What is this ingredient?

미국 FDA 물질 등록 · UNII 5WX2EGD0DK · 등록명 STEARYL STEARATE · 단일 화학물질

All ingredients

Ingredient Dictionary

STEARYL STEARATE

How much products actually contain

No product states its amount yet.

Of the products containing it, 19 list it before the 1% line and 9 after it (usually 1% or less).

Products using this ingredient

12 of 28 confirmed · likeliest to carry enough first · See all 28

Definition

US FDA substance register · UNII 5WX2EGD0DK · registered name STEARYL STEARATE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Keeps skin in good condition (CosIng catch-all)SKIN CONDITIONINGAdjusts thicknessVISCOSITY CONTROLLINGMakes skin soft and smoothSKIN CONDITIONING - EMOLLIENT

Safety & regulatory references

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

Source: Korea toxic substances GHS register (NIER)

Reviewed by CIR: Safety Assessment of Stearyl Heptanoate and Related Stearyl Alkanoates as used in Cosmetics

Source: US Cosmetic Ingredient Review (CIR)

Reviewed by CIR: Safety Assessment of Alkyl Esters as Used in Cosmetics

Source: US Cosmetic Ingredient Review (CIR)

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

Official labels & definitions

JCIA labelling name ステアリン酸ステアリル: 本品は、ステアリン酸（＊）とステアリルアルコール（＊）のエステルであり、次の化学式で表される。

Source: JCIA labelling names (Japan)

Names & identifiers

STEARYL STEARATEINCI스테아릴스테아레이트Korean label name (MFDS standard)Octadecanoic acid, octadecyl esterSynonymステアリン酸ステアリルJapanese labelling name

CAS No.chemical registry number: 2778-96-3
EC No.EU chemical inventory number: 220-476-5
DTXSIDUS EPA chemical ID: DTXSID5062639
DTXCIDUS EPA compound ID: DTXCID5037733

IUPAC: Octadecyl octadecanoate
Molecular formula: C36H72O2
Molecular weight: 536.97 g/mol

Measured properties

Appearance: solid · Large Crystals, Other Solid, Dry Powder
Melting/freezing point: 60 ℃
Initial boiling point and range: 546.25 ℃
Flash point: 332.46 ℃
Flammability (solid, gas): not flammable
Vapour pressure: 0 ㎩ (25℃)
Water solubility: 0 ㎎/ℓ (25℃)
Vapour density: 0.857 g/㎤
n-Octanol/water partition coefficient (Kow): 17.09 (log Pow)

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) · PubChem

What products actually use it for

What the 17 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 conditioner7
Lubricating agent2
Viscosity modifier2
Humectant1
Emulsifier1
Soil amendments1
Processing aids not otherwise specified1
Density modifier1

1 other uses

Thickening agent1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

2 skin studies and 2 eye studies are on record.

Classed as low4

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 4 studies

Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: as mentioned below according to
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to other guideline: As mentioned below
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: as mentioned below according to
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: Modified Draize test according to