How to avoid the "ripple" effect when saving an image in Photoshop?

Question

Design

Hello.
I have a question - how to save a banner (picrelated) without quality loss? So that there are no ripples. Especially in small print.
and PSD

Answer 1

Like this: https://s3-eu-west-1.amazonaws.com/v-temp/img/Bez_...

Answer 2

The conditions of the problem are incomplete without a description of the actions after which this picture appeared.
But I suspect that it's a matter of decreasing with bicubic interpolation. Replace Bicubic with Bilinear.