@Eleanor o the answer is:
Do vendors pay Peptide Critic? ️ It appears that some vendors do pay for advertising, sponsored placement, partnerships, or promotional arrangements on the site.
Do vendors pay for reviews? ️ Peptide Critic explicitly says no, claiming reviews are user-submitted and cannot be bought or modified by vendors.
The distinction is:
Paid advertising/sponsorship: Yes, appears to exist.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Paying to change review scores or remove bad reviews: Peptide Critic says no.