I would like to display the field without a name on the product page

Hello,

Yes, it's possible you have to add a custom css command, follow me step by step :
1. Learn how to add css command, here

2. At the end of your css frontend file, this kind of command :
tr.hikashop_product_custom_CUSTOM_FIELD_NAME_line label {
display: none;
}

Hope this will help you
Regards

Hi,

Yes, it can be done with some simple CSS.
But I can't say what exact CSS code it should be as you didn't provide the URL of that page.

Hi,

You can use this CSS:

.hikashop_item_big_line td.key{ display:none; }