They found it worked, and now they are in the business that amounts to selling hair dye to bald people
It makes sense: steady astaxanthin use has been linked to small but noticeable improvements in skin moisture, elasticity, and UV resilience over time.1 While astaxanthin isnt truly edible sunscreen and does not replace actual sunscreen or SPF its one of the few antioxidant supplements supported by repeated human studies showing visible skin improvements
Figures 4A, D) suggest that the mechanism of action of this compound involves, at least in part, decreased CBS activity through the NF-B and Akt/GSK3 pathways
"While glutathione is a powerful antioxidant and theoretically could reduce oxidative stress in melanocytes, there is no robust clinical data showing that increasing dietary or supplemental glutathione can reliably prevent or reverse gray hair in humans." The body's regulation of hair pigmentation is complex, he added, and once melanocytes lose their ability to produce pigment, antioxidants alone are unlikely to restore it
Still, side effects from B12 supplements are possible, especially at higher doses, and include: Headache Nausea Vomiting Fatigue Weakness Diarrhea Tingling in the hands and feet Nasal spray Vitamin B12 is also available in a nasal spray
