If a bumpy, ridged nail bed is completely ruining your mani, you might need to increase your vitamin B9 intake.
Otherwise known as folic acid, this vitamin repairs and multiplies the cells that make up nails, which speeds up growth and promotes overall nail health. It has also been shown to boost strength and prevent peeling.
‘Folic acid is responsible for healthy cell growth in skin tissue as well as hair and nails,’ explains Griggs. ‘A true deficiency in folic acid may cause discolouration and contribute to brittle and weak nails.’
If you think you’re lacking, foods like beans and whole grains are rich in folic acid – but you can buy folic acid supplements over the counter, too.