3)
- n-Octanol/water partition coefficient (Kow)
- -0.8 (log Pow, 20℃)
- Decomposition temperature
- &, gt, 250 ℃
- Molecular weight
- 204.18
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: KOSHA safety data sheets (Korea)
What products actually use it for
What the 1 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Softener and conditioner1
Source: US EPA CompTox dashboard
Related literature
- Proteomic Analysis of the Metabolic Response of UVA-Exposed Melanocytes Following Co-Treatment with Cannabigerol and 3-<i>O</i>-Ethylascorbic Acid. · 2026
- Effectiveness as tyrosinase inhibitor from active compounds of Centella asiatica (L.) Urb., ethyl ascorbic acid, and coenzyme Q10 as skin whitening by in silico evaluation · 2026
- Development of a microneedle patch for delivery of chitin-glucan as a bioactive macromolecule and 3-O-ethyl ascorbic acid for skin rejuvenation · 2026
- Skin Cells’ Protection Against UVA-Induced Changes in Co-Cultured Keratinocytes–Fibroblasts’ Proteome and Released Signaling Proteins by 3-O-Ethyl Ascorbic Acid · 2026
- Thermostable hyaluronic acid-based dissolving microneedles with high-loading capacity: design, optimization, and transdermal delivery of anti-aging ingredients. · 2026
Linked databases 21
- AICIS inventory notices (Australia)
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- China inventory of existing ingredients (IECIC)
- EU CosIng ingredient list 2
- Europe PMC 2 3
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary 2
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic ingredient register 2
- MFDS (Korea) cosmetic regulatory information 2 3 4
- PubChem
- Taiwan FDA cosmetic ingredients
- Taiwan FDA cosmetic regulations
- Tlooto literature search 2
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata