Garlic is a rich source of sulfur. Sulfur, the third most abundant mineral in the human body, plays a vital role in hair growth. It is essential for development of keratin, the protein that gives the hair its structure and forms a protective layer on the hair shaft. Without sufficient sulfur the hair becomes vulnerable to breakage. Furthermore, sulfur helps in extending the growth phase of the hair growth cycle. Scientific studies suggest that topical application of garlic stimulates hair growth. It helps in arresting hair loss and strengthens the existing hair.
If you are troubled by excess hair loss or poor growth, you can use garlic in any of the following ways to regain the strong and healthy tresses.
1. Garlic Juice:
Crush few cloves of garlic and extract the juice. Massage the scalp with the garlic juice, focusing on the areas where the hair has become thinner. Leave the garlic juice to dry. Rinse off with water. Apply the garlic juice thrice each week. Repeat this simple garlic remedy for a few weeks to improve hair growth. 
2. Garlic In Oil:
Crush few cloves of garlic and boil in coconut oil or olive oil. Massage the scalp with the garlic infused oil, preferably in the night before retiring to bed. Let the oil sit on the scalp overnight for maximum effect. In the morning, wash your hair with mild shampoo. Repeat this at least thrice each week. Garlic oil stimulates circulation in the scalp and assists in regeneration of the hair follicles, thereby promoting hair growth. 
3. Garlic, Coconut Oil And Pepper:
Coconut oil moisturises and nourishes the scalp and strengthens the hair follicles. Pepper is known to help in stimulating circulation in the scalp, which increases supply of oxygen and nutrients to the hair follicles. The effectiveness of the garlic remedy increases when coconut oil and pepper are added to it. Blend few cloves of crushed garlic with coconut oil. Add a pinch of pepper. Massage your scalp with the mixture. 
4. Garlic And Onion:
Just as garlic, onion too is an excellent source of sulfur compounds that stimulate hair growth. Onion and garlic can be combined together and applied to the scalp to promote faster hair growth. Slice a medium sized onion and put it in a blender. Add few cloves of garlic and blend until you get a smooth paste. Apply the garlic and onion paste to the scalp. 
5. Garlic And Wine:
You can also combine garlic with wine and apply the mixture to the scalp. Crush four cloves of garlic and add them to a bottle of red wine. Let the garlic cloves soak in the wine for a week. Instead of wine, you can even use vodka. After the garlic compounds had infused in the wine, wipe your scalp with the garlic and wine mixture twice a day. 
6. Garlic And Honey:
Garlic and honey poultice helps in reducing hair loss and promotes hair growth. To prepare the poultice you will need two heads of garlic and two tablespoons of honey. Peel and crush the garlic cloves. Mix them with the honey. Apply the mixture to the scalp in the night. Leave it on overnight. Wash off the mixture in the morning. 
7. Garlic And Aloe Vera Juice:
Mix a tablespoon of garlic juice with equal amount of aloe vera juice. Apply the mixture to the scalp. Let it sit on the scalp for 1 to 2 hours. Rinse off and wash your hair with gentle shampoo. Repeat this two to three times each week.