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BUTYLENE GLYCOL

Last update on Feb 5, 2026

Butylene glycol is one of the most popular ingredients used in cosmetic and skin care products. It is colorless and viscous with the chemical formula C4H10O2. It comes in a liquid form and acts as a humectant, emollient, and solvent in formulations. Butylene glycol is the perfect ingredient for moisturizing, protecting, and conditioning the skin and hair. It also acts as a solvent and keeps the products from clamping up.

CAS Number: 107-88-0, 6290-03-5Chem/IUPAC Name: Butane-1,3-diolEINECS/ELINCS No: 203-529-7COSING REF No: 74756

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What is BUTYLENE GLYCOL used for?

Butylene glycol hydrates, conditions, and acts as a barrier to protect the skin and hair. This magical ingredient has a lot of benefits, making it quite popular in the cosmetic industry.

  • Skin care: It acts as a humectant which means that it attracts water to the upper layers of the skin and binds it there to keep the skin hydrated. It also creates a barrier on the skin to protect it from harmful surroundings
  • Hair care: It acts as a great conditioner for the hair, making it soft and flowy. This ingredient prevents water loss from the hair, thus keeping them from drying out. Further, it is also a viscosity-decreasing agent, which means that it prevents the products from sticking together and clamming up

Origin

Butylene glycol is derived from petroleum, sugarcane, or distilled corn. It is made by the catalytic hydrogenation of acetaldehyde. For use in cosmetic and skin care products, it generally comes in liquid form and works well with almost all the ingredients.

What does BUTYLENE GLYCOL do in a formulation?

EMOLLIENT|
HUMECTANT|
SKIN CONDITIONING|
SOLVENT|
MOISTURISING

Safety Profile

Butylene glycol is considered safe for use in cosmetic and skin care products. Even if it is alcohol, it does not dry out or irritate the skin and hair. It has a low hazard rating from EWG (typically 1) with minimal concerns for irritation or sensitization at typical concentrations (1-20 %). However, a patch test is recommended prior to usage. Apart from this, Butylene glycol is also halal.

BUTYLENE GLYCOL alternatives

BUTYLENE GLYCOL technical profile

PropertyValues
Boiling Point207°C
Melting Point-77°C
SolubilitySoluble in water