Table 1.

Participant eligibility criteria.

Inclusion criteria	Young carers 1)Young people between the ages of 11–17 who self-identify as a carer of a person with a confirmed diagnosis of dementia (through self-report of the carer). 2)The person they are caring for is not living in a full-time care facility. 3)They have been caring at least weekly for at least 6 months.	Professionals 1)Have regular contact with young people and young carers (e.g., teaching staff involved in pastoral care, young carer charity workers, social workers in children’s services)
Exclusion criteria	1)Receiving treatment from Child and Adolescent Mental Health Services at the time of recruitment. 2)Unable to comprehend written English. 3)No access to the internet. 4)Have previously used ‘iSupport’ materials in the last 12 months.	1)No regular contact with young people and young carers as part of their work. 2)Unable to comprehend written English 3)No access to the internet