Review title is The BLACK sprayers don't work as well as the WHITE ones [SEP] I know that seems impossible but I've had cobalt bottles with the white sprayers and have had ZERO issues.  I bought  12 more bottles and they came with black sprayers -- I use them with essential oils and they get so clogged and barely squirt!  I have takin them apart and cleaned them and it's no better.....and I use doTerra oils so it is a quality oil.  I'm in the process of ordering JUST the white sprayers but I have to pay S&H on them since they aren't on Prime.  :(