A lightweight thermal protection spray, HEAT DEFENSE prevents and protects heat damaged hair. Seals in natural luster and provides light hold with amazing style memory. Amino acids from quinoa repair, while castor oil protects hair follicles, nourishes, and adds shine.

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Styling Tips
Scent: Bergamot Black Currant
Awards: Beauty Launchpad Readers' Choice

Sulfate Free
Paraben Free
Phthalate Free
Gluten Free
Dye Free
Cruelty Free
Certified American Made Beauty™
Created in a solar-powered lab
Eligible for free shipping with Auto Delivery
HEAT DEFENSE hair spray - prevents and protects head-damaged hair
Watch a tutorial
Styling Tips
All ingredients

To use:
For optimal protection, spray HEAT DEFENSE thermal protection spray generously throughout damp hair before a blowout or spritz it lightly on dry hair before using a flat iron, curling wand, or any other hot tool.

  • Think of HEAT DEFENSE as a fantastic foundation as well as a styling aid. In addition to thermal protection, it reduces friction for easier combing and smooths the cuticle.
  • With strong anti-static properties, HEAT DEFENSE is not only the best heat protectant for hair, it also keeps the flyaways at bay!
  • Too hot to handle? Your hair type, health, and texture all matter when it comes to deciding how high to set your iron. We always recommend consulting with your stylist about what temp is right for you.

Water (Aqua), SD Alcohol 40B (Ethyl Alcohol), Polyurethane-14, AMP-Acrylates Copolymer, PEG-40 Castor Oil, Polysorbate-20, Fragrance (Parfum), Sodium Polystyrene Sulfonate, Phenoxyethanol, Panthenol (Pro-Vitamin B5), Hydrolyzed Vegetable Protein pg-Propyl Silanetriol, Hydrolyzed Quinoa, Helianthus Annus (Sunflower) Seed Extract, Ethylhexylglycerin, Aminomethyl Propanol, Citric Acid.

HEAT DEFENSE  is a must if you are using hot tools – smoothing and revitalizing your hair’s natural shine.

– Jessica, Master Stylist


Color Protect.

Give your colored hair a new ally. Our nourishing and moisturizing color-preserving collection safeguards color-treated tresses from heat and the elements. The RINZU Collection features shampoos and conditioners, violet  toning systems, and uv sprays designed to protect and nourish color-treated hair.

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