Lots of guesswork, misinformation, and bloviating in some of the old answers to this old question. The (probably updated) product description says "derived from orange jasmin (Murraya paniculata), leaf geraniol extract". Sounds good, but "derived" is ambiguous. K2 MK4 has an exact chemical formula and structure, so, other than Isomers, synthetic is exactly the same as natural. The product text also says "The MK-4 in this product is 99% Trans suggests this is of natural origin and, if not, it is still bio-identical. No, all MK4 is NOT synthetic. It's the animal version of K2. Animals make it from K1 if they are eating the way they are designed to. Since most humans don't eat that way, we need to supplement. The always synthetic version is MK0, also known as K3 or menadione. It's not especially good for you. It is not allowed in the USA for human supplements.

Vitamin K2 Menatetrenone Mk-4 15mg per vegecapsule 90ct by Relentless Improvement

Vitamin K2 Menatetrenone Mk-4 15mg per vegecapsule 90ct by Relentless Improvement

Q: I would like to know the source of the K2 MK-4. Is it from dairy products or from animal source like eggs, meat etc?

Any and all predicts that claim to be vegan and mk4 are SYNTHETIC. Derived from geraniol extract which is synthetic. The ONLY sources for NATURAL mk4 are from ANIMAL products. Also, please note that this product is completely FALSE in the amounts listed. Consumer labs, a totally independent testing lab found that this product contains only 13,209 mcg, or 88.1% of the claimed potency. I'm TICKED. I've been buying this for years and feel completely ripped off by falsified claims from the manufacturer!

Q: I'm sensitve to mcc. the old formula was good. why was it changed?

This material required a filler to run on the encapsulation machinery. Because of the (groundless) witch-hunt against magnesium stearate and silicon dioxide, I reformulated to remove those materials. MCC was the alternative.

Q: What is the source of the magnesium stearate?

I think that is a question you would need to ask the manufacturer. Yet, there is another brand of K2 Menatetrenone that does not contain magnesium stearate. It is called Complementary Prescriptions - Ultra K2 15 mg. The capsules are smaller, and it is a bit more expensive. Yet, magnesium stearate is not in it.

4.6/5

Product ID: 726690580

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Details

Brand
Relentless
Primary Supplement Type
ビタミンK2
Special Ingredients
MK4ビタミンK2
Unit Count
90.00 個
Item Weight
15 Milligrams

🌱90 easy-to-swallow vegetable capsules

💊15mg pure Vitamin K2 MK-4 per capsule

🧪FDA-registered lab tested, GMP compliant

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Description

💥 Elevate your wellness game with pure, potent Vitamin K2 MK-4!

CLEAN FORMULA - No magnesium stearate or silicon dioxide additives
OPTIMAL DOSAGE - 15,000mcg MK-4 per capsule for potent bone & cardiovascular support
TRUSTED LEGACY - Serving health-conscious professionals since 2005
PLANT BASED CONVENIENCE - Vegetarian capsules designed for easy daily intake
PHARMACEUTICAL GRADE PURITY - Less than 1% cis-form impurity for maximum efficacy

Relentless Improvement’s Vitamin K2 Menatetrenone MK-4 delivers a powerful 15mg dose per vegetable capsule, verified by FDA-registered labs and crafted with pharmaceutical-grade purity. Free from common fillers, this GMP-compliant supplement supports bone and cardiovascular health with trusted quality since 2005.