Although apple cider vinegar face toner is very beneficial for the skin, I recommend you to use it by taking into consideration the following notes.
1. Make sure to do a patch test on your skin. This will give you an idea of how your skin responds to the toner.
2. Apple cider vinegar smells a bit like feet, but once the toner dries on your face, the smell almost vanishes completely. I can tell you from my personal experience that it's worth tolerating the smell of apple cider vinegar. I got great results by applying apple cider vinegar face toner regularly.
3. What if you can't tolerate the smell? Then try letting the toner dry a bit, then rinse your face quickly with water.
4. Don’t hesitate to experiment with the ratio of apple cider vinegar to the water to find out what's best for your skin. But do not increase more than a 1:1 ratio of apple cider vinegar to the water.
5. Since the pH of apple cider vinegar is 3 which is highly acidic, I recommend you not to use it more than twice daily. Using it more than twice daily can cause problems to some skin types.
6. In this recipe, You can also substitute water with witch hazel, chamomile tea, cucumber juice, and aloe vera juice.