Yes. GcMAFplus is a naturally occurring protein and is very safe. However it is important to be aware of who and where you are buying it from. All GcMAFplus products are manufactured in a GMP certified Australian laboratory and tested to be 100% bioidentical, uncontaminated and effective. In regards to effects upon the body, the only reported side-effects from using GcMAFplus (in rare circumstance from higher doses) have been mild detox symptoms such as a runny nose, nausea, fatigue and other flu-like symptoms.