Hi-Tech Pharmaceuticals Vitamin D3 delivers 2,000 IU of cholecalciferol (D3) per tablet — the most bioavailable form of Vitamin D — through Cyclosome® Technology for significantly improved absorption compared to standard Vitamin D tablets. One tablet covers the baseline daily D3 needs for most healthy adults, in a formula built around the same liposomal delivery system Hi-Tech uses across their entire wellness line.†
Hi-Tech Vitamin D3 — What's Inside Each Tablet
- Vitamin D3 (as Cholecalciferol) — 2,000 IU per tablet
- Cyclosome® Technology — phosphatidylcholine and HPBCD liposomal delivery, bypasses first-pass liver metabolism for improved absorption
- 100 tablets per container
- Non-GMO soy lecithin base
Frequently Asked Questions About Vitamin D3
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What is the difference between Vitamin D2 and Vitamin D3?
Vitamin D comes in two supplemental forms — D2 (ergocalciferol) and D3 (cholecalciferol). Research consistently shows D3 is significantly more effective at raising and maintaining blood levels of 25(OH)D — the form your body stores and uses. D3 is also the form your skin naturally produces in response to sunlight. Hi-Tech uses cholecalciferol — the correct form — in their Vitamin D3 formula.† -
Why are so many people deficient in Vitamin D?
Vitamin D is unique among vitamins because the primary source is sun exposure rather than diet. When UVB rays hit the skin they trigger D3 synthesis — but this requires meaningful outdoor exposure with skin uncovered. People who work indoors during daylight hours, live in northern latitudes, use sunscreen consistently, or have darker skin tones produce significantly less D3 through sun exposure. Supplementation is the most reliable way to maintain adequate levels year-round.† -
Why does Cyclosome Technology matter for Vitamin D?
Vitamin D3 is a fat-soluble compound — it requires dietary fat for proper absorption through standard oral delivery. Cyclosome® Technology encapsulates D3 in a phospholipid liposomal complex that bypasses this dependency and routes the compound through the intestinal lymphatic system directly. The result is more consistent absorption regardless of whether the tablet is taken with food or on an empty stomach.† -
Is 2,000 IU of Vitamin D3 the right dose?
2,000 IU is a well-established daily maintenance dose for healthy adults. The Tolerable Upper Intake Level set by the National Academy of Medicine is 4,000 IU per day for adults — making 2,000 IU a safe and conservative daily baseline. Individuals with confirmed deficiency or specific health goals may benefit from higher doses under physician supervision. If you are also taking the Revive MD Essential Vitamins Pack, note that it already contains Vitamin D3 — consult the label before doubling up.† -
Can I take Vitamin D3 with other supplements?
Yes — with one important note. Vitamin D3 and Vitamin K2 work synergistically. D3 promotes calcium absorption and K2 directs that calcium to bones and away from arteries — many health practitioners recommend taking both together. Hi-Tech's Vitamin D3 pairs well with their Vitamin K2 or the Revive MD Essential Vitamins Pack which includes both. Do not combine with standalone D3 supplements if you are already taking a multivitamin or pack that contains D3.†
How to Take Hi-Tech Vitamin D3
Take 1 tablet one to two times daily, preferably with food. Do not exceed the recommended dose. Store at room temperature in a cool dry place.
Why Buy Supplements at Get Yok'd
- Real-time inventory across all five Southern California stores
- Available in Burbank, Glendale, Glendale Galleria, Pasadena, and North Hollywood
- Authorized retailer of Hi-Tech Pharmaceuticals
- One of the best loyalty programs in the supplement industry — earn rewards on every purchase
- Owned and operated by fitness enthusiasts who actually use what we sell
Who Should Not Take Hi-Tech Vitamin D3
- Consult a physician before use if pregnant, nursing, or have a medical condition
- Do not combine with other Vitamin D3 supplements without physician guidance — excessive Vitamin D intake can cause toxicity
- Contains soy (from Cyclosome Technology phospholipids)
- Discontinue use and consult your physician if any adverse reaction occurs
- Keep out of reach of children
†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.