Cooling Agents WS-3

WS-3

Cooling agent WS-3 (as known as Koolada 3, N-Ethyl-p-menthane-3-carboxamide) is a synthetic compound used to provide a cooling sensation in various consumer products. It offers a cooling effect of 1.5 and lasts up to 6 minutes.

It is valued for its mild, pleasant, and long-lasting cooling properties, making it a versatile ingredient in many consumer products.

WS-3 has KOSHER ,HALAL,REACH ready.

Substance Identification

Synonyms N-Ethyl-p-menthane-3-carboxamide
CAS 39711-79-0
EINECS 254-599-0
FEMA 3455
HS.CODE 292429
Molecular Formula C13H25NO
Moleclar Weight 211.34

Application & Uses

  • WS-3 is widely used across a variety of products, including oral care formulations (such as toothpaste and mouthwash), cosmetics (creams and lotions), food and beverages, pharmaceuticals, and personal care products (including shampoos and conditioners).
  • For use in beverages and mouthwash, WS-3 should first be dissolved in propylene glycol, after which solubilisers such as Tween or Span should be added to ensure proper dispersion. In e-liquid formulations, WS-3 is often blended with WS-23 to deliver a balanced and long-lasting cooling sensation.
  • At higher concentrations, a small amount of sweetener may be added to offset bitterness. When used together with peppermint oil, WS-3 produces a more pronounced, refreshing, and enduring cooling aroma.

Features & Benefits

  • WS-3 offers a subtle menthol flavour, with a strong and enduring cooling sensation characterised by a slow, steady release of icy coolness and gentle notes of camphor and mint. Its cooling intensity is 1.5 times greater than that of menthol, and its effect lasts for 20 to 30 minutes. Like menthol, it presents a slight bitterness.
  • The cooling effect is primarily experienced in the throat, on the roof of the mouth, towards the back of the oral cavity, and at the rear of the tongue.
  • WS-3 is generally recognised as safe (GRAS) for use in foods, cosmetics, and personal care products when applied within recommended concentrations. At 10–100 mg/kg, it activates the trigeminal nerve, providing a robust and long-lasting cooling sensation. The initial effect is mild but gradually develops into a stable, persistent coolness with subtle camphor and menthol undertones. It produces an immediate, clean cooling effect, and at an aroma concentration of 10%, it is almost odourless, showing only a faint alcoholic and cooling note. Its taste threshold is 200 ppb, as determined by resin-impregnated paper strips placed in the mouth.
 
Recommended usage level WS-3
min max
Fog-fluid 2250 ppm 22500 ppm
Beverage 10 ppm 100 ppm
Toothpaste 1000 ppm 10000 ppm
Mouthwash 50 ppm 2000 ppm
Hard candy 150 ppm 1500 ppm
Chewing gum 5000 ppm 20000 ppm
Creams & Lotions 5000 ppm 50000 ppm

Sales Specification

ITEM VALUE TEST METHOD & UNIT
Cooling Strength 1.5 @Menthol was set as 1 as a reference
Cooling Longevity 6 minutes
ITEM VALUE TEST METHOD & UNIT
Cooling Strength 4 @Menthol was set as 1 as a reference
Cooling Longevity 10 minutes
ITEM VALUE TEST METHOD & UNIT
Cooling Strength 4.5 @Menthol was set as 1 as a reference
Cooling Longevity 12 minutes
ITEM VALUE TEST METHOD & UNIT
Cooling Strength 3.5 @Menthol was set as 1 as a reference
Cooling Longevity 36 minutes
ITEM VALUE TEST METHOD & UNIT
Cooling Strength 0.75 @Menthol was set as 1 as a reference
Cooling Longevity 8 minutes

Package

  • Customizable packaging details.

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GHS Hazard Statements

Storage

  • Flammable materials should be stored in a separate safety storage cabinet or room
  • Ground all equipment containing material
  • Keep away from heat
  • Keep away from sources of ignition
  • Keep container tightly closed
  • Keep in a cool, well-ventilated place

Relation Articles

Remark

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