What happens when you leave the conditioner in your hair overnight?

How long should leave the conditioner on the hair is the best? And what happens when you leave the conditioner in your hair overnight?
The best results are when the conditioner stays on the head for 2 to 3 minutes.

1. The conditioner does not stay as long as possible
   About protect hair vegetable use method, a lot of people feel protect hair vegetable to stay longer, better also to the moisture of the hair, think so actually is wrong. The expert tells us, protect hair element to be able to undertake nutrient is supplied to the hair inside certain time only, once exceed the effective time, not only cannot nourish beautiful hair, still, make its put in tuft easily, cause dry, bifurcate. Conditioner can neutralize the alkalinity in the shampoo, keep the hair in the best state of weak acidity, replenish nutrition to the hair, make the hair soft and smooth, and maintain healthy luster. Used properly, it also improves blood flow to the scalp and stimulates the hair papilla and hair mother cells. But the actual condition of the hair varies from person to person, and the conditioner doesn’t have the same effect for everyone.
2. Don’t apply conditioner to the roots
   When using hair conditioner, apply hair conditioner evenly on the hair, with emphasis on the hair tail. Do not apply hair root, or it will strengthen the secretion of scalp grease, causing the hair to look oily quickly. Then gently massage the hair for 1 minute, and then rinse with warm water. Best still let protect hair element to stay on the hair 5 minutes after massaging, can let hair absorb the nutrient of protecting hair element adequately so, this also is a good small skill.
3. Change the hair conditioner brand frequently
   It’s like changing your shampoo frequently. A brand of hair conditioner, in the ingredients, formulations are mostly closer to a single. So, use protect hair vegetable to also had better change a brand, or different series, should be in use 3 months or so, change another brand appropriately or have other effects protect hair vegetable. When the hair conditioner is used, the correct method is to comb the hair to make the hair conditioner evenly and smoothly distributed. If it’s an instant conditioner, use a towel to soak up the water in your hair before using it. If there is too much water in the hair, the conditioner cannot be effectively absorbed.