Test result
Formaldehyde: Not detected(<20mg/kg),pass;
PH Value: 8.1,pass;Content of human hair:≥98%,pass;
Sensory: The color of monochrome hair should be consistent.The same product should feel consistent,no hair loss.The curvature should be natural,fulffy,flexible.Clean and no foreign matter.In accordance with the requirement,pass.
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