While TestoGreens offers many benefits, there are some potential drawbacks. For one, it’s a powdered supplement, so some people might not enjoy the taste, even though it’s generally mild and can be mixed with other liquids. The need to take it daily, combined with the fact that results may take a few weeks to become noticeable, can be discouraging for some users who are looking for more immediate effects. Additionally, while the ingredients are all-natural, the supplement may not be suitable for individuals with allergies to specific plants or foods, such as those sensitive to cruciferous vegetables (like broccoli or kale) or seaweed-based ingredients like spirulina.