Vitamin D3 + K2

The Sunlight Pair

Vitamin D3 + K2

Vitamin D3 supports your bones and immune system, and K2 helps the calcium you absorb reach the places that need it.

$29.90 USD

In stock

Complimentary shipping on orders over $100. Most orders ship in 2 to 5 business days.

4.4 · Excellent on Trustpilot
Third-Party TestedcGMP FacilityFulfilled in USACaffeine FreeSugar Free

Why Vitamin D3 + K2 earns its place

Considered support, one honest habit at a time.

Calcium, well directed

Vitamin D3 supports healthy calcium absorption, and K2 as MK-7 supports the normal process that carries calcium toward bone. The pair is designed to work as a team.

Everyday immune support

Vitamin D plays a well-known role in normal immune function. A consistent daily capsule keeps this foundation covered year round, whatever the season.

Built for absorption

D3 and K2 absorb best when taken with food, and the formula includes BioPerine black pepper fruit extract, included to support nutrient absorption.

A quiet daily habit

One small veggie capsule, no taste, no prep. The kind of foundation that is easy to keep for the long haul.

One considered day

MorningMiddayEvening

Illustrative only: a picture of where a routine can sit across the day, not a measurement of anything.

How to use it

Three small decisions, then the routine runs itself.

1

The serving

1 Veggie Capsule daily

2

The timing

Morning or midday, with a full meal, since D3 and K2 absorb best when taken with food.

3

Worth knowing

Consistency matters more than timing. Keep the bottle where you eat breakfast and it becomes automatic.

Your first three months

What building the habit tends to look like, month by month.

Month 1

The first weeks are about the habit itself. These nutrients work quietly in the background, so expect nothing dramatic, just a routine that starts to feel automatic.

Month 2

The capsule stops being a decision. Your daily foundation is simply covered, on cloudy weeks and busy ones alike.

Month 3

This is long-haul territory. D3 and K2 have settled into how you look after your future self, one small capsule at a time.

Everyone settles in differently. These months describe the rhythm of a habit, not a promised result.

Ingredient information

Serving Size: 1 Veggie Capsule · Servings Per Container: 60
Supplement Facts
Serving size1 Veggie Capsule
Servings per container60
Suggested useTake one (1) capsule twice a day. For best results, take 20 to 30 minutes before a meal or as directed by your healthcare professional.
IngredientsVitamin D3 (Cholecalciferol) (125 mcg), Vitamin K2 (mk-7)(as Menaquinone) (100 mcg), Calcium (As Calcium Carbonate) (210 mg), BioPerine® (Black Pepper Fruit Extract) (5 mg). Other Ingredients: Microcrystalline Cellulose, Hypromellose (vegetable capsule).

Every ingredient is listed on the Supplement Facts panel printed on the bottle, and nothing is added the formula doesn't need.

Combines well with

Chosen to sit alongside Vitamin D3 + K2 in the same daily routine.

The Stacks

Part of The Radiance Set

Every Cobalt product is designed to belong to a larger routine. See the full stack and how the pieces fit together.

Explore the stacks
4.4 average on Trustpilot

Independent, site-wide reviews of The House of Cobalt, collected on Trustpilot.

Read the reviews on Trustpilot

Frequently asked

How should I take Vitamin D3 + K2?+
Take one veggie capsule daily. D3 and K2 absorb best with food, so take it with a proper meal, like breakfast with eggs or avocado, to help your body make the most of it.
Why combine D3 with K2 in one capsule?+
They play complementary roles. Vitamin D3 supports calcium absorption, and vitamin K2 as MK-7 supports the normal process that directs calcium toward bone. The formula also includes calcium carbonate and BioPerine black pepper extract right on the label.
Who should talk to a physician before starting?+
Anyone who is pregnant or nursing, takes prescription medications, or has been advised to keep their vitamin K intake steady, since vitamin K can interact with certain medications. When in doubt, bring the label to your next appointment.
How should I store it?+
Keep the bottle in a cool, dry place away from direct sunlight, with the lid closed tightly. A kitchen cabinet away from the stove works well.
What exactly is in each capsule?+
Each veggie capsule delivers Vitamin D3 (Cholecalciferol) 125 mcg, Vitamin K2 (MK-7) 100 mcg, Calcium (as Calcium Carbonate) 210 mg, and BioPerine black pepper fruit extract 5 mg, straight from the Supplement Facts panel. The capsule itself is hypromellose.
Is it third-party tested?+
Yes. Every product is made in a cGMP-certified, FDA-registered facility and independently tested for identity, purity, and potency.
How fast is shipping, and what's the return policy?+
Most orders ship within 2 to 5 business days, with complimentary shipping over $100. Unopened products can be returned within 30 days for a full refund.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before beginning any new supplement.
Everyday WellnessFoundational SupportClean FormulasTransparent DosingDaily RoutineThird-Party Tested

Why it earns its shelf

Why Vitamin D3 + K2, done properly.

  • A clinically studied form

    Every active in the house is used in its clinically studied form, the version that appears in the research, not a lookalike.

  • A transparent dose

    The label tells you exactly what is inside and how much. That is the whole point of a supplement you take every day.

  • Third-party tested

    Every batch is tested by an independent lab for identity, purity, and heavy metals before it reaches you.

Full transparency

What is inside, and why.

Nothing hidden and nothing to decode. The full supplement facts panel is printed on every label, with each ingredient and its exact amount listed in plain sight.

  • Serving size 1 Veggie Capsule
  • Servings per container 60
  • Proprietary blends None
  • Every amount printed on the label Yes

Our standards

Held to the house standard.

Third-party tested Independent labs verify identity, purity, and heavy metals on every batch.
Clinically studied forms The forms of each active that appear in the research, not lookalikes.
Transparent dosing Full amounts on the label. No proprietary blends, nothing hidden.

The first ninety days

How it settles in.

No countdowns and no promises about week three. Everyone's rhythm is their own. This is simply how a good daily routine tends to take shape.

  1. Weeks 1 to 2

    The routine takes hold.

    Take it at the same moment every day, next to something you already do. Coffee, teeth, lights out. The pairing does the remembering for you.

  2. Weeks 3 to 8

    It becomes automatic.

    Consistency is the whole game with daily supplements. Somewhere in here the bottle stops being a decision and starts being part of the scenery.

  3. Month 3 and beyond

    Part of the household.

    You reorder before you run out, and the routine keeps running quietly in the background. A steady daily habit, kept for the long game.

Curious about what is inside and why? Read the science or browse the ingredient library. Not sure this is your formula? Take the quiz.

Complete the routine

Pairs well with.

NAD+

NAD+

$56 USD

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before beginning any new supplement.