Inclusion Criteria:  Adults aged over 18 No recent history (within 2 years) of clinically significant medical conditions including, but not limited to, malignancy (and treatment for malignancy), cardiovascular, neurological, psychiatric, renal, immunological, endocrine (including uncontrolled diabetes or thyroid disease) or haematological abnormalities that are uncontrolled*. Participant's full agreement and ability to consent to participation in the study At least 1 migraine (not headache) episode every 2 months as classified according to the International Classification of Headache Disorders, 3rd edition (ICHD3) for migraines published by the International Headache Society as detailed in section "Classification" Access to a computer or smartphone for completing online questionnaires and events.  Exclusion Criteria:  Use of long-term medication (unless for controlled medical condition as above) Pregnant, trying to get pregnant or lactating women^ Chronic past and/or current alcohol use (greater than 14 alcoholic drinks week) Smokers Allergic or hypersensitive to any of the ingredients in the active or placebo formula Use of preventative migraine medication  Migraines that have reported:  To occur on 15 or more days/month for more than 3 months, which, on at least 8 days/month, has the features of migraine headache. A debilitating attack lasting for more than 72 hours.  A seizure  A medical condition will be considered uncontrolled if the participant reports ongoing treatment, a change of either medication type or dose in the past 3 months or any change in symptoms within the past 3 months.  Any person suspecting they may be pregnant (e.g. missed period, nausea, fatigue) will be directed to attend their GP for a pregnancy test prior to enrolment in the trial.