The reason is that strong coating ingredients
combined with heat treatment
temporarily smooth and align the cuticle surface.
Until just a few days ago,
I only used shampoo when I showered.
I didn’t use conditioner or treatment,
just shampoo.
This is not an advertisement,
but I’ve been using “Ryo Shampoo,”
and I think it’s quite decent.
However, it seems quite difficult
to maintain good hair texture
with shampoo alone.
I wanted a “honest” perspective
on hair care,
so I searched “frizzy hair DC Inside”
on the internet.
I wanted to find raw, unfiltered advice
from a community called “DC Inside.”
After reading through many posts,
the conclusion was simple:
they recommended using a treatment.
So I searched for treatments on Coupang,
and bought one of the most popular
and cost-effective top products.
I tried it yesterday.
Right after using it,
my hair felt noticeably better.
I even thought,
“Was my hair capable of feeling this good?”
Even now, the next day,
my hair still feels quite good.
The method is simple.
After shampooing,
remove excess water,
apply the treatment
as if you are shampooing again,
then rinse it off.
That’s it.
I became genuinely curious
about treatments
and wanted to understand them more deeply.
Many people, like I used to,
pay attention to shampoo
but think of treatments
as just something
that “makes hair soft.”
However, in reality,
treatments are quite functional products
that temporarily smooth damaged hair surfaces
and protect them from external stress.
First of all,
hair is not living tissue.
Unlike skin,
it cannot repair itself.
Once damaged,
it cannot fully recover naturally.
Especially factors like dyeing, bleaching,
heat styling, blow-drying,
and UV exposure
gradually lift the outer layer of the hair
called the cuticle.
The cuticle has a layered structure
like overlapping scales.
When this layer is damaged,
moisture escapes more easily,
surface friction increases,
and issues like dryness, tangling,
and split ends become worse.
This is where treatments work.
Treatments usually contain ingredients such as
silicones, fatty alcohols, protein derivatives,
amino acids, and ceramides.
These substances coat or fill
the gaps in the damaged cuticle,
helping to smooth and refine
the surface.
In particular, silicone-based ingredients
form a thin protective layer
on the hair surface,
reducing friction
and helping to slow down
moisture loss.
That is why
right after using a treatment,
your hair feels softer and more manageable.
Another important point is that
treatments do not only improve texture,
but can also help reduce physical damage.
Damaged hair breaks more easily
during brushing,
but reducing surface friction
helps minimize additional damage
during brushing or drying.
Especially when hair is wet,
it is structurally weaker
than when it is dry.
So using a treatment after showering
can make a meaningful difference
in long-term hair care.
Some treatments also contain
hydrolyzed proteins,
which can temporarily bind
to damaged hair surfaces
and make the hair feel
more elastic and thicker.
However, it is important to understand that
treatments do not completely “repair”
damaged hair.
Restoring the internal structure
of already damaged hair
to its original state
is very difficult.
But they can slow down damage,
protect against external stress,
and help maintain
the current condition
in a more stable way.
In other words,
the core role of treatments
is not to “heal dead hair,”
but to manage and protect
the damaged surface.
That is why hair care
is less about dramatic one-time changes,
and more about reducing heat damage,
controlling friction,
and consistently maintaining
a protective layer.
In the end,
while good hair is partly genetic,
it can change more than expected
through small, consistent habits
repeated every day.
