
IPMP | o-Cymen-5-ol
High-Performance Antimicrobial Solution for Modern Personal Care

Why Formulators Choose Pentylene Glycol
Product Technical Parameters
Parameter | Specification |
|---|---|
INCI Name | O-Cymen-5-OL |
CAS No. | 3228-02-2 |
Appearance | White crystalline powder |
Purity | 99% |
Function | Antimicrobial / Anti-dandruff / Deodorizing |
Recommended Dosage | 0.05% – 0.5% |
Solubility | Soluble in alcohol and glycols |
pH Stability | 4.0 – 9.0 |
Application | Shampoos, scalp tonics, cleansers, deodorants |
Shelf Life | 24 Months |
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Frequently Asked Questions
- How does Pentylene Glycol boost preservative efficacy?
Pentylene Glycol works by disturbing the cell membranes of microorganisms, increasing their permeability. This allows smaller amounts of co-preservatives (such as Phenoxyethanol or Organic Acids) to penetrate and inhibit microbes more effectively, thereby reducing the total required dosage of traditional preservatives.
- Is Pentylene Glycol safe for sensitive skin?
Yes, high-purity Pentylene Glycol is well-tolerated, non-irritating, and widely used in hypoallergenic and sensitive skin formulations. It helps replace more irritating traditional preservatives.
- Can this ingredient be used in natural/organic formulations?
Yes. We offer both standard synthetic Pentylene Glycol and 100% bio-based (derived from renewable plant sources like corn cobs or sugarcane) Pentylene Glycol that compliant with COSMOS/Ecocert standards. Please specify your preference when requesting a quote.
- What is the primary difference between Pentylene Glycol and Propylene Glycol?
While both are diols, Pentylene Glycol offers significant technical and marketing advantages over Propylene Glycol due to its longer molecular structure:
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Preservative-Boosting Efficacy: Pentylene Glycol contains a Carbon-5 chain, giving it superior amphiphilic properties to efficiently disrupt microbial cell membranes. This makes it an excellent preservative booster that enables “Preservative-Free” or “Mild Preservation” claims. In contrast, the shorter Carbon-3 chain of Propylene Glycol offers negligible antimicrobial activity at standard dosages.
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Skin Tolerance and Safety: Propylene Glycol is widely known as a potential skin irritant and sensitizer when used in higher concentrations. Pentylene Glycol is exceptionally mild, making it the preferred choice for hypoallergenic and sensitive skin formulations.
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Sensory Profile: Propylene Glycol often leaves a tacky, heavy, or sticky residue on the skin. Pentylene Glycol provides a luxurious, feather-light, and silky skin feel, drastically improving the aesthetics of high-end skincare products.
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Green Marketing and Clean Beauty: Our Pentylene Glycol is available as a 100 percent bio-based, COSMOS-approved ingredient sourced from renewable plant biomass. Propylene Glycol is traditionally petroleum-derived, which limits its appeal to modern, natural-focused brands.
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