They are not really rivals doing the same job in the same place
Pineal Gland and Hormonal Balance As we age, the pineal gland which controls our body's internal clock and produces melatonin can become slower
Injection site reactions occur in a minority of users, manifesting as redness, swelling, or temporary discomfort at the administration location
Serious risks exist, no standard dosing exists, so caution matters
These brain regions serve as the body chemoreceptor trigger zone, the vomiting center
Regarding microbiota, in individuals with cancers other than prostate, colorectal, or ovarian malignancies, Proteobacteria, the number of the Firmicutes phylum, and Actinobacteria were increased compared to healthy donors (Kostic et al., 2012