Testing Agency: Guangzhou Product Quality Supervision Institute
Test Standard: GB/T23170-2008
- Formaldehyde: < 20mg/kg (Undetectable)
- pH Value: 7.8
- Human Hair Content: 100%
human hair wigs manufacturer, OEM hair extensions supplier, Brazilian virgin hair bundles bulk, cheap HD lace front wigs, SGS certified hair products, private label hair vendors