2020BSZX04)
It depends on how depleted your iron stores are and which formulation is used

Ingredients: Water, Methylpropanediol, Glycerin, Beta-Glucan, Dimethicone, Titanium Dioxide, Niacinamide, Cyclopentasiloxane, Betaine, Polyglycerin-3, Eclipta Prostrata Leaf Extract, Laminaria Japonica Extract, 1,2-Hexanediol, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium Polyacrylate, Ethylhexyl Stearate, Isohexadecane, Panthenol, Dimethiconol, Hydroxyacetophenone, Butylene Glycol, Polysorbate 80, Centella Asiatica Extract, Ficus Carica (Fig) Fruit Extract, Fragrance, Glutathione, Glycyrrhiza Glabra (Licorice) Root Extract, Lactobacillus/Rice Ferment, Sorbitan Oleate, Triethoxycaprylylsilane, Trideceth-6, Hydrogenated Lecithin, Fructooligosaccharides, Hydrogenated Polyisobutene, Squalane, Disodium Edta, Argania Spinosa Kernel Oil, Isononyl Isononanoate, Polyglyceryl-10 Stearate, Amaranthus Caudatus Seed Extract, Butyrospermum Parkii (Shea) Butter, Cetearyl Alcohol, Panax Ginseng Root Extract, Polyglyceryl-2 Dipolyhydroxystearate, Stearic Acid, Ulmus Davidiana Root Extract, Hydrolyzed Hyaluronic Acid, Inulin Lauryl Carbamate, Carbomer, Pearl Powder, Ceramide Np, Polysorbate 20, Disodium Stearoyl Glutamate, Palmitoyl Pentapeptide-4

B12 shots also help us to look as good as we feel by promoting better sleep and healthier skin and nails