The key involves adjusting subsequent moisturizer application rather than the serum itself
For example, fat-soluble vitamins may be insufficient in CF, while vitamin D deficiency has been linked to respiratory and autoimmune diseases (3641)
Consider milk thistle (200-400mg daily) for liver support
Severity of Pigmentation: Mild or superficial dullness may respond differently compared to deeper or long-standing hyperpigmentation
B12 injections supply vitamin B12 as methylcobalamin or cyanocobalamin, typically given intramuscularly into the deltoid, supporting red blood cell formation, myelin and nervous system health, and the metabolism of homocysteine, a process that can falter with vegan diets, malabsorption, or medications like metformin
This gives you confidence that what you're using is both safe and effective