Dennis Bernard

Dennis Bernard Straightlines One Step Permanent Straightening

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STRAIGHTLINES One Step Permanent Straightening formulate for both all hair shades & blonde shades, is the ultimate nourishing straightening treatment that effectively eliminates frizz transforming bleached hair into a straight and smooth masterpiece. Featuring 4Bond Advanced Nanoplasty Technology with Keratin, Shea Butter & Hyaluronic Acid ensures intense hydration for dry hair, revitalizing every strand from within. With our proprietary formula, this straightening treatment also neutralizes and cools down unwanted warm tones while providing excellent straightening results to the hair. This unique formula guarantees a soft, shiny, frizz-free restored finish on Blonde hair (levels 7-12). Developed with luxurious and natural ingredients that are gluten free and vegan friendly.


  • Shake Well Before Use
  • Using very small sections of hair, apply a penny sized amount of product to each small section on clean dry hair from the root to ends.
  • Leave product on hair: 40 minutes (fine hair), 60 minutes (normal hair), 80 minutes (coarse hair). 
  • Rinse thoroughly with luke warm water.
  • Dry hair 100% smoothing with a vent brush.
  • After drying, divide hair into small sections, further smoothing with titanium iron 14 to 25 times per section. 
  • Use the temperature suitable for hair type.
  • After straightening, wash and condition the hair with STRAIGHTLINES Smoothing Shampoo & Masque.
  • Rinse hair and towel dry.
  • Using blow dryer, finger through (do not use a brush) until hair is completely dry.
  • Style as usual

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