Which iodine do I use?

There are various types of iodine. Some are used for healing and others are antiseptic or have other uses. We’re going to cover the ones used for health.

There are two main “raw” forms of iodine used for health. Elemental iodine(I2) and potassium Iodide(KI).

Any of the forms we want to use for healing are going to contain either or both of these along with distilled water.

Elemental Iodine(I2)

First discovered by the French chemist Bernard Courtois in 1811, the element iodine was named two years later due to its purple color.

Sometimes people use the generic term “iodine” to refer to any of the many forms of iodine, which can add confusion to all of this.

But actual iodine is an element with the atomic number 53 on the periodic table.

Some people call elemental iodine other names like

  • iodine
  • molecular iodine
  • atomic iodine
  • (I2)

Then if we cause the proper chemical reaction involving potassium, we can mix the elemental iodine with potassium and create Potassium Iodide(KI).

Then if we cause another proper reaction, we can add more elemental iodine to KI and create potassium triiodide, more commonly known as Lugols.

Potassium Iodide(KI) and SSKI

Potassium Iodide(KI) is elemental iodine bound with potassium. This just happens to be a stable form that iodine can hang out in, and parts of our body can utilize.

SSKI is Super Saturated Potassium Iodide and is just a mixture of water and enough Potassium Iodide(KI) to keep the water suspended with as much of this stuff as possible. The amount that can be suspended by water depends on room temperature, but we shouldn’t have to worry about that unless the temperature its stored in changes rapidly.

Forms of iodine commonly used

Above I tried to explain what raw iodine is and how it can be mixed with other substances, like potassium.

Below are forms we can create with raw iodine. These are the forms we’ll read about as we learn about iodine and health.

  • Lugols liquid
  • Lugols pills
  • SSKI
  • Nascent
  • Kelp


Lugols is a recipe for a blend of elemental iodine and potassium iodide.

  • First blended by a guy named Jean Guillaume Auguste Lugol in 1829
  • The most commonly recommended and used form of iodine for long-term healing
  • Contains both forms of iodine our body prefers. Some organs require one or the other of these two forms
Lugols consists of:
  • 1 part Elemental Iodine(I2)
  • 2 parts Potassium Iodide(KI)
  • and distilled water
Sometimes referred to as:
  • Triiodide
  • Thiodine (Miss Lizzy’s)
  • “Strong” iodine
  • Aqueous iodine

Lugols Liquid

  • Can stain most surfaces which can usually be removed with vitamin C or hydrogen peroxide
  • Has an orange-brownish color that increases with the strength
  • The strength of the solution is adjusted with the amount of water vs total iodine
  • Absorbed by our stomach and stomach lining, unlike some capsule forms of Lugols
  • Should not be mixed directly with vitamin C
  • Usually the most economical form
  • Easily calculated at http://dropulator.com/

Lugol’s Pills

Common brand name: Iodoral

  • Same ingredients as Lugols Liquid without the water. 1 part Elemental Iodine, 2 parts Potassium Iodide
  • In a pressed pill form, which can be convenient to transport and consume
  • Bypasses our throat, tissue around thyroid, and our stomach. This can be slightly beneficial at first or to some of us with digestive issues, but these important cells eventually need access to iodine
  • Some people with poor digestion pass the pill completely undigested or absorbed which means we are not able to absorb as much as liquid
  • Usually one of the more expensive forms
  • Usually only available in 12.5mg or 50mg making it difficult to regulate small starting dose
  • Might evaporate the elemental form of iodine 1

SSKI Liquid

  • Approximately 50mg per drop, which makes it very economical
  • Yellowish, but clear on the skin compared to Lugols
  • Only contains one form of iodine compared to Lugols
  • Commonly used to avoid radioactive fallout in pill form

Nascent Liquid

  • Claims to be better by being “Activated”
  • Can be handy for getting started due to being weaker
  • Only has one form of iodine
  • Usually has fillers or additives
  • 2-3 times as expensive as Lugols
  • Does not have any science to show benefits over it’s raw form of iodine


Not a form of iodine, but a common supplement with iodine, so I’ve included it.

  • People claim its toxic, apparently forgetting which planet we live on, where everything is toxic anymore. I expand on this in my page about kelp
  • Contains small amounts of iodine as well as many various forms of iodine, which are handy for getting started
  • Also contains small amounts of various nutrients, making it easier than jumping right into the whole iodine protocol

Other forms of iodine

There are a few random brands of iodine with 150-250mcg or so of either or both forms of iodine. As long as they don’t have flavoring and odd fillers, they can work out well as we’re getting started. It’s best if they have both iodine and potassium iodide.

These weaker blends can be great for reintroducing our body to iodine. Some of these require 3 drops per serving to reach the 150mcg or whatever the label indicates, which means each drop a very small fraction of 1 drop of Lugols 2%. It’s still a good idea to learn about the supporting nutrients even when we are using very small amounts of iodine. My goal with all of this has eventually turned into cycling through as many nutrients as I can without overdoing any of them.

Just about any iodine is going to be better than no iodine. If I only have access to a poor form of a nutrient, I still use it sparingly for the time being till I have a chance to get my hands on something better.

Forms of iodine such as ammonium iodide or sodium iodide should probably be avoided. Once we have replenished our iodine levels over the course of several years, we might be able to use small amounts of these to force iodine into different places, but we should avoid them for the bulk of what we are doing.

Gimmick products

As iodine gains popularity, a lot of people are looking for ways to increase their profit margin by creating unique products which contain iodine. This section will contain a lot of my opinion.

There are companies like Miss Lizzy’s which add quality and value to their product. 

Products like the ones from ioTech have a larger amount of molecular iodine suspended which makes their antimicrobial etc abilities much stronger. This can be helpful when it comes to situations like dental health. These products have additives some of us are working to avoid. I use these products because I am not consuming the additives

But there are a handful of products for sale that are more focused on marketing than anything else. These end up providing a tiny amount of iodine at a larger cost. If this additional cost is not important to us this situation is not as bad. But if we are short on funds, we may want to learn how to avoid the bloat. 

Povidone is an example of what could be considered a gimmick. It has a (natural)plastic added to it so it sticks to our skin better and suspend enough iodine. This polymer has connections to increased cancer incidence in mouse studies. Imo there is no need to include a polymer with iodine. This would be like adding glue to our engine oil because its leaking/burning. There is no reason to use povidone over Lugols. Povidone even has a chance of becoming contaminated with.. bacteria, one of the things we’re attempting to avoid with it. It also loses its potency over time.

Povidone is commonly available to doctors. This causes more medical oriented people to know iodine by the name povidone. This is likely the only reason we ever hear it mentioned. If doctors had Lugols instead of povidone, we’d hear more about Lugols. When I see povidone mentioned, I just think Lugols.

The theorist in me wonders if povidone is widely used just to help pull people’s attention from real iodine and it’s potential. It’s difficult to absorb much iodine from povidone, it mostly stays outside our skin in the polymer.

Buying iodine

I’ve pulled together info about various common brands of iodine that are purchased by the iodine community. https://whyiodine.com/iodine-buyers-guide/

  1. https://restorativemedicine.org/journal/evaluation-content-powdered-iodine-supplements
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October 31, 2023

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