PEG-8

Functions
Thickener
Solvent
Lubricator
Humectant
CAS Number(s)
25322-68-2
EINECS number(s)
225-856-4
FDA UNII
B697894SGQ

PEG-8 is a polyethylene glycol with polymerization level 8 which means that it contains 8 -CH2CH2O- groups. It has relatively a low molecular weight and is readily soluble in water, alcohols, esters, glycol ethers, ketones, and aromatic solvents, similar to its closest relatives from PEG-6 to PEG-10. It is a clear and colorless liquid at room temperature.

The solubility of the polyethylene glycols decreases as their molecular weight or polymerization level increases. They are virtually insoluble in aliphatic hydrocarbons, ethers, natural and mineral oils.

PEG-8 can be used to modify the viscosity of liquids, and as an intermediate in organic syntheses. It is a stable ingredient, resistant to moderately strong acids, alkalis, and salt solutions. Generally speaking, PEG-8 is fairly inert, with a boiling point over 300°C, and is therefore considered non-volatile.

Synonyms
Polyethylene glycol 400
Polyethylene Glycol 400
3,6,9,12,15,18,21-Heptaoxatricosane-1,23-Diol

Related ingredients

1,2-Hexanediol
1,2-Hexanediol
1,2-Hexanediol is glycol alcohol (with two hydroxy groups on 1 and 2 positions and six carbon atoms), a multifunctional ingredient used as a solvent, emollient, moisturizing agent, and preservative in skin and hair care applications.
Acacia Senegal Gum
Acacia Senegal Gum
Topically, it has been used in lotions as a soothing agent, oil-in-water emulsifier, and as astringent. Acacia Senegal gum is used externally to cover inflamed surfaces like bums or nodular leprosy.
Acetyl octapeptide-3
Acetyl octapeptide-3
Acetyl Octapeptide-3 is a brilliant, new, deep penetrating, powerful amino-peptide with a fantastic ‘BOTOX® like’ effect.
Acetyl Tetrapeptide-5
Acetyl Tetrapeptide-5
Acetyl Tetrapeptide-5 is a fantastic, super effective, naturally derived tetrapeptide that helps reduce the look of puffy eye bags and dark circles under the eyes and helps prevent them from reappearing.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a universal, exceptionally easy-to-disperse polymer that offers the formulation flexibility of a multi-use rheological additive and a wide range of performance properties.
Algae Extract
Algae Extract
Contains micro-nutrients such as iron, manganese, zinc, magnesium, copper.
Ammonium Lactate
Ammonium Lactate
This food-grade ingredient is valued for its humectant and skin conditioning effects and is used as an anionic surfactant.
Ammonium Acryloyldimethyltaurate/VP Copolymer
Ammonium Acryloyldimethyltaurate/VP Copolymer
Aristoflex AVC is a synthetic polymer, a member of a polyester family, based on amidosulphuric acid. It is the secret behind the new lightness of creams in tubes and jars. In addition, the polymer gives consistency to care products, or, as experts term it is a rheology modifier.
Beeswax
Beeswax
The honeybee produces an organic skincare ingredient, beeswax, which contains a mixture of fatty acids and esters. It is used in a range of organic skincare products as a thickener and emulsifier.
Behenyl alcohol
Behenyl alcohol
Behenyl alcohol is a long chain linear fatty alcohol (with 22 carn atoms) derived from natural raw materials such as rapeseed or coconut oils. It is a waxy solid at room temperature used in skin and hair care formulations as a thickener, emulsifier, binding agent, solubilizer, and gallant.
Bentonite
Bentonite
Bentonite is one of the smectite clays with multiple beneficial properties and effects on the skin.
Betaine (Betaina)
Betaine (Betaina)
A amino acid derived from beets that increases hydration and offers skin protection. Improves mitochondrial activity and balances moisture, reduces skin irritation.