It's a question that has long divided the connoisseurs of headgear: which is more likely to cause acne, hats or helmets? The answer, it turns out, is not as simple as you might think. In this blog post, we'll explore the evidence for and against both hats and helmets in the great debate over which is more likely to cause acne.For hats, the evidence is largely anecdotal. There are plenty of stories out there about people who have experienced breakouts after wearing a hat, but it's hard to know how many of these are due to the hat itself and how many are due to other factors such as sweaty skin or dirty fabric. However, there is some scientific evidence that supports the link between hats and acne. A study published in the International Journal of Dermatology found that participants who wore hats had a significantly higher number of comedones (blackheads and whiteheads) than those who did not wear hats. The evidence for helmets is somewhat stronger. A study published in Acta Dermato-Venereologica found that participants who wore helmets had a significantly higher number of acne lesions than those who did not wear helmets. This suggests that helmets may indeed be a risk factor for acne. However, it's worth noting that the study did not find a correlation between helmet use and oily skin, so the mechanism by which helmets cause acne is still unclear. So, what's the verdict? Based on the available evidence, it seems that both hats and helmets can contribute to acne breakouts. If you're prone to breakouts, you may want to consider avoiding both hats and helmets altogether. Of course, if you can't live without your headgear, just be sure to cleanse your skin thoroughly after each use!