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21st Century

Vitamin D3, 250 mcg (10,000 IU), 110 Tablets

4.8 · 2215 reviews
1,284 ₽

Strong Bones & Immune Support Vitamin Supplement Gluten Free Non-GMO Guaranteed Quality - Laboratory Tested Trusted Quality For Over 30 Years Vitamin D3 is essential for absorption of calcium and supports bone, teeth and the immune system.

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Strong Bones & Immune Support Vitamin Supplement Gluten Free Non-GMO Guaranteed Quality - Laboratory Tested Trusted Quality For Over 30 Years Vitamin D3 is essential for absorption of calcium and supports bone, teeth and the immune system.

Customer reviews

5.0
verified purchase

I'm very happy with the dose level of 10,000 IU since I am so low in vitamin D and the fact that it has a 70-80 day supply makes it a great deal. Each pump gives out a decent amount of product and has a pleasant smell that smells like cinnamon to me. Overall, very happy!

12/13/2020
5.0
verified purchase
High Potency D3 – Strong Support for Deficiency

This 21st Century 10,000 IU D3 supplement is ideal if you’re dealing with a serious deficiency. The dosage is strong, and I felt a quick effect on energy and overall health. The tablet size is small, easy to take, and the package of 110 tablets offers a good quantity. Works best when taken with food for better absorption.

4/18/2026
5.0
verified purchase

supplements are commonly used to support overall health and address nutritional deficiencies. They may contain vitamins, minerals, herbal extracts, or other bioactive compounds that contribute to improved energy levels, immune function, or general well-being. When used appropriately, supplements can be beneficial, especially for individuals with increased nutritional needs or limited dietary intake. However, supplements should not replace a balanced diet, and excessive or unsupervised use may lead to adverse effects or interactions with medications. Therefore, it is important to use supplements responsibly and seek professional advice when necessary.

12/27/2025
5.0
verified purchase
good product and price

I love it so much I love it so much I love D3 is vital for bone health and may offer additional benefits, but individual responses to supplementation can vary. It's advisable to consult with a healthcare professional to determine if vitamin D3 supplementation is appropriate for you, especially considering the mixed user reviews and ongoing research into its broader health effects. Very high quality

11/14/2025
5.0
verified purchase
Прекрасно!

Thank you very much for this product, it suited me, I like the packaging, comfortable and stylish, I will order more of these products, and recommend them to all my friends and relatives! good!!

11/1/2025
5.0
verified purchase
최고!

Quality is super! The ingredients are great! Size arranged! What you need! Performance is felt! the product arranged, perfectly packed, the effect is definitely there! I will order more! Just as quickly delivered

10/31/2025
5.0
verified purchase
Good Immune booster

Vitamin D in higher dosages is helpful for keeping up my immune system. These tablets are super easy to swallow since they're very small.

10/22/2025
5.0
verified purchase

I was skeptical but the ingredient quality and balanced composition won me over, serving size is easy, and the frequency helped build endurance and overall health gradually

10/11/2025
5.0
verified purchase
immune system support

I ordered it for my parents for immune system support. I am very satisfied with the brand and the quality. Affordable price for 110 pcs. They are constantly using it. I will reorder it.

10/5/2025
5.0
verified purchase
High potency

Amazing vitamin D! This is one of my go-tos because of its high dose. Everyone living in Canada is vitamin D deficient!!! We don’t have enough strong summer days to not be. It’s super important to supplement during the winter! Also the more melanin, the more you need!!!

9/27/2025