Natural or synthetic MK-4? Do you know where this mk-4 is sourced from? Natural, synthetic? And if either what do they make it from? Thanks!

MK-4 is not synthetic it comes from heathy animals. MK-7 is synthetic and/or comes from natto soybean which is an endocrine disruptor and causes cancer in many people. Do your research because MK-7 is not the natural form as claimed to be

Whst is better the mk-7 or k1,k2/4,k2/7?

It really depends on the individual -- I did not do well with K7 -- I have not problem with K2 however - you may find more info by googleling your question

They contain vitamin K-2, stevia, and lactose (milk sugar), so not vegan but vegetarian.

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🦴 Unlock your strongest self with every dissolve!

TRUSTED LEGACY - Crafted in the USA by Superior Source, pioneers in sublingual vitamins since 1998, ensuring quality and reliability.
FAST TRACK ABSORPTION - Sublingual dissolving tablets ensure rapid uptake—no water needed, perfect for busy professionals on the go.
BONE CALCIUM SYNERGY - Optimizes calcium direction to bones, reinforcing skeletal integrity and reducing risk of calcium buildup elsewhere.
PRECISION DOSAGE POWER - Each tablet delivers a potent 500 mcg of Vitamin K2 MK-4 for targeted bone and soft tissue support.
SENSITIVE SENIOR FRIENDLY - Gentle, easy-to-dissolve formula designed for sensitive stomachs and bariatric needs—wellness without compromise.

Superior Source Vitamin K2 500 mcg MK-4 offers a high-potency, sublingual vitamin supplement designed to enhance bone strength and soft tissue health by promoting efficient calcium absorption. With 60 gluten-free, instantly dissolving tablets, this USA-made formula caters especially to adults seeking fast, effective, and sensitive-friendly nutritional support.

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