Cooling Agent WS-27: Front-of-Mouth Cool with a Clean Finish

Cooling Agent WS-27: Front-of-Mouth Cool with a Clean Finish

WS-27 enters the WS series as the newest flavor coolant, and its edge is sensory rather than merely chemical. Because WS-27 concentrates cooling on the front of the mouth and the tongue, it reads as a bright, immediate burst. Consequently, it delivers that burst without the bitter tail older cooling agents leave behind. This post explains why WS-27 focuses the cool up front, where the clean finish matters most, and how to dissolve and dose it for a spotless result.

Why WS-27 concentrates the cool up front

WS-27 (CAS 51115-70-9) is a refined, new-generation burst coolant built as an upgrade to WS-23. First, its crystals are finer and dissolve faster, so the cool develops evenly and quickly in liquid systems. Next, it packs a high burst and high intensity while keeping the sensation on the tongue and front of the mouth. In addition, with purity at ≥99% (HPLC) and a slight water solubility on top of PG/VG solubility, it fits both aqueous and oil-based bases. Most importantly, our proprietary process removes the bitter aftertaste of earlier generations, so the finish stays clean.

Where the clean finish matters most

The front-of-mouth focus and bitter-free finish pay off wherever aftertaste ruins the experience. For example, toothpaste and oral care gain a crisp cool that does not turn sharp or medicinal. Meanwhile, confectionery and gummies keep their intended sweetness from first bite to aftertaste. Furthermore, beverages and next-generation e-liquids get an up-front lift without a lingering bitter edge. Beyond these, cosmetics, tobacco products, and pharmaceutical physiological coolants benefit when a pure, front-loaded cool is the goal. In every case, WS-27 supports the product with a clean signature.

How to dissolve and dose WS-27

Start by pre-dissolving WS-27 in ethanol or propylene glycol, or dissolve it directly into the flavor system before dosing. Because the crystals are finer and faster-dissolving, this step needs less shear and time than coarser grades. Next, pair WS-27 with WS-3 or WS-23 when you want to extend the cooling tail beyond the initial burst. As a result, you tune both the impact and the duration of the sensation. Therefore, request a sample and COA to set the dose for your base, and review our applications guide for starting points by category.