Gassy baby

So ladies I need help figuring out what to do about my gassy baby. He's 4 weeks old. We're using Enfamil gentle ease formula once a day or when we go out and rest of the day I breast feed him. But my LO is very gassy and gets very uneasy. Do you have any recommendations about any other formula I should try? Also we're using playtex bottles and tommee tippee bottle. Is there any other brand I should try. Please help me out and thanx in advance.

P. S. I know gas is very common in infants but I don't want him to be in so much pain.