Home » Are Essens Colostum products tested on animals? Are Essens Colostum products tested on animals? October 17, 2020 Hellen Off Products of the Colostum Essens are not tested on animals.Previous: Does Colostrum Essens contain lactic acid?Next: Hello, can you please tell me if diabetic patients should take colostrum permanently or in what doses and how long the period of use should be? I mean the people who need insulin injections as well as those who are just under medical supervision.