Director Hair Straightener: Designed exclusively for professional use only, our Thio-based straightener is a safe and effective way to eliminate wave in hair for up to 90 days. This two-part application takes only 20 minutes and is a great add-on service to boost your bottom line.

Box Includes:
Part A: Hair Straightener Tube
Part B: Hair Straightener Neutralizer Bottle

Features:
• Thio-Based Formula
• 20 Minute Application
• Straight Hair for 60-90 Days