Patented All-Trans Version Of K2 (K2Vital): K2Vital All-Trans K2 Mk7 Is Better Than Non-Trans (Cis) Mk-7, Mk-4, And Full Spectrum K2. All-Trans K2 Has A Half-Life Of Nearly 3 Days And It'S Effects Reach Every Party Of The Bottom. It Is Also Absorbed Much Better Than Generic K2 Mk7 Not Like Other K2 Supplements - Most K2 Supplements Contain Little To No All-Trans K2. Since The Benefits From K2 Are Derived Solely From The All-Trans Form Many K2 Supplements Are Merely Placebos Providing Little To No Benefit Don'T Take Vitamin D3 Without All-Trans K2 Mk7: Taking D3 Without An All-Trans K2 Can Cause Dangerous Increases In Serum Calcium Levels And May Induce Short-Term Hypercalcemia Maximum Absorption K2 D3 Vitamin Supplement: Liquid D3 K2 Drops Are Absorbed Better Than Capsule Or Softgel Alternatives Manufactured In The Usa From Globally Sourced Ingredients, Gluten Free, Non Gmo, Third Party Tested; Doublewood Supplement'S Patented K2 D3 Drops Are Manufactured In The Usa From Globally Sourced Ingredients, Contain No Gluten, Are Non-Gmo, And Third Party Tested For Purity And Potency