The liver is a major site of SAM production and methionine metabolism
For patients without absorption disorders, high-dose oral B12 supplements (1,000-2,000 mcg daily) have been shown to be comparably effective to injections in correcting mild to moderate deficiency
Campione et al 20 found that enzyme glutathione-s-transferase-pi (GST-pi), present in keratinocytes and melanocytes, protects cells against tumor progressionnotably, sun exposure-associated melanoma cells
Complementary therapy (e.g., physical therapy, counseling/pain psychology, stress management), should be considered as they may minimize the dependence on pain medications
Without proper sun protection, you could end up with more sun damage and pigmentation than you started with, essentially undoing retinols benefits
A : Yes, glutathione supplements can be taken long-term