Introduction to customized processing flow of essence lotion

Today, the homogenization of the skin care market is increasingly prominent. As the core category of consumers' daily skin care, essence lotion's differentiated innovation has become the key to brand breakthrough. Choosing professional and reliable customized processing services is a necessary path for brands to transform their unique formula concepts into quality products. Analyze the key links of customized processing of essence lotion:

1、 Deep demand docking and formula co creation

Precise demand targeting: The brand and factory technical team engage in multiple rounds of in-depth communication to clarify product positioning (such as anti-aging, whitening and brightening, and soothing and repairing), target skin type, core efficacy requirements, texture preferences (clear and moisturizing/nourishing), budget range, and market differentiation highlights.

Formula development/optimization: The factory R&D team provides three paths based on requirements:

Matching mature formula library: Quickly select the most suitable basis from market validated mature formulas.

Targeted optimization and adjustment: Based on the existing mature formula, adjust the concentration of active ingredients, oil system, skin sensation regulator, etc., to achieve precise customization.

New targeted development: engineers conduct original formula design and stability testing for unique concepts or ingredients.

Raw material selection and confirmation: jointly confirm the core functional ingredients (such as hyaluronic acid from specific sources, patented peptides, plant extracts, etc.), base oils, emulsifiers, anti-corrosion systems, etc., to ensure the quality, compliance, and cost control of raw materials.

2、 Rigorous sample making and testing verification

Laboratory sample production: Based on the confirmed formula, the R&D laboratory accurately weighs the raw materials and conducts small-scale trial production (usually several hundred grams).

Multi dimensional sample evaluation:

Sensory evaluation: The brand evaluates the subjective experience of the sample, including real-time skin feel, extensibility, absorption, aroma, etc.

Basic physical and chemical testing: Factory laboratory tests sample pH value, viscosity, heat and cold resistance stability, centrifugal stability, etc.

Formula adjustment and confirmation: Based on evaluation feedback, the R&D team fine tunes and optimizes the formula until it fully meets brand requirements, and ultimately locks in the formula.

3、 Pilot scale up and comprehensive stability assessment

Pilot production: Conduct large-scale trial production on a small-scale production line (such as tens of kilograms), simulate large-scale production process parameters (temperature, stirring speed, time, etc.), and verify the producibility and process stability of the formula.

Accelerated stability testing: Place the intermediate sample under accelerated conditions such as high temperature (e.g. 45 ° C), high humidity, and strong light, and regularly observe and detect changes in its appearance, odor, pH value, viscosity, active substance content, microorganisms, etc. (e.g. 1, 2, 3 months) to predict the performance of the product during its shelf life.

Long term stability tracking at room temperature (optional/parallel): Simultaneously conduct long-term tracking tests that are closer to actual storage conditions, providing more realistic data support.

4、 Packaging material adaptation testing and confirmation

Packaging material selection and compatibility test: fill the lotion with locked formula into the selected packaging material (bottle, pump head, liner bag, etc.), and conduct long-term (usually more than 3 months) compatibility test to ensure that the material body does not react with the packaging material (such as discoloration, precipitation, odor), the pump head sprays smoothly, and the sealing is good.

Packaging safety confirmation: Ensure that all packaging materials comply with relevant regulatory requirements (such as heavy metal migration testing).

5、 Large scale production and strict quality control

Raw material storage quality inspection: Conduct strict identity verification (COA/MSDS) and sampling inspection (appearance, key indicators) on each batch of raw materials.

Standardized production process:

Accurate weighing and pretreatment: Water phase and oil phase raw materials are accurately weighed and pretreated (dissolved, heated) separately.

Vacuum emulsification homogenization: the core process! In the vacuum emulsification pot, the water phase and oil phase are mixed at a specific temperature to form a stable and delicate lotion system through homogeneous shear force to avoid bubbles.

Add active substance/essence at low temperature: when the material body is cooled to a safe temperature (usually below 40-45 ° C), add heat sensitive active ingredients, essence, preservatives, etc.

Cooling and maturation: Continue stirring and cooling to room temperature. Some formulas need to be left to mature for optimal texture.

Full process online monitoring: Real time monitoring and recording of key process parameters (temperature, time, stirring speed, vacuum degree).

Filling and packaging: Using automated filling equipment for precise filling, sealing, labeling, and boxing/boxing in a clean environment.

Full factory inspection of finished products: Each batch of finished products undergoes a comprehensive inspection of appearance, odor, pH value, viscosity, net content, microbial limits, and other aspects. Only after passing the inspection can they be released.

6、 Filing support and delivery

Compliance document provision: The factory provides key documents required for filing, such as the full ingredient list (INCI) of the product, a brief description of the production process, product technical requirements, and self inspection reports.

Logistics delivery: Deliver products to designated locations safely and on time according to order requirements and agreements.

Conclusion: Customized processing is the crystallization of science and collaboration

The customized processing of essence lotion is far from simple "OEM", but a systematic project integrating brand insight, scientific research strength, precision manufacturing and rigorous quality control. From the initial collision of inspiration, to the birth of the formula in the laboratory, to the pilot scale verification, packaging material adaptation test, and ultimately to achieving stable output on a large scale in the standardized workshop, every step is crucial.