thorne: what is the leucine derived from in this product?

Thorne's leucine ingredient is derived from duck feathers (that are gathered off the ground and not taken directly from the ducks).

No, this is not a vegan product. Thorne's Magnesium Thyrocsin contains the amino acid, leucine. Their leucine ingredient is derived from duck feathers (that are gathered off the ground and not taken directly from the ducks).

Why isn’t the expiration date on the product?

Most Thorne bottles show expiration dates, however, some show a manufacturing date. If the product is showing a manufacturing date, it is good for 2 years from the manufacturing date. If you are still concerned, please contact us directly and we will be happy to help.

The label does not specify whether or not the product is vegan. It only specifies that it is gluten free. Neither the Leucine nor the silicon dioxide list source, so they may be a result of animal by product.

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Thyrocsin - Thyroid Cofactors for Thyroid Function Support* - Supplement with Vitamins B12, C & E, Ashwagandha, Iodine, Zinc, Selenium, Copper & L-Tyrosine - 60 Servings

Thyrocsin - Thyroid Cofactors for Thyroid Function Support* - Supplement with Vitamins B12, C & E, Ashwagandha, Iodine, Zinc, Selenium, Copper & L-Tyrosine - 60 Servings

Product ID: 3241991

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Details

Brand
THORNE
Flavor
Unflavored
Unit Count
120 Count
Item Form
Capsule
Item Weight
2.08 ounces
Item dimensions L x W x H
2.38 x 2.38 x

⚡Boosts energy & mental clarity

🌿Ashwagandha for stress & thyroid balance

🧪Third-party tested purity & potency

Description

⚡ Unlock your thyroid’s full potential — fuel your day, every day!

METABOLISM MASTERY - Supports healthy thyroid hormone levels to keep metabolism on point
ENERGY FOCUS AMPLIFIER - Vitamins B12, C & E combat fatigue and mental fog
THYROID POWERHOUSE BLEND - Botanical ashwagandha + iodine + L-tyrosine for optimal hormone support
CERTIFIED CLEAN TRUSTED - Third-party tested to guarantee purity and safety
CLINICIAN CHAMPION APPROVED - Preferred by 100+ pro sports teams and top healthcare practitioners

THORNEThyrocsin is a premium thyroid support supplement combining essential vitamins, minerals, and botanicals like ashwagandha and L-tyrosine. Designed to optimize thyroid hormone levels, it enhances energy, mental clarity, and metabolism. Third-party tested and trusted by elite athletes and healthcare pros, it delivers clean, effective thyroid cofactor support in 60 servings.

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