Humectants
Propanediol
It can help dissolve selected materials and reduce the heavy or tacky feel of a water-binding system while contributing to preservation design.
- INCI
- PROPANEDIOL
- CAS
- 504-63-2
- Also known as
- 1,3-propanediol · trimethylene glycol
- Function
- Humectants
Ingredient answer
What is Propanediol?
Propanediol is a water-miscible diol used as a humectant, solvent, sensory modifier, and support ingredient in many cosmetic formats.
Formulation behavior
How it works inside a formula
Verify grade origin and purity, and test solvent performance, viscosity, preservation, sting potential, and dry-down in the finished product.
Where it appears
Common product contexts
- hydrating serums
- lotions and creams
- hair conditioners
Practical caution
What to keep in view
Balance the level with climate, sensory goals, and the rest of the water-binding system.
Take the ingredient into a working formula.
Keep supplier details, percentages, compliance checks, and batch records inside your private Formuley workspace.