This is very effective to help treat psoriasis. Contains sweet almond oil, and a 5 essential oil blend. This is a 4 oz spray bottle that squirts out in one steam because of the thickness of the Sweet Almond Oil. You would squirt in into your hand and rub it on the affected area. It helps with relieving itching ,dry flaky skin,and helps soften skin to speed up healing. My Essential Oils are pure, natural, highly concentrated and free of fillers and synthetic compounds. Always remember to shake well before spraying to make sure all the oils get mixed well to be effective