My husband bought 1 box of essence and 3 bottles of grey shampoo, joined the membership immediately and had 81% discount, with a gift of Seba bath oil at $5XX.
One more recommendation for oily hair is the Biopoint hair mask, there are 30% off + member 10% off now, around $106 (big size and can use for a long time), my husband told me that it is good, he uses it everyday as conditioner, and his hair becomes less oily even in the late afternoon.