What hair products are good for hair that breaks easily?

For hair care, I shampoo once a day.

I'm drying it with a hairdryer.

I don't dye or perm my hair often, but

When I dry my hair, the ends are dry and frizzy

It kept cutting off in chunks.

When I asked the hair salon, they told me to use a treatment.

I bought and used a product available on the market.

But maybe it's because I keep using the same product

In the end, it felt exactly the same.

 

I am currently using this product.

Likewise, at first it seemed to be getting softer, but

I don't think I'm seeing much effect these days.

 

Hair salons use professional beauty products like Shiseido

I heard that using it is much better.

I'm wondering if that's correct.

Has anyone used Shiseido products or...

If you have experienced improved hair quality with other products

I'd appreciate your advice.