Vitamin D3 + K2 Supplement Manufacturer
Fat-soluble D3 and K2 in a stable lipid carrier — potency held through shelf life, delivered dose verified.
INGREDIENT SPOTLIGHT
Vitamin D3 K2 Supplement Manufacturing — Your Formula, Our Line
We manufacture Vitamin D3 K2 products on our partner lines in Zhengzhou, China. Bring a finished formula, a target active level or a rough concept, and we convert it into a specification we can run in bulk — oil suspension and micro-dose accuracy included.
- Oil-suspension softgels with the D3:K2 ratio you specify
- Softgel, dropper, spray and tablet formats
- Micro-dose accuracy verified lot by lot
Cholecalciferol and menaquinone-7 in an oil base — a combination product where the carrier matters as much as the actives.
12 Dosage Forms
Gummies, capsules, softgels, tablets, powders, liquids and solid beverages — all run in-house.
6 Production Lines
Two GMP facilities covering 14,000 sqm, 200+ employees, no subcontracted fill.
100+ Export Markets
cGMP, HACCP, ISO 22000 and HALAL certified. Documentation built for your market.
At a Glance
| Item | What We Run |
|---|---|
| Actives | Vitamin D3 (cholecalciferol), Vitamin K2 as MK-4 or MK-7 |
| Forms | Oil-based softgel, liquid drop, chewable, tablet, spray |
| Typical dose | D3 400–4,000 IU; K2 45–180 mcg per serving |
| Standardisation | MK-7 typically 1%–2% on a carrier; D3 in oil at fixed IU per drop |
| Key challenge | Fat-soluble stability, carrier selection, dose accuracy in liquids |
| Testing priority | Potency assay, uniformity of content, peroxide value in the oil, heavy metals |
| Certification | cGMP, HACCP, ISO 22000, HALAL |
| Documentation | COA with potency, allergen statement, nutrition panel support |
Why the Carrier Is Half the Product
Vitamin D3 and K2 are both fat-soluble, so the carrier oil is half the product. Three decisions decide whether it holds potency to expiry.
The Carrier
D3 and K2 are both fat-soluble, so they must travel in a lipid carrier whose oxidative stability decides shelf-life potency. A softgel with a poorly chosen oil loses potency to oxidation before expiry — the most common technical failure in the category, and the one we design around first.
Which K2
MK-4 and MK-7 are different molecules with different half-lives, dose ranges and costs. MK-7 supports a once-daily premium format; MK-4 needs higher doses and suits specific channels. Both are legitimate — the label and schedule depend on which you choose.
Delivered Dose
A softgel has a fixed fill weight that is easy to verify. A dropper or spray depends on the consumer delivering a consistent volume, so concentration needs margin and the pack must deliver reliably. We test the delivered dose from the finished pack, not the concentrate.
Formats We Run
Softgels
oil fill, 1–2 softgels per serving, the most common and most stable format
Liquid drops
10–1,000 ml with a calibrated dropper, highest dosing risk and needs delivered-dose testing
Chewables and gummies
4 g unit weight as standard, 400–2,000 IU D3 per piece, requires an emulsified system
Tablets
compressed with a spray-dried or coated D3/K2 premix, up to 4,000 IU
Oral spray
20–100 mg, delivers a fixed metered dose and suits a travel or convenience position
Solid beverage
5–30 g sachets for a fortified drink format
What We Check Before Release
Potency assay on the finished product at release and through shelf life
Potency assay on the finished product at release and through shelf life, not just on the raw material
Uniformity of content across the batch
Uniformity of content across the batch, which is critical at the very low actives load this product uses
Peroxide value and oxidative stability of the carrier oil
Peroxide value and oxidative stability of the carrier oil, since oxidation drives potency loss Delivered-dose testing from the finished pack for liquid, drop and spray formats
Heavy metals and microbiological limits …
Heavy metals and microbiological limits on the finished product Light and heat protection in the pack, because both actives are light-sensitive
Sourcing and Specification Notes
D3 in oil, D3 as a spray-dried powder an…
D3 in oil, D3 as a spray-dried powder and D3 beadlets are all available, with different stability profiles
MK-7 is our most common K2 and costs mat…
MK-7 is our most common K2 and costs materially more than MK-4 per unit of activity Carrier oil choice affects both stability and mouthfeel — we will show you the stability data for the oil we propose
Combination with calcium or magnesium is…
Combination with calcium or magnesium is common and changes the tablet or capsule count We will flag any market where the permitted D3 upper limit is below your intended dose before artwork
One Thing Buyers Get Wrong
Choosing the carrier oil on price. A cheaper oil with poorer oxidative stability costs more in the end, because the potency assay fails before the declared shelf life and the batch is written off or the claim is reduced. Assuming a dropper bottle delivers its labelled dose. Consumer-delivered volume varies, so a drop or spray format needs a concentration margin and delivered-dose testing. A softgel does not have this problem. Specifying a D3 dose without checking the market upper limit. Several markets cap the permitted daily D3 amount. We check the destination before the artwork is built, not after a listing is rejected.
