Ingredient
Butylene Glycol
A light humectant and solvent that helps other ingredients dissolve and gives a less sticky finish than glycerin alone.
- CAS 107-88-0
What it is there to do
Humectant
Draws water into the upper layers of the skin or hair.
Solvent
Dissolves and carries the other ingredients.
What we don't know
- Where it comes from — plant, mineral, synthetic — isn't recorded.
- No published rule in our reference names it. That is about the rules, not safety.
- How much of it is used in any particular product. We hold no concentrations at all.
This is information about an ingredient, not medical advice, and not a judgement about any product that contains it. Back to the reference.