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Use for arthritis, muscle cramps, joint pains, stiffness, and detox fluoride from the body. For maintenance, take ~3-10 mg/day (1.5 teaspoons or more throughout the day) for several months. It also helps to remove fungal infections and candida.
To remove fluoride, take 100 ml (14 teaspoons) of the concentrated solution per day. This is about 70 mg total, taken throughout the day. Do 5 days on and 2 days off.

Concentrated Boron Solution:
1 teaspoon of borax in 32 oz (one liter) of drinking water.
Direction (maintenance dosage): Take 1 teaspoon of the concentrate above with meals, 2-3x per day, in water or liquid
Drink plenty of water.
Men need about twice as much boron as women to be effective

Alternatively, for men, use 1/4 teaspoon borax in 4 cups water and drink throughout the day. For women, use half as much: 1/8 teaspoon in 4 cups water. 5 days on and 2 days off. Drink plenty of water and if have healing crisis, stop and recover before restarting.

Knee Pain Smoothie
1 cup milk (almond, kefir, rice)
1/2 frozen banana
1 Tbsp Blackstrap Molases
1 Tbsp chia seeds
1 Tbsp gelatin powder 
1/2 - 1 tsp turmeric powder
1 tsp conc. boron solution
1 tsp coconut oil/MCT Oil
 - blend well together and enjoy

Soda Borax Shampoo
4 Tbsp Baking Soda
1 Tbsp Borax
4 C warm water
- Dissolve all in water
- Wash hair with this instead of shampoo. Rinse out before using ACV rinse below.

ACV Hair Conditioner
4 Tbsp ACV in 4 C of clean water
- Use as hair conditioner after washing with Soda Borax Shampoo

Source: earthclinic.com/borax-remedy-for-arthritis.html