I highly recommend Perfect Serum.

Amore Mise en Scène Hair Essence

It's so famous that I'm sure everyone knows it.

It offers great value for the price.

I dye my hair often because of gray hair

My hair is very damaged.

It seems like applying serum before dyeing definitely reduces damage.

Usually, you just apply it mainly to damaged hair after washing it and before drying, then blow-dry.

Anyway, I bought two more today.