Lab

Quality Control

Liang Guam Quality Control System

Safety and Quality Manufacturing are Critical to Our Success.

As a custom skin care cosmetic manufacturer, Liang Guam understands that most of our international customers cannot visit our company physically, so we have a clear and strict Quality Assurance/Control System for you to trust and count on. Our quality management follows Cosmetic GMP, ISO 9001, and ISO 22716 regulations, along with 100K clear room standing and following US Federal 209D specifications. In addition, as an experienced custom skin care manufacturer, we are confident about the products' quality because we have various quality tests for each type of product. Also, Liang Guam, the natural organic cosmetic and skincare manufacturer, and Ecocert-certified factories; cares about our quality and how our clients enjoy the final goods. 

Quality Management System

Skincare Quality Control System

Our QA/QC specialists have a specific test for each product individually.

Liang Guam always provides high-quality products to our clients. To achieve it, we have a proficient QA (Quality Assurance) /QC (Quality Control) team to investigate the quality from the raw material of the ingredient and packaging to semi-product to filling product and the final pre-delivery product. We also set a lot of quality control during the production plan to provide our customers with high-quality products. Plus, according to GMP standards, we will need to maintain enough finished products as reserve samples, but we don’t keep them until expiration. We will keep them for two years after the expiration date.

Skincare Manufacturer Research and Development Center

Quality Control in GMP skincare manufacturer

Tests that our Quality Management Team can do for you

Liang Guam will provide you with COA/MSDS for each batch of the final goods, and the difficulties listed below are all our In-House Testing Reports. We are also welcome our customers to send the formulation samples to a third party to have other tests, such as metal tests, transport tests, and many others.

  • UV Test
  • Viscosity
  • PH Value
  • Odor/Color
  • Aerobic Plate Count Test
  • Thermal Cycling Test
  • Thermal Stability Test

Machines that we use in the Lab

Liang Guam regularly operates on-site inspections during skin care production to assure zero-error production. The following equipment is used: homogenizer, temperature humidity chamber, microorganism lab test, centrifuge machine, mixer, scale, autoclave homogenizer, temperature humidity chamber, microorganism lab test, and centrifuge machine mixer, scale, and autoclave.

Skincare Manufacturer Research and Development Center
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