Are there usage precautions?

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All ingredients

Ingredient Dictionary

GLUTAMINE

L-glutamine is an optically active form of glutamine having L-configuration.

How much products actually contain

2 products state the amountmedian 0.16%

under 0.01% 1
0.01–0.1% 0
0.1–1% 1
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, 22 list it before the 1% line and 83 after it (usually 1% or less).

Products using this ingredient

12 of 104 confirmed · likeliest to carry enough first · See all 104

Definition

L-glutamine is an optically active form of glutamine having L-configuration. It has a role as a micronutrient, a nutraceutical, an EC 1.14.13.39 (nitric oxide synthase) inhibitor, a mouse metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite and a human metabolite. It is a L-alpha-amino acid, a glutamine family amino acid, a glutamine and a proteinogenic amino acid. It is a conjugate base of a L-glutaminium. It is a conjugate acid of a L-glutaminate. It is an enantiomer of a D-glutamine. It is a tautomer of a L-glutamine zwitterion.

Source: PubChem

US FDA substance register · UNII 0RH81L854J · registered name Glutamine · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Reduces staticANTISTATICKeeps skin in good condition (CosIng catch-all)SKIN CONDITIONINGSoftens hairHAIR CONDITIONING

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 alpha-Amino Acids as Used in Cosmetics

Source: US Cosmetic Ingredient Review (CIR)

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

Official labels & definitions

JCIA labelling name グルタミン: 本品は、次の化学式で表されるアミノ酸である。

Source: JCIA labelling names (Japan)

Names & identifiers

GLUTAMINEINCI글루타민Korean label name (MFDS standard)L-GlutamineSynonymグルタミンJapanese labelling name

CAS No.chemical registry number: 56-85-9
EC No.EU chemical inventory number: 200-292-1
DTXSIDUS EPA chemical ID: DTXSID1023100
DTXCIDUS EPA compound ID: DTXCID503100

IUPAC: L-Glutamine
Molecular formula: C5H10N2O3
Molecular weight: 146.146 g/mol

Measured properties

Appearance: Opaque solid, [Merck Index] White powder, [Sigma-Aldrich MSDS] · Solid
Melting point: 185.5 dec °C · 184-185 °C (decomposes)
Solubility: 41300 mg/L (at 25 °C) · In water, 41,300 mg/L at 25 °C
Density: 1.364 g/cu cm
Stability: Stable under recommended storage conditions.
pH: pH = 5-6 at 14.6 g/L at 25 °C
Dissociation constant: 2.17 · pK1 = 2.17, pK2 = 9.13
Colour: white
Odour: odourless
Melting/freezing point: 185 ℃
Initial boiling point and range: 355 ℃
Vapour pressure: 0.000000019 ㎜Hg
Water solubility: 50000 ppm (at 30℃)
Relative density: 1.364
n-Octanol/water partition coefficient (Kow): -3.64
Decomposition temperature: 185-186 ℃
Molecular weight: 146.17

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 7 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.

Flavouring and nutrient4
Softener and conditioner2
Anti-static agent1

Source: US EPA CompTox dashboard