doi: 10.1038/s41541-021-00369-6 83 ChungYHBeissVFieringSNSteinmetzNF
There are no studies showing that taking B12 if your levels are normal will help your nails grow stronger or longer
PubMed: 18436195Clinical (RCT / meta-analysis) ref-8.Shahbazian H, Shayanpour S, Ghorbani A Evaluation of administration of oral N-acetylcysteine to reduce oxidative stress in chronic hemodialysis patients: A double-blind, randomized, controlled clinical trial

Niacinamide, Butyrospermum Parkii (Shea) Butter, Beeswax, 1,2-Hexanediol, Caprylic/Capric Triglyceride, Terminalia Ferdinandiana Fruit Extract, Myrciaria Dubia Fruit Extract, Castanea Crenata (Chestnut) Shell Extract, Hamamelis Virginiana (Witch Hazel) Leaf Extract, Nelumbium Speciosum Flower Extract, Chrysanthellum Indicum Extract, Perilla Frutescens Leaf Extract, Anthemis Nobilis Flower Extract, Morinda Citrifolia Fruit Extract, Ceramide NP, Panthenol, Decapeptide-40, Sodium Hyaluronate, Glutathione, Acetyl Glucosamine, Hydrolyzed Collagen, Hydrogenated Lecithin, Polyglyceryl-10 Stearate, Glycerin, Cetearyl Alcohol, Polyglyceryl-4 Caprate, Carbomer, Glyceryl Stearate, Arginine, Allantoin, Ethylhexylglycerin, Adenosine, Diethoxyethyl Succinate, Cetyl ethylhexanoate, Phospholipids, Potassium cetyl phosphate, Dextrin, Polylysine, Caprylyl Glycol
10.1163/18762891-bja00035 26 DuT.LeiA.ZhangN.ZhuC