Keep nails short and file gently in one direction
Apply a moisturizing hand cream and cuticle oil regularly
Wear gloves for washing dishes, cleaning, and gardening
Avoid using nails as tools
Limit exposure to water, harsh soaps, and chemicals
Use a protective base coat or nail strengthener
Remove nail polish gently with acetone-free remover when possible
Avoid biting, picking, or peeling nails
Increase intake of protein, iron, zinc, and biotin-rich foods
Stay hydrated
Treat underlying issues such as fungal infection, eczema, or psoriasis
See a dermatologist if cracking is persistent, painful, or severe