Safety and Performance of the Glyconics-SX System

Inclusion Criteria: * Apparently healthy adults (≥18 years of age) with known or unknown T2DM status willing to participate in and provide a written consent for the study * willingness to undertake assisted assessment of glycaemia by both the NIR spectra measurement, and HbA1c by finger prick test * Individuals with two visually assessed apparently healthy, undamaged, and intact fingernails, one in both right- and left-hand middle fingers Exclusion Criteria: * Individuals with any known medical conditions impacting either of the assessment methodology for glycaemia, such as * anaemia (iron deficiency sickle cell anaemia or similar) * haemoglobinopathies or atypical haemoglobin subtypes not detectable by regular assays, * severe renal impairment (CKD stage III-IV) or decompensated hepatic disease * severe Vitamin D deficiency * known severe immunodeficiency such as HIV, malignancy or other chronic condition significantly impacting assessment of glycaemia * eating disorders (as per clinical assessment) * Recent (within 28 days) blood donation * Any structural, deviating and visually detectable deviations in the appearance of the nails potentially impacting the spectra measurement, including * nail dystrophy or deformity * severe nail infections (onychomycosis causing visual changes in the appearance of the nail) * rare hereditable conditions impacting the structure of keratin * mechanical damage or marks on the surface of the nail after removal of nail polish * use of acrylic or gel nail decoration and polish, which cannot be removed * Any systemic or topical medication known to modify either the surface or structure of the nail or accuracy of HbA1c value.