Making Saline Solution at Home

Normal saline is a 0.9% solution of sodium chloride (NaCl) in water. It is frequently used in medicine, as it has the same osmolality (concentration of salt) as blood. Furthermore, our cells are surrounded by the intercellular fluid of the same properties, so they are also comfortable in normal saline. It is commonly used for intravenous injections, rehydration, and for preparation of skin products. Besides that, saline solution is used for soaking the sponge pockets for Transdermal Direct Current Stimulation (tDCS).

Normal saline can be bought in pharmacy, but you can also make it at home in several simple steps.

You would need:
• A clean, preferably sterile bottle with lid
• Pure table salt or sea salt (iodine free)
• A large glass or a pot


1. Use 8 ounces of water (one glass) and 2.5 g of salt (1/2 tablespoon) and place them in the large glass or a pot.
2. Let it boil for 2 minutes.
3. After cooling, your normal saline is ready to use.
4. Preserve it in a jar with a lid.

Of course, as tap water contains certain amount of particles, your saline solution will not be entirely pure such as one purchased in the pharmacy. For pure normal saline, you would need to have sterile conditions and distilled water. Nevertheless, your home-made normal saline can be used identically as pure normal saline for external application on skin and mucosa.


The Omni Stimulator team have been researching how to make affordable tDCS devices for over 2 years. We not only consider ourselves leaders in the affordable tDCS market but we strive to create the best and most durable tDCS product available today. Every purchase of the Omni Stimulator comes with our famous 5 year warranty and “no questions asked” 1 year money-back guarantee & complimentary bonus software.

The Omni Stimulator ships globally and we use priority mail to ensure your product gets there and gets there fast with online tracking through USPS.


Our refund policy is taken very seriously. If you are not happy with the Omni Stimulator we will give you a full refund within 1 year. To receive your refund just contact us through our website with your PayPal details and you will be given a return address, upon arrival of the return you will be given a full refund.


We are so confident that the Omni Stimulator will last we have provided a 5 year warranty. If there is any problem with the Omni Stimulator within those 5 years just send the item back for a replacement device at our cost.