Rated 4.8 (10,839)
Thyroid Support Drops - 2 Bottles - 1 Month Supply
A science-backed blend of selenium, zinc, iodine, L-tyrosine, and ashwagandha to restore thyroid function.
$39.99
We offer a 60 day money back guarantee. If you aren't satisfied, you get your money back.
How to use
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Take 2 dropperfuls daily with food, preferably in the morning.
For best absorption, take Josaine at least 4 hours apart from any thyroid medication (like Levothyroxine or Synthroid).
Ingredients
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Vitamin A (as Beta Carotene), Vitamin C (as Ascorbic Acid), Vitamin D3 (as Cholecalciferol), Vitamin B6 (as Pyridoxine Hydrochloride), Folate (as L-5-Methyltetrahydrofolate Calcium), Vitamin B12 (as Methylcobalamin), Iodine (as Potassium Iodide), Zinc (as Zinc Sulfate), Selenium (as Selenium Amino Acid Chelate), Copper (as Copper Gluconate)
- Gluten Free
- Vegan
Shipping
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Orders are typically shipped out quickly in 1-3 days after purchasing.
Each order comes with a unique tracking number. That way, you'll know where your order is and when it will arrive!
Returns
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Enjoy hassle-free returns when you shop with us. If you're not satisfied, return your order within 60 days of delivery for a full refund.
Check our refund policy or contact us for any issues. We're here to help you every step of the way.
Linda O'Reilly
My endocrinologist looked at my labs and asked what changed. My Free T3 went from 2.1 to 3.5 without changing my medication dose. I just added Josaine.
Why “Normal TSH" Doesn’t Mean Your Thyroid Is Actually Working
Many people on levothyroxine are told their thyroid levels are “normal” — yet they still feel exhausted, foggy, cold, and stuck with stubborn weight.
That’s because standard thyroid testing focuses almost entirely on TSH, not whether thyroid hormone is actually being used at the cellular level.
Levothyroxine supplies T4 — an inactive hormone. For your metabolism, energy, and brain to function properly, your body must convert T4 into active T3 inside your cells.
If that conversion isn’t happening, symptoms can persist — even when labs look “perfect.”
Why Pills Haven’t Been Working And Why Sublingual Drops Do
After years of hypothyroidism, digestion and nutrient absorption often become impaired.
This means many traditional supplement pills aren’t fully absorbed, even when taken consistently. Instead of reaching the bloodstream, key nutrients can pass through the gut unused.
That’s a major problem, because the conversion of T4 into active T3 depends on specific nutrient cofactors — including selenium, zinc, and iodine.
Sublingual liquid drops work differently.
They’re absorbed directly through the tissue under the tongue, bypassing the digestive system entirely. This allows critical thyroid-supporting nutrients to enter circulation without relying on a compromised gut.
For long-term thyroid patients, this delivery method isn’t a preference — it’s a requirement.
Numbers Don't Lie.
Numbers Don't Lie.
50k+
People with thyroid issues trust Josaine Thyroid Support
82%
Experienced increased energy levels and less brain fog
81%
Noticed improved metabolic function
79%
Of people who experienced hair loss due to thyroid issues noticed a reduction
Based on internal studies and customer feedback surveys.
What customers think
Judy,
69
Verified Buyer
Honestly didn't think anything would help since my doctor kept saying my labs were fine but I'm sleeping better and the brain fog is actually lifting. Been using it for about 5 weeks now and I'm really glad I gave it a shot.ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
Thyroid Support Drops
$39.99
Purchased on November 14th, 2025
Sharon,
54
Verified Buyer
I've been taking this for two months and the difference is wild. I used to need a nap every single day just to function and now I'm actually getting through work without feeling like I'm underwater. The weight hasn't moved much yet but everything else feels so much better that I'm staying patient with it.ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
Thyroid Support Drops
$39.99
Purchased on December 11th, 2025
Olivia,
39
Verified Buyer
I’ve struggled with low energy and stubborn weight for years and always felt like something was ‘off,’ even when I ate well. After about three weeks on these drops, I noticed my mornings were easier. I wasn’t dragging myself out of bed anymore. By the second month, the scale finally started moving without me changing anything drastic. My body feels like it’s working with me again instead of against me
Thyroid Support Drops
$39.99
Purchased on Jan 5th, 2025
Michael,
60
Verified Buyer
The brain fog was making me think I was losing it, but within a month of using this I could actually finish sentences again without forgetting what I was saying halfway through!ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
Thyroid Support Drops
$39.99
Purchased on May 17th, 2025
Frequently Asked Questions
Is it gluten-free and vegan friendly?
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Yes, our Thyroid Support Drops are both gluten-free and vegan friendly.
Can it give me iodine poisoning?
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Unless you are taking a high-dose of iodine already, there is no risk of getting iodine poisoning from our Thyroid Support Drops.
Where are you based?
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We are a company based in London, England with carefully selected manufacturing partners to ensure our products are of the highest quality.