Uncover the birth of moisturizing essence: analysis of core processing technology

1、 Pre dispersion and dissolution process: laying a uniform and stable foundation

The formula of essence usually contains water-soluble ingredients (such as sodium hyaluronate and nicotinamide) and oil soluble ingredients (such as phytosterol and ceramide). The first step in processing is to ensure that these components are fully and uniformly dissolved.

Water phase preparation: Heat deionized water to a specific temperature (usually 70-80 ℃), and under constant stirring, add water-soluble moisturizing agents, thickeners, and other raw materials in sequence to completely dissolve and form a homogeneous water phase system.

Oil phase preparation: In another container, heat and melt the oil soluble components, emulsifiers, etc. to form a transparent oil phase.

The precise temperature control and stirring speed in this stage are crucial to avoid clumping and ensure smooth subsequent processes.

2、 Emulsification process: the key to achieving perfect integration of water and oil

For lotion like or slightly thick essence, emulsification process is the core link. The purpose is to uniformly disperse the originally insoluble water phase and oil phase under the action of emulsifier through high shear force to form a stable lotion.

Homogenization emulsification: In modern production, homogenization emulsifiers are commonly used. Under the strong shear force generated by the high-speed rotating rotor, one phase is torn into tiny droplets, evenly dispersed in another phase, forming a stable system with extremely small particle size and concentrated distribution. This process can significantly improve the fineness and stability of essence liquid, making it feel better and easier to absorb.

Vacuum emulsification: Some production processes with higher quality requirements will use vacuum emulsification technology. Stirring and homogenization in a vacuum environment can effectively prevent the mixing of bubbles and the oxidation of raw materials at high temperatures, thereby better maintaining the effectiveness of active ingredients and extending the shelf life of products.

3、 Cooling and Active Ingredient Addition Process: Protecting the Freshness of Ingredients

Many core moisturizing ingredients and functional active ingredients (such as vitamin B5, centella asiatica extract, peptides, etc.) are sensitive to high temperatures. Therefore, they cannot be added during the high-temperature emulsification stage.

Precise temperature control: After emulsification is completed, the system will initiate a cooling program to lower the temperature of the material liquid to the preset safe temperature (usually below 40 ℃) through jacket cooling water.

Post addition process: Add the precious active ingredients, essence, preservatives, etc. into the system at a suitable temperature, and mix them gently to make them evenly distributed. This step is the key to ensure the efficacy of essence liquid.

4、 Filtration and filling process: ensuring purity and safety

Before filling, the liquid needs to undergo precise filtration to remove any small impurities that may be introduced during the production process, ensuring the purity of the finished product.

Filling is carried out in a clean workshop (usually a dust-free environment with a standard of 100000 or higher). The fully automatic filling line precisely controls the filling volume of each bottle and immediately seals it, minimizing the contact between the product and air and preventing secondary pollution.

5、 Quality inspection and packaging: the final check

After filling, the product needs to undergo a series of strict quality inspections, including but not limited to:

Physical and chemical index testing: such as pH value, viscosity, heat and cold resistance tests, etc.

Microbial testing: Ensure that the product meets the national hygiene standards.

Stability testing: Long term observation of product state changes under different conditions to evaluate its shelf life.

Only products that pass all inspections can undergo final packaging and be released for sale.