Are there usage precautions?

비타민 C의 안정된 형태로, 주로 항산화제로 사용되며 피부 톤 개선과 콜라겐 합성 촉진에 도움을 줍니다. 피부를 밝게 하고 주름을 줄이는 데 효과적입니다.

Ingredient Dictionary

SODIUM ASCORBATE

Sodium ascorbate is an organic sodium salt resulting from the replacement of the proton from the 3-hydroxy group of ascorbic acid by a sodium ion.

How much products actually contain

3 products state the amountmedian 0.00001%

under 0.01% 3
0.01–0.1% 0
0.1–1% 0
1% or more 0

Amounts are mostly stated by products named after the ingredient, so they may lean towards token amounts.

Of the products containing it, 2 list it before the 1% line and 14 after it (usually 1% or less).

Products using this ingredient

12 of 16 confirmed · likeliest to carry enough first · See all 16

Definition

Sodium ascorbate is an organic sodium salt resulting from the replacement of the proton from the 3-hydroxy group of ascorbic acid by a sodium ion. It has a role as a coenzyme, a reducing agent, a flour treatment agent, a plant metabolite, a human metabolite, a food antioxidant and a Daphnia magna metabolite. It is a vitamin C and an organic sodium salt. It contains a L-ascorbate.

Source: PubChem

US FDA substance register · UNII S033EH8359 · registered name Sodium Ascorbate · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Slows spoilage by oxygenANTIOXIDANT

Safety & regulatory references

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

Other restriction: ban substances that deplete the ozone layer

Source: EU CosIng ingredient list

Reviewed by CIR: Extended Re-review Summary: Safety Assessment of Ascorbic Acid and Ascorbates as Used in Cosmetics

Source: US Cosmetic Ingredient Review (CIR)

Reviewed by CIR: Final Report on the Safety Assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and Sodium Ascorbyl Phosphate as Used in Cosmetics

Source: US Cosmetic Ingredient Review (CIR)

More data — names, identifiers, properties, test records, literature

Official labels & definitions

JCIA labelling name アスコルビン酸Ｎａ: 本品は、アスコルビン酸（＊）のナトリウム塩であり、次の化学式で表される。

Source: JCIA labelling names (Japan)

Names & identifiers

SODIUM ASCORBATEINCI소듐아스코베이트Korean label name (MFDS standard)L-Ascorbic acid, monosodium saltSynonymアスコルビン酸ＮａJapanese labelling name

CAS No.chemical registry number: 134-03-2
EC No.EU chemical inventory number: 205-126-1
DTXSIDUS EPA chemical ID: DTXSID0020105
DTXCIDUS EPA compound ID: DTXCID60105

IUPAC: Sodium (2R)-2-[(1S)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2,5-dihydrofuran-3-olate (non-preferred name)
Molecular formula: C6H7NaO6
Molecular weight: 198.106 g/mol

Measured properties

Appearance: Minute crystals or white powder. pH of aqueous solutions 5.6 to 7.0 or even higher (a 10% solution, made from a commercial grade, may have a pH of 7.4 to 7.7). (NTP, 1992) · Dry Powder
Odour: Odorless
Melting point: 424 °F (decomposes) (NTP, 1992) · 218 °C decomposes
Solubility: greater than or equal to 100 mg/mL at 63 °F (NTP, 1992) · Solubility in water: 62 g/100 mL at 25 °C, 78 g/100 mL at 75 °C
Stability: Aqueous solutions are unstable and subject to quick oxidation by air at pH > 6.0 · Solutions of ascorbic acid are rapidly oxidized in air and in alkaline media, the drug should be protected from air and light. /Ascorbic acid/
pH: Between 6,5 and 8,0 (10 % aqueous solution) · pH of aqueous solution 5.6-7.0 or even higher, 10% solution, made from commercial grade, may have pH of 7.4-7.7
Melting/freezing point: 219 ℃
Flash point: 149 ℃
Upper/lower flammability or explosive limits: - / - % (&amp, gt, = 0.35 g/L, 1.4g/L)
Water solubility: (62% at 25 C)
Auto-ignition temperature: 1060 ℃
Decomposition temperature: 218 ℃
Molecular weight: 198.12

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: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 46 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.

Processing aids not otherwise specified27
Antioxidant4
Pharmaceutical (EPA)3
Fragrance2
Flavouring and nutrient2
Oxidizing agent1
Food preservative (EPA)1
Filler1

5 other uses

Leavening agent (EPA)1
Dye1
Surface modifier1
pH regulating agent1
Chemical reaction regulator1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

2 skin studies and 1 eye studies are on record.

Classed as low3

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 3 studies

Not likely to be sensitizing
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay) according to EU Method B.42 (Skin Sensitisation: Local Lymph Node Assay)
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to