Using Mk professional's Leave-in product that contains keratin and protects hair from the sun's UV rays is a great option to keep hair healthy and protected. Here are the benefits and optimal uses of this type of product:

Benefits of "Live In Mk professional:

1. UV protection:

   - Damage prevention: Provides effective protection against the sun's harmful rays that can cause hair damage and dryness.

   - Maintain hair color: Helps protect the color of dyed hair from fading.

2. Keratin:

   - Strengthen hair: enhances the strength of the hair and protects it from damage caused by external factors.

   - Softness and shine: Gives hair a smooth texture and healthy shine.

3. Protection before swimming:

   - Chlorine and salt protection: provides a layer of protection for the hair from the effects of chlorine and salt water, reducing dryness and damage.

4. Heat protection:

   - Hair Packaging: Provides a protective layer that helps reduce damage caused by the use of thermal tools such as a hair dryer and iron.

   - Reduce split ends: Helps maintain healthy ends of hair and prevent split ends.