Use of Olive oil for nail growth is very effective. Brittle nails are a bothersome condition due to over drying of the cuticle and nail bed. This causes difficulty in growing healthy, strong nails. There are several over-the-counter remedies to strengthen and moisturize nails, however, olive oil applied daily may give the same results. Olive oil penetrates the skin and nail, to help repair damage and soften nails and cuticles, which leads to nail strength and health.