When selecting raw materials, it is essential to confirm their physical and chemical properties are compatible with the target formula. For example, for hyaluronic acid-based essences, attention should be given to the molecular weight range and viscosity performance to avoid difficulties in emulsification or excessive film formation due to high molecular weight; while for surfactants used in shampoos, they need to match the target system's pH stability range (usually 5.0-7.5) to prevent stratification or increased irritation.
Prioritize suppliers that provide complete technical information (MSDS, COA, pH range, viscosity values)
Confirm whether the extraction part and solvent type (such as ethanol/water extraction) are indicated for products containing natural extracts.
Pay attention to the stability of special ingredients like ginger extract and avocado oil under high temperatures or long-term storage.
Bulk purchases should be based on actual production capacity and turnover cycle to avoid waste or stockouts due to mismatched specifications. Among the existing products on the platform, single-package masks, small bottle essences, and large drum body milks all support customized packaging. It is recommended to reasonably plan the minimum order quantity (MOQ) based on the production capacity of the OEM factory.
Sheet Mask is recommended to be packed in individual packaging for easy separation and brand independent identification.
It is recommended to choose stackable plastic jars or aluminum tubes for Body Lotion & Cream products to enhance transportation efficiency.
Liquid raw materials (such as Toner, Essence) should prioritize sealed PET/glass bottles to reduce oxidation risk.
Private label OEM is not as simple as labeling, the following elements need to be clarified in advance:
Color Matching Standard: Do you accept the tolerance range for color difference (e.g., ΔE ≤3)?
Perfume registration requirements: Is it necessary to provide IFRA compliance proof or a list of prohibited substances?
Label printing content specifications: including ingredient list format, usage instructions language, barcode position
All changes should be confirmed at the sampling stage to avoid rework after product delivery.
Low-cost raw materials may hide high impurity content or batch fluctuations, affecting the stability of the final product. For example, some inexpensive moisturizing emulsion bases may have a low unit price, but due to an excessive proportion of glycerin, they are prone to absorb moisture and clump, increasing the difficulty of warehousing management.
Different categories have varying sensitivity to temperature and humidity. For example, body wash containing plant extracts needs to be stored in a cool, dark place, while waterless face cream can be kept at room temperature. Failure to store as required may lead to spoilage, even if the product is originally factory-certified.
Certain high-activity ingredients (such as vitamin C derivatives) degrade rapidly when exposed to metal ions, so it is necessary to evaluate whether an inner lining is required if the container contains iron parts. In addition, some transparent bottles may trigger photo-oxidation reactions under ultraviolet radiation, and light-blocking materials should be chosen.
Even with complete documents from suppliers, physical sample testing is still required. It is recommended to follow the following process for each new raw material: • Perform a small-scale trial mixture simulating the actual production process • Measure the initial and physical properties after 4 weeks of storage (such as pH, viscosity, appearance) • Verify if the sensory experience meets expectations (such as skin feel, extensibility, odor)
Establish a standardized selection process to ensure efficient and controllable cross-border raw material procurement.
Establish a "Raw Material Access List" covering mandatory inspection items and elimination criteria
Establish supplier grading archives, recording delivery time, quality fluctuations, and service response speed
Regularly review the practical feedback of purchased categories to optimize the selection strategy for future purchases.