Can vinegar make your hair shine?

Yes. Vinegar particularly Apple cider vinegar and white vinegar are commonly used to have a shiny hair. Just mix the vinegar with water. It should be 1:3, 1 part of water and the 3 parts of vinegar. Apply the vinegar mixture into your hair, massage your scalp to make sure it gets to the root. Wait for 5-10 minutes then wash your hair with your favorite shampoo and conditioner.