Sleek Hair Routine That Lasts

May 21, 2026

A sleek, straight style that lasts all day requires the right products in the right order — not just a flat iron. Here's the complete sleek hair routine from wash to finish that keeps hair straight from morning to night.

The Sleek Hair Routine

Step 1: Smoothing Shampoo & Conditioner

Start with a smoothing or anti-frizz shampoo and conditioner. These formulas coat the hair shaft with smoothing agents that make blow drying and flat ironing easier and the result last longer. Rinse with cool water to seal the cuticle before styling.

Step 2: Apply Smoothing Blowout Product to Damp Hair

The IGK GOOD BEHAVIOR Spirulina Protein Smoothing Spray + Anti-Frizz Blowout Balm is a keratin-like treatment and frizz control in one — apply to damp hair before blow drying for a smooth, frizz-free blowout that lasts. Vegan and cruelty-free.

For a cream-based option, the OUAI Anti-Frizz Cream (6 oz) with jackfruit and beetroot extract provides lasting hydration and frizz control with heat protection — paraben, phthalate, and sulfate free. Apply a small amount to damp hair before blow drying.

Step 3: Blow Dry with a Concentrator Nozzle

Attach the concentrator nozzle to your blow dryer and direct airflow downward along the hair shaft — this smooths the cuticle as it dries instead of roughing it up. Work in sections from nape to crown. Finish each section with cool air to set the smooth.

Step 4: Flat Iron in Slow, Single Passes

Use the CHI G2 Flat Iron (1.25", ceramic, 40-second heat up) in slow, single passes — one slow pass is more effective than multiple fast passes. Work in 1-inch sections from nape to crown.

Step 5: Lock with Anti-Humidity Spray

Immediately after flat ironing, apply the TRESemmé Extra Hold Anti-Humidity Hairspray (2-pack, 14.6 oz) — this is the step that makes the style last. The anti-humidity formula creates a barrier that prevents moisture from reverting the straight style.

Step 6: Tame Flyaways

For any remaining flyaways, the Behavior Frizz & Flyaway Taming Wand (0.24 oz) is a lightweight gel control stick that smooths surface frizz and flyaways without disturbing the style — swipe over flyaways for an instant sleek finish.