Are there usage precautions?

보습제 역할을 하여 피부의 수분을 유지하고 건조를 예방합니다. 피부에 부드러움을 제공하며, 민감성 피부에도 적합합니다. Draws water into the stratum corneum from deeper layers and the environment, improving hydration, preventing dryness, and repairing barrier function.

All ingredients

Ingredient Dictionary

GLYCERIN

Glycerol is a triol with a structure of propane substituted at positions 1, 2 and 3 by hydroxy groups.

Clinical evidence

Dryness B+
Skin barrier B

Amount studies used: 3–10%
When: morning and evening
Irritation: low

Grades were set by reading this ingredient’s studies. They describe the ingredient, not every product that contains it.

GLYCERIN Molecular structure — Molecular structure

How much products actually contain

3 products state the amountmedian 6%100% at or above the amount studies used (3–10%)

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

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

Of the products containing it, 10,803 list it before the 1% line and 1,717 after it (usually 1% or less).

Where no amount is stated, a product listing it early reaches the study amount about 68% of the time, one listing it late about 5%.

Clinical evidence grade by skin concern

B: one or two randomised trials

1 references

van Zuuren 2017, Cochrane review of emollients and moisturisers, 77 RCTs / 6,603 people (eczema; no moisturiser shown better than another)

Products using this ingredient

12 of 12,290 confirmed · likeliest to carry enough first · See all 12,290

Definition

Glycerin is the polyhydric alcohol that conforms generally to the formula

Glycerol is a triol with a structure of propane substituted at positions 1, 2 and 3 by hydroxy groups. It has a role as a geroprotector, an osmolyte, a detergent, a solvent, a mouse metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite, a human metabolite and an algal metabolite. It is an alditol and a triol.

Source: PubChem

US FDA substance register · UNII PDC6A3C0OX · registered name Glycerin · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Listed as a fragrance-composition material (not a claim that it adds scent)FRAGRANCEBase that dissolves other ingredientsSOLVENTGives the product a scentPERFUMINGCares for the mouthORAL CAREAdjusts thicknessVISCOSITY CONTROLLINGProtects skin from outside irritantsSKIN PROTECTINGSoftens hairHAIR CONDITIONINGDraws moisture into the skinSKIN CONDITIONING - HUMECTANTDraws in and holds moistureHUMECTANTMakes alcohol undrinkableDENATURANT

Safety & regulatory references

Canada

Conditions of Use by product type : Manufacturers of oral and leave-on products containing glycerin must ensure the raw material used is within the specifications of an accepted pharmacopoeia with respect to diethylene glycol (DEG) impurities (e.g. Glycerin Official Monograph in the most current edition of the USP).

Source: MFDS (Korea) cosmetic regulatory information

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 Glycerin as Used in Cosmetics

Source: US Cosmetic Ingredient Review (CIR)

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

Official labels & definitions

JCIA labelling name グリセリン: 本品は、次の化学式で表される三価アルコールである。

Source: JCIA labelling names (Japan)

Names & identifiers

GLYCERININCI글리세린Korean label name (MFDS standard)1,2,3-PropanetriolSynonymグリセリンJapanese labelling name

CAS No.chemical registry number: 56-81-5
EC No.EU chemical inventory number: 200-289-5
DTXSIDUS EPA chemical ID: DTXSID9020663
DTXCIDUS EPA compound ID: DTXCID40662

IUPAC: Propane-1,2,3-triol
Molecular formula: C3H8O3
Molecular weight: 92.094 g/mol

Measured properties

Appearance: Glycerine appears as a colorless to brown colored liquid. Combustible but may require some effort to ignite. · Dry Powder, Large Crystals, Gas Vapor, Liquid, Wet Solid, Other Solid, CBI
Odour: MILD ODOR · Odorless
Boiling point: 554 °F at 760 mmHg (decomposes) (NTP, 1992) · 290 °C (decomposes)
Melting point: 64 °F (NTP, 1992) · 18.1 °C
Solubility: greater than or equal to 100 mg/mL at 64 °F (NTP, 1992) · Miscible with ethanol, slightly soluble in ethyl ether, insoluble in benzene, carbon tetrachloride, chloroform, carbon disulfide, petroleum ether
Density: 1.261 at 68 °F (USCG, 1999) - Denser than water, will sink · 1.2613 g/cu cm at 20 °C
Melting/freezing point: 18.17 ℃
Initial boiling point and range: 290 ℃(760 ㎜Hg)
Flash point: 199 ℃
Flammability (solid, gas): not flammable
Vapour pressure: 0.003 ㎜Hg (50℃)
Water solubility: 1000000 ㎎/ℓ (25℃)
Vapour density: 1.261 g/㎖
Relative density: 3.17
n-Octanol/water partition coefficient (Kow): -1.75 (log Pow, 25℃)
Auto-ignition temperature: 370 ℃
Decomposition temperature: 290 ℃
Viscosity: 1412 mPa S
Molecular weight: 92.09

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 1,181 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.

Humectant588
Solvent164
Softener and conditioner87
Stabilizing agent47
Binder40
Processing aids not otherwise specified33
Viscosity modifier31
Emulsifier29

32 other uses

Lubricating agent21
Chemical reaction regulator16
Solubility enhancer16
Flavouring and nutrient14
Surfactant (surface active agent)12
No specific technical function10
Thickening agent8
Foamant6
Fragrance5
Surface modifier5
Filler5
Monomers4
Plasticizer4
Preservative4
Sealant (barrier)3
Dye3
Cleaning agent2
Anti-caking agent2
Anti-adhesive/cohesive2
Soil amendments2
Catalyst2
Drier2
Intermediate2
Fuel2
Biocide2
Pharmaceutical (EPA)2
Other1
Adhesion/cohesion promoter1
Abrasive1
Defoamer1
Pigment1
Degradant/impurity (EPA)1

Source: US EPA CompTox dashboard