But what exactly is hair damage?

Hair damage occurs when any part of hair structure is altered, which weakens and damages the hair, and makes hairs look unhealthy. Damage to hair structures may happen in various ways,such as improper washing and drying of hair, grooming and styling hair:-
Which includes blow-drying, straightening, and too-tight ponytails.
chemical/coloring hairs, including hair dye, bleach, and perming.

There are three common types of hair damage:

1) Dull and Unruly Hair

How it Looks like; Frizzy, easily tangled, lacking shine, unmanageable hairs.

The Cause: Damaged hair cuticles. When cuticles (the outer surface of the hair shaft) are damaged, they open up and hair looks dull and frizzy, feels brittle and rough, and tangles easily.

The Culprit:Heat, UV rays, friction, high pH hair products

2. Fragile Hair

How it Looks like: Split ends, visible hair breakage.

The Cause: Cuticle and cortex damage. Cortex (responsible for hair strength, color, and pattern) damage weakens hair strands and makes them more vulnerable to breaking and splitting,exposed cortex is also prone to water damage during washing hair.

The Culprit: Hair color, chemical straighteners or perms, heat styling (blow dryer, curling iron, flat iron)

3. Thinning Hair
How it Looks like; Patchy or slow hair growth, excessive hair falling out.

The Cause: Damaged hair follicles. The hair follicle is the living part of your hair, it attaches to the scalp and is responsible for nutrition of your hair, helping our hair grow.

The Culprit: Product build up, excessive brushing and combing, extensions, chemical treatments

Now that you know how your hair gets damaged, it’s time to start giving it a little extra attention — not the kind that requires more time and frustration and styling products, but the kind that heals your hair from the inside out.