Pentylene glycol ECO

Pentylene glycol ECO is a multifunctional glycol of natural origin that works on two fronts at once in a formulation. As a humectant , it binds water in the skin while simultaneously inhibiting microbial growth . This allows the dose of a conventional preservative to be reduced, or at higher concentrations the product can be protected without one. For manufacturers who want a short ingredient list without traditional preservatives, it is one of the common approaches. Chemically it belongs to the 1,2-alkanediols , like Caprylyl Glycol. Of this group it has the shortest chain, which is why it hydrates most effectively and dissolves best in water. Its antimicrobial activity is, however, milder than that of longer diols, which needs to be taken into account when designing a preservation system. What it does in a formulation Humectant – binds water and retains it in the surface layers of the skin. The manufacturer lists it as the most strongly hydrating diol in its glycol range. Antimicrobial ingredient – active against bacteria, yeasts and moulds. A longer molecular chain would mean a stronger effect, a shorter one better solubility. Pentylene glycol is a compromise tilted towards hydration. Preservation booster – reduces the amount of conventional preservative needed to pass a challenge test, which is especially valuable in sensitive formulations. Active ingredient penetration enhancer – the amphiphilic structure (hydrophilic and lipophilic parts in one molecule) facilitates transport of active ingredients into deeper skin layers. Solubiliser and emulsion stabiliser – in O/W e