Finding a trustworthy cosmetics manufacturer isn't easy, but it's not impossible. First, you can ask friends, industry peers, or social media for recommendations. They may have experience working with a particular cosmetics manufacturer and can provide valuable advice. Second, you can visit the manufacturer to get a feel for its production environment and equipment. This allows you to intuitively assess its scale and level of craftsmanship, and get a sense of its commitment to quality management. Furthermore, you can consult industry reviews or rankings to determine which cosmetics manufacturers have a good reputation and are trustworthy.

Finally, you can further confirm the manufacturer's reliability by communicating with it. Collaboration with a manufacturer requires mutual trust and transparency. Through communication with the manufacturer, you can better understand its technical capabilities, communication skills, and service attitude, and thus determine its trustworthiness. In short, finding a trustworthy cosmetics manufacturer requires time and effort, but by following these steps, you can find the right partner to ensure product quality and customer satisfaction.