Furthermore, evidence shows that most (up to 95%) pharmaceutical drugs found effective and safe in animal studies fail in subsequent clinical phases in human populations, mainly due to insufficient efficacy, toxicity, and the emergence of unacceptable adverse drug reactions, raising significant concerns for ethical and economic reasons (204211)
The only European supplier publishing all seven test parameters per batch (purity, identity, content, bioburden, endotoxins, heavy metals class 1 & 2)
But cost and insurance questions often get in the way
Belotero Balance has a shorter duration of six months
While experiences vary, the most commonly discussed side effects include injection site irritation, headaches, nausea, fatigue, dizziness, and temporary digestive discomfort