This study seeks to expand the approved indication of use for a UKCA approved IVD device. PocDoc lipids is approved for professional use to measure the levels of lipids in a fingerprick blood samples. This study will investigate the usability of the device by untrained lay people in order to expand the device's utility to the self-test setting.

Inclusion Criteria:

• Signed informed consent form
• Subjects are legally competent and capable to understand character, meaning and consequences of the study
• Subjects own an approved mobile device (these will be available at the time of the study on the PocDoc website and a link will be contained in the PIS)

Exclusion Criteria:

• Being unable to give informed consent
• < 18 years or > 85 years
• Legally incompetent
• Language barriers potentially compromising an adequate compliance with study procedures