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Burns 31 (3), 310315

& Beck-Nielsen, H

The non-motor symptoms appear before the onset of motor symptoms for many years

For those seeking a general wellness boost, a monthly or quarterly injection is often plenty

The components are sold in the United States as research chemicals labeled for laboratory use only, not as approved drugs or supplements

Hydration status significantly affects periorbital appearance with dehydration exaggerating dark circles through increased blood viscosity pooling more visibly, skin dullness from reduced cellular hydration making circles more prominent, and impaired lymphatic function allowing fluid retention despite overall dehydration