I used these two amazing products (Blondes treatment and Miracle Repair) on my Brazilian hair extensions. The Blondes treatment helped take out the yellow undertone and made my blonde more vibrant and even.  Miracle Repair (which I use faithfully every two weeks) made my hair more manageable and reduces split ends. Just a FYI, this product is so amazing because with hair extensions since it isn't actually your hair, it's hard to correct split ends and over-processing but these two products combined together really made my extensions look better than I purchased! Thank you.