There is no doubt that sales can be greatly influenced by what the label or packaging is claiming. However, you want to get it right so you are not slapped with a hefty infringement notice.
Thanks to Evolve Brand Design for this blog post.

Can I Really Say That? Product Label Claims | Evolve Brand Design

There is no doubt that sales can be greatly influenced by what the label or packaging is claiming, we share the key aspects that the ACCC look for.

Source