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Humectant

Pentylene Glycol

Modern multifunctional diol — pentylene glycol simultaneously moisturizes the skin, acts as a mild preservative, and improves the product's feel. Especially popular in Korean and clean beauty cosmetics as a safe alternative to traditional preservatives.

moisturizerpreservativeclean beautypenetrator
✓ Safe
Comedogenic Rating
0/5
Irritation Potential
0/5

What is it?

Pentylene glycol (1,2-pentanediol) — synthetic or derived from plant sources five-carbon diol. In INCI: Pentylene Glycol. Structurally similar to butylene glycol, but with a longer carbon chain — hence better antimicrobial activity. Combines the functions of humectant, solvent, and preservative booster in one molecule.

Multifunctional component in toners, essences, serums, and creams. Acts as a moisturizer, enhances the penetration of actives, and protects the formula from microorganisms — especially effective against fungi and yeasts. A standard in K-beauty and European clean beauty formulas.

Key Benefits

✦
Moisturization and light texture
Attracts and retains water in the stratum corneum — a mild humectant effect, comparable to butylene glycol. Provides formulas with lightness and quick absorption without a film or stickiness.
◈
Antimicrobial protection of the formula
1,2-pentanediol effectively suppresses the growth of fungi, yeasts, and a range of bacteria. As a preservative booster, it allows for a reduction in the concentration of primary preservatives or replaces more controversial systems (parabens, phenoxyethanol).
✧
Improvement of active penetration
Pentylene glycol enhances the perceptual barrier for active molecules — increases the bioavailability of hyaluronic acid, niacinamide, and peptides in water-based formulas.

Suitable for

for all skin typesfor sensitive skinfor oily skin

Main Actions

✓ moisturization✓ antimicrobial protection✓ penetration enhancement✓ formula stabilization
Rare reactions on sensitive skin

Pentylene glycol is well tolerated, but in some people with very reactive skin, it may cause slight tingling at concentrations >5%. If the skin reacts to glycols in general — check patch test before first use.

CategoryHumectants

Frequently Asked Questions

What does Pentylene Glycol do for skin?
Multifunctional component in toners, essences, serums, and creams. Acts as a moisturizer, enhances the penetration of actives, and protects the formula from microorganisms — especially effective against fungi and yeasts. A standard in K-beauty and European clean beauty formulas.
Who should use Pentylene Glycol?
Pentylene Glycol is suitable for: for all skin types, for sensitive skin, for oily skin.
Are there any warnings about Pentylene Glycol?
Pentylene glycol is well tolerated, but in some people with very reactive skin, it may cause slight tingling at concentrations >5%. If the skin reacts to glycols in general — check patch test before first use.

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