Certifications & Quality Standards
An ISO-certified system behind every LyDia brush — documentation available on request.
ISO 9001:2015
Our factory operates under an ISO 9001:2015 certified quality management system — covering incoming material inspection, process control, final inspection and continuous improvement.
Certificate copies and scope documents are available on request for your vendor onboarding files.
Request Certificate Copy
Quality You Can Audit
In-House QC Lab
Shedding, ferrule pull and handle tests run on every batch — plus 100% piece-by-piece visual inspection.
Factory Audits Welcome
Visit our Qingxian workshop in person, or book a live video audit — we will walk every process with you.
Traceable Materials
Hair, ferrules and handles come from audited suppliers, with cruelty-free vegan options as standard.
Ready to Build Your Own Brush Line?
Send us your idea, reference or drawing — our team replies with a quote within 24 hours. Free samples available.