How do I identify 100% human hair wigs versus blended fibers?

100% Human Hair Blended Synthetic wig

I spend a lot of time in factories, vendor showrooms, and QA labs across China, India, and Southeast Asia, and I know how costly a mislabelled blend can be for a wig brand. In my experience, catching synthetic contamination early—at sample stage or incoming QC—saves thousands in returns and protects your reputation with salon partners. […]