abc juice glutathione Does Really Help Your Skin? Expert Insights Codeage Liposomal Glutathione+ Supplement -

However, test-tube and animal studies show that guarana extract may boost metabolism and limit fat cell production by suppressing certain genes ( Side effects: Because guarana is high in caffeine, it may cause insomnia, headaches, nervousness and increased heart rate and anxiety, especially when taken in high doses ( Summary Guarana which is especially high in caffeine may boost metabolism, but more research is needed to determine whether it suppresses appetite or promotes weight loss

2008 Feb;63(2):184-92

But the peptide inside has fundamentally changed

Due to the body being a water based system, oil soluble compounds are looked at as foreign objects