Synergy K
by Pure Encapsulations · capsule · 60 capsules
- On the market (NIH)
- UPC 7 66298 01568 2
- DSLD label 278366
- Serving 1 capsule
- 60 servings
Synergy K by Pure Encapsulations lists 4 ingredients, 4 with an amount per serving of 1 capsule, such as 25 mcg (1,000 IU) of vitamin D, 500 mcg of vitamin K1, 1,000 mcg of vitamin K2 and 45 mcg of vitamin K2. Its current label entered the NIH Dietary Supplement Label Database on December 13, 2022.
What is in Synergy K?
Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Vitamin Das Cholecalciferol, Vitamin D31,000 IU | 25 mcg (1,000 IU) | 125% | Higher than 59% of 14,175 products listing vitamin D (median 15 mcg). |
| Vitamin K1 | 500 mcg | 417% | Higher than 98% of 4,607 products listing vitamin K (median 80 mcg). |
| Vitamin K2as Menaquinone-4 | 1,000 mcg | ||
| Vitamin K2as Menaquinone-7 | 45 mcg |
Source: NIH ODS Dietary Supplement Label Database, label 278366 (entered December 13, 2022), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:
- Its 1,545 mcg of vitamin K (3 rows of the label added together) is higher than 98% of the 4,607 vitamin K products that print an amount; 74 list more.
The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
6 products list the very same ingredients; the nearest amounts come first.
- Liquid D and KEvolved Natural Solutions · off the market same ingredients
- Liquid D and KDouglas Laboratories · off the market same ingredients
- Liposomal K2 Orange FlavorVinco same ingredients
- D3 25 mcg (1,000 IU) K2 MK-7 450 mcg RaspberryNatural Grocers by Vitamin Cottage same ingredients
- PureHeart K2DPure Encapsulations same ingredients
- Vitamin D ComplexThorne FX · off the market same ingredients
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Recommendations: As a dietary supplement, take 1 capsule daily, with a meal, or as directed by a health professional.
- Warnings
- Warning: Not to be taken by pregnant or lactating women. Not for individuals taking blood thinning medications. If you have any health condition or are taking any medication, consult your health professional before use.
- Keep out of the reach of children.
- Use only if safety seal is intact.
- Allergens and what it does not contain
- Certified Gluten-Free by the Gluten-Free Certification Organization, www.gluten.org
- Gluten-free, Non-GMO & Hypoallergenic
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 278366.
What else is on the label?
Other ingredients: hypoallergenic Plant Fiber, Vegetarian Capsule.
How many labels does Synergy K have?
5 labels are on file under this name since November 21, 2018: other sizes, label designs and reformulations. The current one leads this page.
- Label 278366 (current) Entered December 13, 2022 · on the market · 60 capsules · UPC 7 66298 01568 2
- Label 219299 Entered May 22, 2020 · off the market October 29, 2018 · 120 capsules · UPC 7 66298 01567 5
- Label 219295 Entered May 22, 2020 · off the market April 17, 2019 · 60 capsules · UPC 7 66298 01568 2
- Label 202142 Entered May 28, 2019 · off the market March 22, 2022 · 60 capsules · UPC 7 66298 01568 2
- Label 183274 Entered November 21, 2018 · on the market · 120 capsules · UPC 7 66298 01567 5
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Pure Encapsulations (manufacturer), Sudbury, MA. All Pure Encapsulations products.