Upgrade Keratine Professional Hair Straightener

Upgrade Keratine is a professional hair straightener featuring Upgrade’s Bio-Infrared technology. Instead of concentrating heat on the surface, Bio-Infrared delivers red-light heat within the hair fibre for a uniform, controlled style. This approach supports reliable salon performance while respecting the hair’s structure.

Bio-Infrared tools allow you to work at lower temperatures compared with traditional straighteners, helping reduce thermal stress while enhancing smoothness, softness and shine. In salon services, Bio-Infrared heat also supports the absorption of care treatments without additional processing time.

Keratine sits within Upgrade’s professional Bio-Infrared range. It is designed for precise, consistent styling and to complement treatments that benefit from gentle, effective heat activation.

How to use

1. Ensure hair is clean, dry and thoroughly detangled before styling.
2. Divide hair into manageable sections to maintain control.
3. Select a suitable temperature, starting lower and increasing only if needed.
4. Place the straightener near the roots and glide smoothly to the ends in a steady pass.
5. Repeat on the remaining sections, allowing hair to cool before touching up if required.
6. If used alongside a treatment, follow the treatment’s instructions and activate as directed with the straightener.