6. Vinegar
Vinegar is well-known to be an ingredient in toners and other skincare products, which prompts people to think they can use it on their skin at home and get the same effect. But the misconception here is that you can use just straight up vinegar on your face, which is so wrong!
Vinegar is acidic and can cause your skin some real issues, and it gets worse as it ages and becomes stronger. It dries out your skin, can cause breakouts, and even end up burning it. Yikes!