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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Thorne Vitamin K Supplement, Vitamin K K1, K2 (MK-4, MK-7), 60 Capsules, Set of 1 [Total 60 Capsules]

Thorne Vitamin K Supplement, Vitamin K K1, K2 (MK-4, MK-7), 60 Capsules, Set of 1 [Total 60 Capsules]

Product ID: 725801286

Details

Age Range (Description)
Adult
Brand
THORNE
Flavor
Unflavored
Item Form
Capsule
Primary Supplement Type
Vitamin K

💊60 pure, instant-release capsules

🦴Supports bone & cardiovascular health

🇺🇸Made in USA with premium quality

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10550 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💥 Elevate your wellness game with Thorne’s elite Vitamin K blend!

DUAL VITAMIN K POWER - Combines K1, MK-4, and MK-7 for comprehensive bone and heart support.
TRUSTED BY CHAMPIONS - Endorsed by 100+ pro teams and partnered with Mayo Clinic for cutting-edge research.
INSTANT RELEASE CAPSULES - Fast absorption for maximum effectiveness—feel the difference daily.
REPUTATION YOU CAN RELY ON - 4.8-star rating from 1,580+ users who swear by Thorne’s quality and results.
PURE ALLERGEN FREE FORMULA - No gluten, soy, dairy, nuts, or major allergens—clean nutrition you can trust.

Thorne Vitamin K Supplement delivers a potent blend of K1, MK-4, and MK-7 in 60 instant-release capsules, crafted in the USA with zero allergens. Trusted by professional sports teams and backed by Mayo Clinic research, this supplement supports bone density and cardiovascular health with a clean, pure formula that fits seamlessly into your daily routine.

Specifications

ASIN	B0797N3F9T
ASIN	B0797N3F9T
Age Range Description	Adult
Amazon Bestseller	#125,925 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #19 in Vitamin K1 Supplements
Brand Name	THORNE
Country of Origin	USA
Country of Publication	USA
Customer Reviews	4.8 4.8 out of 5 stars (1,579)
Dosage Form	Capsule
Dose Release Method	Instant Release
Flavor	Unflavored
Is Discontinued By Manufacturer	No
Item Dimensions	5.3 x 5.3 x 9.4 cm
Item Form	Capsule
Item model number	K171
Manufacturer	UVUBXT
Manufacturer	UVUBXT
Number of Items	1
Primary Supplement Type	Vitamin K
Product Dimensions	5.31 x 5.31 x 9.45 cm; 0.03 g
Special Ingredients	Vitamin K
Specific Uses For Product	Bone
Supplement Formulation	Multi-Supplement
UPC	693749006619
Unit Count	60.00 粒

Reviews

J**H

Love this brand and quality of the vitamins and supplements. Easy to swallow and easy to see dosage. I definitely feel better taking this and I will be purchasing again. Love they are a well-known brand and have a good reputation as well. This vitamin has great health benefits in my opinion. Price is where it should be.

24.01.2026

C**A

Like the product does not up set my stomach

3.04.2026

D**T

Great quality and good price.

23.02.2026

J**T

Ideal when you take this with the thorn 10,000 unit vitamin D it’s a great combination to get the maximum benefit

4.04.2026

D**E

Quality product.

7.02.2026

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