
The Ingredient Library · Ingredient
Pentylene Glycol
A quiet multitasker that helps skin hold water and formulas feel elegant.
| INCI name | Pentylene Glycol |
|---|---|
| Type | Humectant — hydrating & texture-enhancing |
| Key benefit | A fresher, more hydrated skin feel |
| Suits | All skin types, including sensitive skin |

What is this
Pentylene Glycol
Pentylene glycol is a clear, water-loving liquid used in modern skincare as a humectant and texture enhancer. The Nine Aurora uses a bio-based grade produced through catalytic conversion of biomass-derived feedstock. It helps draw moisture into the skin's surface, supports the freshness of a formula and gives creams and serums a light, elegant feel.
In which products
Formulas with pentylene glycol
Every ingredient in our library serves one measure of success — skin longevity — the years skin keeps its strength, moisture and evenness.
Questions about pentylene glycol
What is pentylene glycol?
Pentylene glycol is a clear, water-loving liquid used widely in modern skincare. It belongs to the glycol family of humectants. The Nine Aurora uses a bio-based grade, produced through catalytic conversion of biomass-derived feedstock; in formulas it hydrates, improves texture and helps keep the product itself fresh.
What does pentylene glycol do in skincare?
Three quiet jobs at once: as a humectant it draws water into the skin's surface layers; as a solvent it helps other ingredients dissolve and disperse evenly; and it supports a formula's freshness, reducing the need for additional preservatives.
Is pentylene glycol safe for skin?
Yes — it has been reviewed by the Cosmetic Ingredient Review panel and is considered safe at the low concentrations used in skincare. It has low irritation potential, and most people, including those with sensitive skin, tolerate it well.
Is our pentylene glycol made by fermenting corn sugar?
No. Ours is a bio-based grade produced through catalytic conversion of biomass-derived feedstock — a different route from fermentation of corn sugar, though both start from renewable plant material.
Is pentylene glycol the same as propylene glycol?
No — they are different molecules with different properties. Pentylene glycol is a five-carbon glycol, appreciated for its skin-friendly humectancy and its support of preservation; formulators frequently choose it for modern, minimalist preservative systems.
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