The Histamine Intolerance DNA Add-On requires an Ultimate Methylation DNA Test purchase. It helps patients identify the right foods and supplements to reduce histamine intolerance symptoms caused by DAO enzyme deficiency and widespread histamine receptors. This test can be ordered at the same time as the Ultimate DNA test or it can be ordered within 6 months of your Ultimate methylation test results date. The DNA used to produce the Histamine report is from your original Ultimate cheek swab - no additional swab kit is dispatched. Please add code SHIP90 for UK Or OVER90 for overseas orders at checkout to remove shipping charges. Lab test results only – no support = £75 Lab test results & personalised written report = £95 Lab test results & 30 minute Zoom call = £115 Lab test results & 30 minute Zoom call & personalised written report following your call = £135