The general recommendation for deep conditioning hair is about once every one to two weeks. This frequency helps maintain moisture, softness, and manageability without over-conditioning. People with very dry or damaged hair might deep condition up to twice a week, while those with fine or less dry hair might do it once every two to four weeks. Curly hair types usually benefit from more frequent deep conditioning, even weekly, to maintain bounce and hydration. Seasonal changes and lifestyle factors like swimming or heat styling can also influence how often deep conditioning is needed. In summary:

• Normal to dry hair: once every 1-2 weeks
• Very dry or damaged hair: up to twice a week
• Fine or less dry hair: every 2-4 weeks
• Curly hair: about once a week
• Adjust as needed based on hair feel and condition

This balanced approach prevents moisture overload and strengthens hair over time without weighing it down or causing fragility.