Step 2 of 4 is an amino-acid infused thermal therapy smoothing treatment designed to temporarily straighten and smooth frizzy, curly, multi-textured or transitioning hair for up to 12 weeks.
STS Express Smoothing and Strengthening System is an amino-acid infused smoothing and thermal therapy system that temporarily straightens and smooths frizzy, naturally curly, multi-textured, transitioning, and chemically treated hair—providing up to 12 weeks of intense smooth-ness, incredible shine, and maximum manageability.
Design Essentials PROSYSTEM STS EXPRESS Smoothing Mousse 8oz
Strengthens hair from root to tip and delivers anti-swelling/reversion properties
• Imparts long-lasting frizz-free smoothing with radiant shine
• Designed for clients seeking an alternative to chemical straighteners
• No formaldehyde or formaldehyde derivatives




























