PhenGold While numerousPhenGold supplements can effectively help men overcome some common issues they may be experiencing in the bedroom, it should be noted that a large number of over-the-counter enhancement supplements for men have caused serious side-effects. Possible Side effects ofPhenGold Supplements. These ingredients are natural testosterone boosters, which show on both desire level and quality of erections. It is more of an overall enhancer for aging men addressing all aspects ofPhenGold and not just sexual. However, it basically boosts testosterone level and it is actually not designed to improve the sexual performance of the user. Ageless Male is also a goodPhenGold product.