1. Unscrew the pump of your Eau de Parfum bottle using the key provided with the refill 2. Use the funnel provided to pour the refill into your Eau de Parfum bottle 3. Reattach the spray applicator using the key and put the cap back on. Fragrance amp; notes: Top: Chamomile amp; Petit Grain Bigarade Heart: Lavender absolute, Orange Flower Absolute amp; Rose Turkish Absolute Bottom: Vanilla Bean, Musk amp; Galbanum