Disliked

Pentylene Glycol

Explained

Pentylene Glycol (1,2-pentanediol) is a multitasking little diol with three main roles in a formula:

  1. It's a humectant that helps pull water into the skin and hold it there.
  2. It's a solvent that helps dissolve and evenly disperse other ingredients throughout a formula (this also improves texture and stability).
  3. It's a preservative booster.

Research on alkanediols (the family pentylene glycol belongs to) show they work by disrupting microbial cell membranes. This disruption helps the primary preservative system in a product work more effectively at lower doses.

On the safety side, the Cosmetic Ingredient Review Expert Panel has concluded this ingredient to be safe as used in current cosmetic practices + concentrations.

Typical use levels in a formula run about 1-5%.

See all 17,748 products with Pentylene Glycol

Users who like it
36%
Users who avoid it
64%

What it does

Skin Conditioning To hydrate and soften skin
Solvent Capable of dissolving another substance.

Prevalence

Somewhat common Percentage of products that contain it
13.5%
Top categories
Treatments
Moisturizers
Cleansers
Position Predominant list placement
Top 25%
Concentration Concentrations we've seen
0% to 1%

References

CosIng Data

CosIng ID 58983
INCI Name PENTYLENE GLYCOL
EC #  226-285-3
All Functions Skin Conditioning, Solvent