The nail organ is an integral component of the digital tip. It is a highly versatile tool that protects the fingertip, contributes to tactile sensation by acting as a counterforce to the fingertip pad, and aids in peripheral thermoregulation via glomus bodies in the nail bed and matrix. Because of its form and functionality, abnormalities of the nail unit result in functional and cosmetic issues. The structures that define and produce the nail (nail plate) include the matrix (sterile and germinal), the proximal nail fold, the eponychium, the paronychium, and the hyponychium (see the images below). Collectively, the nail bed (sterile matrix), nail fold, eponychium, paronychium, and hyponychium are referred to as the perionychium.

1. Olive Oil

To promote growth, it is essential to keep your nails well moisturized. Olive oil is the best when it comes to nail care. It penetrates deep into the skin and nails and thus helps nourish your nails. Plus, it contains vitamin E which improves circulation blood circulation, helps repair damaged nails and promotes nail strength and growth.

    Before going to bed, apply warm olive oil to your nails and cuticles and massage gently for 5 minutes. Wear cotton gloves overnight. Do this once daily.
    You can also soak your nails in warm olive oil for 15 to 30 minutes once daily to promote nail growth.

2. Coconut Oil

Coconut oil works well for healthy nail growth. It contains important nutrients to keep your nails moisturized and strong. It also strengthens your cuticles, which play a key role in nail growth. Plus, it helps cure hangnails, cuticle infections and fungal nails.
    Massage your nails and hands with warm extra-virgin coconut oil daily at night, before going to bed. Massage in circular motions to improve blood circulation.
    You can also prepare a nail soak. Mix 1/4 cup of organic coconut oil, 1/4 cup of honey and 4 drops of rosemary essential oil. Warm the solution in the microwave for 20 seconds. Soak your nails in it for 15 minutes. Follow this remedy one or two times a week.
3. Orange Juice

Another remedy that can boost nail growth is orange juice. Its vitamin C content encourages the production of collagen and keeps your nails healthy. Also, it has folic acid, which is essential for nail growth.

    Soak your nails in fresh orange juice for at least 10 minutes.
    Rinse them off with warm water, pat dry and apply some moisturizer.
    Follow this remedy once daily until you are satisfied with the results.

4. Lemons

Lemons contain vitamin C that is essential for nail growth. Also, it helps treat yellow nails and gives your nails a nice shine.

    Prepare a nail soak with 1 tablespoon of lemon juice and 3 tablespoons of olive oil. Slightly heat the solution in the microwave and then soak your nails in it for 10 minutes. Follow this remedy daily.
    You can also rub a slice of lemon on your nails for 5 minutes, then rinse them with warm water. Pat dry and apply a moisturizer. Do this once daily. Avoid rubbing lemon on your nails if you have any cuts or hangnails, as it may sting.
5. Horsetail

According to ancient Greek and Roman herbalists, horsetail is an effective herb for nail growth. Being a source of calcium, silica and other useful minerals, horsetail contributes to the overall health of your nails.

https://emedicine.medscape.com/