Cooling Agents in Cough Syrup and Pharmaceutical Formulations

Why pharma formulators choose WS-10 and WS-3 for syrups, throat sprays and lozenges: tasteless cooling, TRPM8 activity and batch COA.
Cooling in pharmaceutical products does two jobs at once: it delivers a genuine sensory benefit the patient feels immediately, and it masks the bitterness of active ingredients without adding sugar or strong flavor.
In cough syrups and liquid medicines, WS-10 (menthoxypropanediol) is the workhorse – fully soluble, essentially tasteless, and stable in aqueous systems. In throat sprays and lozenges, WS-3 provides a clean cooling that soothes on contact, with TRPM8-mediated activity and no numbing.
Every batch ships with a COA suitable for pharma vendor qualification, and our team provides solubility and stability guidance for your specific vehicle. Cooling that comforts – and documentation your QA department will accept.
Need a cooling recommendation for your product? Send us your formulation target - we reply within one business day.
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