Why is there so much silicone dioxide in each capsule? I would not expect this from Thorne.

The amount of silicon dioxide in Thorne’s 3-K Complete is less than 2 percent of the total formula and does not affect the quality, efficacy, or safety of the finished product. Silicon dioxide is used to minimize moisture content and to help powders flow into capsules. Although silicon is sometimes confused with silicone (which is a synthetic compound), there is no chemical similarity between these two substances. Silicon dioxide is a naturally-occurring compound that contains silicon, a mineral that is ubiquitous in nature and found in many foods, especially those high in fiber, and, because it is necessary for bone growth and maturation, it is also often added to nutritional supplements designed for bone support.

How much Vitamin E is in this?

Thorne’s 3-K Complete contains 350 mcg of vitamin E, as mixed tocopherols, per capsule.

what is the source of the K-2?

The vitamin K (K1 and K2) in Thorne's 3-K Complete is from natural source geraniol, a monoterpenoid and an alcohol derived from rose oil, palmarosa oil, and citronella oil.

What is the vitamin a from? is it a natural source or synthetic? i see it is not soy. sunflower oil?

Thorne’s Vitamin K (formerly 3-K Complete) contains vitamin K1 and K2 (MK-4 and MK-7). The vitamin K1 and K2 (MK-7) are synthetic, vitamin K2 (MK-4) is derived from geraniol.

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🦴 Elevate your bone game with the pure power of Vitamin K!

PROUDLY MADE IN USA - Crafted with precision and purity, supporting your wellness journey with transparency.
DUAL VITAMIN K POWER - Combines K1 with MK-4 and MK-7 for superior bone and cardiovascular support.
PURE CLEAN FORMULA - No gluten, soy, dairy, or major allergens—clean nutrition you can trust.
TRUSTED BY CHAMPIONS - Chosen by 100+ pro teams and backed by Mayo Clinic research partnership.
BONE STRENGTH REINVENTED - Clinically relevant doses designed to optimize bone density and health.

Thorne Vitamin K capsules deliver a potent blend of Vitamins K1, MK-4, and MK-7 to support bone strength and cardiovascular health. Manufactured in the USA with allergen-free, pure ingredients, this supplement is trusted by professional athletes and backed by Mayo Clinic research, ensuring premium quality and efficacy for adult men and women.

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