Murumuru butter is generally considered safe for topical use and is well-tolerated by most individuals, however, Dr Bisht said that┬аas with any cosmetic ingredient, there is a possibility of individual sensitivities or allergies.

Source: https://indianexpress.com/article/lifestyle/life-style/murumuru-butter-skin-hair-benefits-side-effects-how-to-use-8621159/

Usually, CBD is well-tolerated by the body, but it can produce side effects such as nausea and fatigue as well as make people irritable.

Source: https://www.healthcanal.com/health/longevity/cbd-near-me-alabama

While metformin is generally well-tolerated, some people may experience certain side effects.

Source: https://www.healthcanal.com/beauty/hair/does-metformin-cause-hair-loss