STEPS:

Step 1: Wet hair thoroughly.
Step 2: Shampoo with sulfate-free shampoo and rinse shampoo out. 
Step 3: Apply conditioner, let them sit for at least 10-15 minutes and then rinse them out. 
Step 4: Apply silicon-containing hair treatment/mask, let them sit for at least 10-15 minutes and then rinse them out. 
Step 5: Squeeze out the water and comb through the hair. 
Step 6 : Clip the hair to the hangers with clothes pins. 
Step 7: Hang to air dry.(DO NOT BLOW DRY)

Notice:
1.It is normal for some hair dye to bleed when the first time you wash your hair extensions.
2.As with any clip-in hair extensions, minimal hair fallout when wash the clip ins which is an expected occurence.