Feb 19, 2025: We flubbed. The bottles and caps that we advertised as made in USA are actually, glass bottle: India, dropper cap: USA. We've since updated this page. See our blog post for further details.
Aug 5, 2025: We have noticed a rubbery smell coming from the dropper bulb that can permeate into the EVOOO. If you noticed this, please reach out to us for a free replacement bottle. Products shipped as of Aug. 4, 2025, have changed back to using the, previously out of stock, glass bottles after with a synthetic rubber (a thermoplastic elastomer called monprene) that should eliminate this issue. See post here.
Feb 17, 2025: It's best practice to shake the bottle before dispensing drops to ensure an even distribution of vitamin content with each drop. Remember to squeeze the dropper bulb while shaking.
We are currently shipping 1,000 IU/drop bottles with the following info (updated Feb 19, 2026):
(see 5,000 and 10,000 IU/drop after):
| Serial Numbers (s/n) & Date Range Sold |
Lab Results & Info |
|---|---|
| D0681 - D0816 Jan 28, 2026 - onward |
Vitamin D3 Powder:
|
| See all previous batch's COAs. | |
We are shipping 5,000 IU/drop Vitamin D3 in EVOOO with the following COA (updated Feb 19, 2026):
| Serial Numbers (s/n) & Date Range Sold |
Lab Results & Info |
|---|---|
|
K0001 - K0024 |
Vitamin D3 Powder:
|
| See all previous batch's COAs. | |
We are shipping 10,000 IU/drop Vitamin D3 in EVOOO with the following COA (updated Feb 19, 2026):
| Serial Numbers (s/n) & Date Range Sold |
Lab Results & Info |
|---|---|
|
E0060 - E0069 |
Vitamin D3 Powder:
|
| See all previous batch's COAs. | |
Notes (updated Oct 1, 2025):
- Please keep bottle in a cool & dark place and keep the lid tightly closed (don't over-hulk it though).
- Ice pack & insulation option: each time you select this option, we will add 1 ice pack. We can fit 3 bottles with 2 ice packs per insulated pouch. If you only need 1 ice pack, please don't select this option on your other products.
Specifications (updated Feb 6, 2025, changes underlined):
- Ingredients: Organic extra virgin olive oil (EVOOO) and vitamin D3 powder.
- USP grade (we are told this meets USP's specifications, however we are unable to verify this claim).
- you may see small particles of olives in solution, this is considered normal as part of the unfiltered milling process.
- Excipients: None.
- Vitamin D3 Source Material: Lanolin.
- County of Origin:
- Vitamin D3: See table above.
- EVOOO: See table above.
- Certificate of Analysis (COA) available online with every order (why the COA? | view COAs).
- Bottled in an amber glass jar for protection from UV light (why amber?)
- Bottle components country of origin: See tables above.
- Bottle dimensions w/ dropper: 1.2 x 4 in (31 x 102 mm) (diameter x height).
- Dropper lid & bulb materials: see specification tables above.
- Total weight: 2.42 oz (68.62 g).
- Notes on contents per bottle:
- each VD3 1,000 IU/drop bottle contains:
- 880,000 IU of Vitamin D3
- EVOOO
- 24.755 g of Terra Delyssa
- or 26.183 g of Kasandrinos
- each VD3 10,000 IU/drop bottle contains:
- 8,720,000 IU of Vitamin D3
- EVOOO
- 25.215 g of Terra Delyssa
- or 27.010 g of Kasandrinos
- How did you come up with these ratios?
- There's an extra "buffer" in each bottle to make sure we aren't short changing you:
- 2.3% buffer in the ~1,000 IU/drop bottle
- 1.5% buffer in the ~10,000 IU/drop bottle
- Why 2.3% in the ~1,000 IU/drop bottle? Our scale's resolution is in milligrams, and it's quite difficult to weigh anything under 1 mg.
- There's an extra "buffer" in each bottle to make sure we aren't short changing you:
- By our drop calculations, there are ~860 drops of solution in each bottle.
- However, drop weights and drop counts varies depending on several factors. Please see the section in our FAQ regarding average drop weights that we currently use. Please also see our post regarding drop counts (for VK2 MK-4) for more details.
- You may only be able to dispense ~850 drops using the dropper, with the remaining left as a film on the glass bottle and dropper (~10 drops). Use a mini scoop to scrape out the rest, or add a bit more EVOO and shake.
Disclosures (updated Dec 20, 2024, updates underlined):
- We use glass containers for storage and packaging, although caps and seals are usually made from silicone, plastic, rubber, or LDPE.
- We use amber colored glass or wrap clear glass to block UV rays from reaching contents.
- We store bulk powder sealed in the freezer.
- We store EVOO at room temperature (74 - 78°F or 23.3 - 25.6°C) away from sunlight.
- We steam sterilize all glass bottles, containers, caps, liners, and utensils before using them for storage or bottling using distilled water.
- We prioritize the material of
packing utensilsall containers and utensils that come into contact with product in this order: glass, ceramic, stainless steel, plastic, aluminum. - Bulk powder we receive is usually stored in an aluminum or plastic container. We immediately weigh and move it to a glass container.
- More information about our process here.
- Please also review our Terms and Conditions before placing an order.
Are we missing something that you'd like to see? Let us know!
30 Reviews Hide Reviews Show Reviews
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Best vitamin d I’ve used
This is the best vitamin d supplement I’ve used and I’ve tried a bunch! Recommending to all my friends.
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Excellente
Great vitamin D with pure tasting evoo! I highly recommend. As a practitioner I am always looking for the best quality supplements to recommend to others and I am glad Danny Roddy recommended them ??
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D3 in EVOO
Very nice D3 for both topical and oral.
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D3
Good
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D3
You can tell when you take it that is actually olive oil! Great product
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D3 and customer service
I am new to Lark, referred by my sister. Excellent products. And have now learned how caring and spot-on they are with customer service. Responsive and personal.
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Phenomenal Product
Best vitamin D I’ve ever tried. You can feel it’s purity
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Absolute Quality
I live in a state with very harsh winters and we get little to no sunlight in the winter, Vitamin D is an absolute must I’ve tried out many brands over the years and absolutely none compare to Lark Supply. Within a week of using this I felt less fatigued, my energy levels improved, and I was sleeping better. This is a necessity for the winter time and I’m happy to see a company use pure olive oil for their Vitamin D you can truly feel the quality difference in your body.
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EXCELLENT PRODUCT
I noticed the difference immediately. The other product I used caused stomach irritation. Without a doubt, this is something I recommend wholeheartedly. A fundamental tool for energetic health.