T2 is the only thyroid hormone available over the counter, and most thyroid patients have never heard of it.
But there are several reasons that I think every thyroid patient should consider taking it.
Here’s why:
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#1. Healthy People Create It All The Time
T2, known as 3,5 diiodo-l-thyronine, is not new or dangerous.
Researchers have known about it for decades, it’s just not as well researched as T4 or T3.
In fact, scientists used to think it didn’t do much, but more recent research suggests the opposite.
Which leads us to…
Source: https://pmc.ncbi.nlm.nih.gov/articles/PMC6068267/
#2. It May Be The Most Powerful Thyroid Hormone Regulating Metabolism
Every thyroid hormone has an action, and T2 seems to specialize in boosting metabolism (some research suggests it’s stronger than T3 at doing this).
It does this by helping your body turn white fat into brown fat and by increasing cellular energy production.
Both of these help your body increase heat production and burn more calories at rest.
Source: https://www.sciencedirect.com/science/article/abs/pii/S0303720717300928
#3. It Complements Other Thyroid Hormones & Is Usable With All Thyroid Medications
Worried about interactions with your thyroid medication? Don’t be.
T2 perfectly complements both T4 and T3 and may help to stabilize their levels and support their function.
For instance, we know that T2 helps T3 more easily activate your cells (by acting as a ligand).

And my own experience suggests that taking T2 slows the breakdown of T4 into T3 and T3 into T2.
In other words, those hormones stay in your system longer, allowing them to do their job.
Source: https://pubmed.ncbi.nlm.nih.gov/23736295/
#4. It Helps Regulate & Lower Cholesterol
T2 helps your body clear extra LDL particles, which can help reduce LDL and total cholesterol in the blood.
This is huge for thyroid patients because low thyroid function leads to high cholesterol and an increased risk of conditions like heart disease.
Source: https://pubmed.ncbi.nlm.nih.gov/22948212/
#5. It Supports Muscle Tone
Through its actions on cytochrome c oxidase, T2 helps your muscles create more energy.
Extra energy means better muscle performance and recovery, which means better muscle health, faster muscle growth, and a higher metabolism at rest.
Compared to T3, it also preserves muscle mass during weight loss, making it ideal for thyroid patients who are actively losing weight.
Thousands of thyroid patients have added T2 to their regimen to get these benefits, and you can too.
Here’s how:
T2 Cream (recommended dose 25-50 mcg/day)
Link: https://www.restartmed.com/product/t2-cream/
or
T2 Capsules (recommended dose 100-200 mcg/day)
Link: https://www.restartmed.com/product/essential-t2/
Remember:
You don’t need a prescription for T2, and it can be added and used with all thyroid medications.