Hair Damage, Breakage & Dryness: All you need to know.

There’s so much information out there when it comes to getting a handle on hair damage. Whether you are trying to assess the level of damage or trying to figure out how to treat a specific type of damage, it can be hard to know where to begin. That’s why we’ve assembled all you need to know – from causes to prevention – when it comes to hair damage, hair breakage and dry hair.

article-duration
5 min read
L'Oréal Professionnel Team
16/12/2025

All your questions and our answers on hair damage, breakage & dryness.

  • What causes hair damage and hair breakage?

    Hair damage can be caused by a number of factors including: excessive heat styling, chemical processing, and harsh environmental conditions (like UV rays or chlorinated water).

  • How can I know if my hair is damaged?

    Some signs of hair damage include frizz, dryness, flyaways and hair breakage.

  • How does hair dryness contribute to hair damage?

    Hair dryness is an indication that the hair is missing moisture and hydration, and that something has contributed to a compromise of the hair’s outer layer.

All you need to know about hair.