Popular Formulas We Run
D3 and K2 are sold together almost by default — the dose ratio is the decision.
Bone + Heart
D3 2,000–5,000 IU with 100–200 mcg MK-7 in an oil-based softgel.
D3K2 + Magnesium
D3, K2 and magnesium together for a complete bone-and-mineral stack.
Immune Season
D3 and K2 with iodine for a winter-positioned daily capsule.
MOQ, Sampling & Lead Times
The commercial basics up front — minimums, sampling and production speed, the same commitment on every ingredient line.
Minimum Order Quantities
From 100 pieces per SKU on standard formats; 500 for custom packaging, 1,000 for a custom formula and 3,000 for full turnkey projects.
Quote & Sampling
Enquiries answered within 24 hours and quotations within 48. Samples take 2-3 days, with pilot batches from 1–5 kg before any bulk commitment.
Production & Dispatch
Standard bulk runs complete in 5–10 days, with packaged goods leaving the factory in 10–15 days after PO and artwork approval.
Where to Go Next
Health Focus
Frequently Asked Questions
What is the minimum order quantity for D3+K2 softgels?
MOQ is confirmed per format and specification at quotation stage. Potency, oil carrier, softgel size and packaging all affect the figure — send us the target and we will quote exactly.
Do you supply MK-7 or MK-4?
Both. MK-7 is the more common choice for a once-daily premium position because of its longer half-life, and it costs more per unit of activity than MK-4. We will price both so you can decide.
Which oil do you use as the carrier?
The carrier is chosen for oxidative stability and mouthfeel. We will show you the stability data for the oil we propose, because the carrier determines whether your potency claim survives to the expiry date.
Can you make a D3+K2 gummy?
Yes, at 400–2,000 IU D3 per 4 g piece, using an emulsified system. Fat-soluble actives in a gummy need the emulsion to be built properly or the potency distribution becomes uneven across the batch.
How do you verify the dose in a dropper bottle?
We test delivered dose from the finished pack rather than from the concentrate, and we build a concentration margin because consumer-delivered volume varies. This is the highest-risk format in the category.
How long does bulk production take?
We reply to enquiries within 24 hours and send a quotation within 48. Samples take 2-3 days, and standard bulk runs complete in 5–10 days with packaged goods leaving in 10–15 days.
DOSAGE FORMS
Which format should your Vitamin D3 K2 product take?
The same Vitamin D3 K2 blend can be delivered in several forms, and each one changes the fill weight, the taste profile and the tooling. We produce softgel and liquid dropper in-house, so the choice is driven by your market rather than by what a third party can supply.
- Forms we run for this ingredient: softgels, drops and gummies
- Pilot batch from 1–5 kg before any bulk commitment
- Fill weight, unit count and pack format set to your brief
Request a Vitamin D3 K2 Sample
Send the target actives, dosage form and pack size. We reply with a feasibility view, a sample plan and indicative pricing within 1–2 business days.
Start Your Project
Send the format, target active load and destination market. We confirm feasibility, quote it and prepare a sample — usually within 1–2 business days. Prefer to see the capability first? Read how our OEM programmes run, or request a free quote.