This small shop in the Westfield Downtown stocks a great range of natural skincare. They have Antipodes - including the new mineral foundations, Jurlique, A'kin, Sukin and my favourite fragrant soaps by Blue Earth - try Warlock's Block for a deeply spicy scent. There is a massive selection of essential oils, aromatherapy is their specialty, and the owner is welcoming and incredibly knowledgeable.
I tracked this shop down online in search of a diffuser - I like to burn essential oils and was struggling to find place with the kind of selection I want. Extracts is great... they have a stunning selection of soaps (I couldn't help myself and bought a bunch at once on a whim, including a lavender-crusted and a rose-scented one... naughty). They also have a Kiwi corner scented with native flora, including some beautifully-packaged Pohutukawa-themed soaps and hand creams. It's especially worth the walk downtown because they stock Linden Leaves... a lovely range, I love the whole roses bottled in essential oils.