Vitamin D3 50,000 IU (1250 mcg) | Once Weekly Dose | 100 Capsules (100 Weeks, Approx. 2 Years Supply) | Easy to Swallow | Bone, Muscle & Immune Support | Non-GMO, Gluten Free | Made in USA

From the brand

Nivagen Pharmaceuticals, founded in 2009, is dedicated to delivering safe, effective, and high-quality medicines that enhance lives. With a growing base of over 1.25 million satisfied customers, we leverage advanced technology and years of expertise to ensure each product meets the highest standards. Crafted with precision, Nivagen products provide consistent reliability in every bottle, building faith with every dose.

Essential Qualities For You

Enhance Your Immunity

Soothing Skin Ease

Support Bone Health

Protect Your Skin

Is Discontinued By Manufacturer ‏ : ‎ No
Package Dimensions ‏ : ‎ 3.31 x 1.69 x 1.61 inches; 1.45 ounces
Item model number ‏ : ‎ MSXVQZM
Date First Available ‏ : ‎ July 19, 2014
Manufacturer ‏ : ‎ Nivagen
ASIN ‏ : ‎ B00LXNU684
Best Sellers Rank: #23,023 in Health & Household (See Top 100 in Health & Household) #234 in Vitamin D Supplements
Customer Reviews: 4.8 4.8 out of 5 stars 5,063 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

High Potency Weekly Dose – 50,000 IU Vitamin D3 (Cholecalciferol): Each capsule delivers 1250 mcg (50,000 IU) of bioavailable vitamin D3, designed as a once-weekly dose to support immune function, calcium absorption, strong bones, and healthy teeth.
Supports Muscle Strength & Neuromuscular Health: This high-dose formula aids in calcium metabolism to promote muscle function and neuromuscular health. Ideal for adults 40+ and anyone seeking consistent vitamin D3 support with fewer doses.
Sunshine Benefits Without UV Exposure: Provides the same active form of vitamin D your body makes from sunlight—without the UV rays. Great for those with limited sun exposure or dietary intake, helping maintain optimal vitamin D levels year-round.
Clean, Allergen-Free Formula – Easy to Swallow: Free from gluten, soy, dairy, eggs, nuts, shellfish, and fish. Made with clean ingredients in a smooth capsule that’s easy to swallow. Capsules are Halal and Kosher certified for broader dietary compatibility.
Made in the USA – FDA-Inspected, CGMP Certified Facility: Manufactured in a US-based facility that is FDA-inspected and follows Current Good Manufacturing Practices (CGMP). Quality-tested to ensure purity, potency, and safety in every batch.