Can someone with nut allergies use this product? Sjolie's Original Solutions contain an extract from the husk of the walnut; in most cases will not negatively affect those with nut allergies because the derivative comes from the husk instead of the nut. However, a patch test is always encouraged. How much product should I use? For one full body tan, use two ounces (increase if necessary) of product and apply a single coat. You should not spray more than one light coat. How long will my spray tan last with this formula? Your spray tan can last upwards of 7 days when you use this formula! It’s important to use spray-tan-safe products like the Sjolie Body Cleanser and Tan Extend to preserve your color for as long as possible. Can I mix this solution with other solutions? Only mix Rapid solutions with other rapid formulas; never mix a Rapid solution with a regular, 8-hour solution, or you’ll dilute the formula.