You Will Need:
First, wet the tip of your brush with semi-hot water from your faucet, avoiding the part where the bristles meet the metal. If you do wet that part, the brush bristles are more succeptable to falling out.
Next, swirl some baby shampoo into lukewarm water in a small bowl, or lather some in your hand. Gently massage your brush into the palm of your hand or swirl it around in the water!
Now, dry off the brush (no heat aka hair-dryers) and re-shape the bristles. Since you will want your brushes to dry at an angle, dump out the water from your small bowl and flip it upside down- then place a towel over it.
Finally, remeber to place your brush on the towel to dry- this might take 3-4 hours, so I reccomend doing this at night!