Specialized Hair - Bio Protein Loufish Mask - Bio Protein Defrost Mask is a without formaldehyde straightening product presented in a 200 ml package. This product is ideal for those looking for effective, safe and long-lasting straightening. Its formulation, rich in bioactive proteins and natural ingredients, nourishes and revitalizes the hair, providing a smooth, frizz-free effect. How to use: Wash your hair with a deep-cleansing shampoo to open the hair cuticles. Dry hair 100% and apply Bio Protein Defrizzing Mask evenly, starting at the roots and working through to the ends. Leave on for 30-60 minutes, depending on the thickness and texture of your hair. Rinse out 80% of the product. Blow-dry and finish with a flat iron to seal the cuticle and intensify the straightening effect by 15 to 20 times. Result: After using Expert Hair - Bio Protein Defrizzing Mask, your hair will be visibly smoother, softer and with a mirror-like shine. This treatment provides long-lasting straightening, keeping hair aligned and reducing frizz. Ideal for those looking for a practical and effective solution for straight, well-groomed hair. Package contents: 1-Expert Hair - Bio Protein Defrizzing Mask 2x100ml/6.76fl.oz