Two things you should check out:
2. California Baby Tea Tree & Lavender Shampoo & Bodywash. It smells good and didn't make even Becca break out, which is nothing less than a miracle. The tea tree oil is definitely helping with the cradle cap, which STILL hasn't gone away in almost nine years. Kind of expensive, and unlike a lot of expensive shampoo, you can't honestly say that it will last "forever." Anyway, I love it. I bought it at Target, but I've also seen it at Whole Foods.
Disclosure: If you use the Amazon link to buy the shampoo, I might see a penny out of it. Otherwise, this post was not solicited or compensated in any way.