twinkle, there is no 12% iherb code.
the 12% discount is applicable when you place order more than $200.
For first time purchase, it's more worthwhile to use the USD5 off discount code ( you can use discount code <font size="+1">XEB299</font>)
if u place order before April 30, u get free international shipping too.. which makes it more worthwhile (may end up having more than 10% discount)