How to Make Lipsticks by Using a KOS High Shear Homogenizer


Lipsticks consist of a pigment dispersed into a mixture of oils and waxes. Typical ratio of oil: wax: pigment would be as follows. Oil is 50%-70%, wax is 20%-30%, and pigment is 5%-15%. Regulatory authorities such as EU and FDA have introduced strict relevant policy for permission to use the range of pigment and other raw material. General speaking, oil used include castor oil, mineral oil or petrolatum while waxes including beeswax, carnauba, candelilla, and ozokerite (ceresin). Silicone compounds are also sometimes used in the base formula. Other ingredients such as emollients, pigment dispersants, preservatives, and fragrances can be also used.

Some problems may occur during the process of making lipsticks. Firstly, it takes a long time to melt the waxes and solid pieces of raw materials may require breaking up before they can be can be added. Secondly, it is difficult to disperse pigment grinds and pre-dispersion to dissolve into the oil/wax medium because of the widely differing viscosity. Thirdly, a mill will be needed to pass the end product to obtain a stable consistency and homogeneity. To better understand the problems, we may clarify the detailed process of how to manufacture lipsticks by using a conventional way. First of all, the oil is heated in the container to 80-80℃ while melting wax separately. Add part of the oil to the wax and mixed with a stirrer. And then add some pigment grind to oil/wax phrase and mixed until a homogeneous product has been achieved, which is a long process time. And then add fragrances, preservatives and other ingredients. Finally, when the finished products is held at a lower temperature under the room temperature, pour it into molds and cooled to solidify. As you can comprehend from the process, it really takes a long process time to make it. Moreover, solid material should be dispersed before it can be added to other phrase.

make lipsticks



If you use a Kos high shear mixer, it will be every easy to solve these problems. Only three steps can manufacture lipsticks.

Step1: weigh the oils and waxes and heat it. Mixture starts. The high speed rotation of the rotor of high shear homogenizer creates a powerful suction, drawing the wax particles and other ingredients into the work head.

Step 2: centrifugal force drives the liquid and solid ingredients to work head where material will be sheared highly in the narrow gap between the stator and rotor.

Step3: material will be continued circulations of dispersing and shearing around the work head until homogeneous products has been achieved.

Using a Kos high shear mixer can rapidly reduce process time, and improved consistency and product texture. What’s more, no necessary to use a stir to mix materials and material particles can be homogenized to a stable size. Thus, if you are interested in homogenizing lipsticks, please visit our website for more emulsifying machines:

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