Meister, J
Gillard GO, Collette B, Anderson J, Chao J, Scannevin RH, Huss DJ, et al
Brands are catering to varied consumer needs by offering a spectrum of concentrations, from lower percentages (1-3%) suitable for beginners and sensitive skin to higher strengths (up to 8%) designed for targeted anti-aging and repair concerns
Cell lines and culture conditions HepG2 cells, a human hepatoma cell line, were obtained from the American Type Culture Collection (Manassas, VA) and were cultured in Dulbeccos modified Eagles medium (DMEM) containing 10% (v/v) fetal bovine serum, 2 mM glutamine, 5 U/mL penicillin, and 50 g/mL streptomycin at 37 C in a humidified O 2 /CO 2 (19:1) atmosphere
Which form (and whether either is right for you) is decided with your provider based on your goals and health history not something to guess at from a forum