21st Century Vitamins and Supplements - For Adults, Women

B-100 Complex

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$6.93 $9.49 In stock

Category: Vitamin B

21ST Century B-100 Complex provides a blend of key B vitamins, including thiamin, riboflavin, niacin, vitamin B-6, folate, vitamin B-12, and biotin.

B vitamins are found naturally in a variety of foods, such as whole grains, leafy greens, beans, nuts, seeds, eggs, and meat.

For over 30 years, 21ST Century Vitamins has provided trusted vitamins and supplements by upholding the highest standards of quality in every product we offer. From sourcing the finest ingredients to rigorous testing and production processes, we ensure that every product meets our stringent quality benchmarks. We are here to support your wellness every step of the way.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Ellie G. ★★★★★

I’d been feeling run-down lately, but after a few weeks taking this B-complex, my energy is noticeably steadier without the jitters. I appreciate that it includes all the key B vitamins in one pill, especially biotin and B12. It’s easy to swallow and doesn’t leave any aftertaste.

Lucy ★★★★★

Honestly, I bought this for the biotin and B-12 to help with my energy and hair, and I've noticed my afternoon slump is way less brutal now. The pills are small and easy to swallow, which is a huge win for me.

Joseph ★★★★★

Got through a whole afternoon without that 3pm slump for the first time in weeks. The tablets are small and easy to swallow, which matters when you're taking one every morning.

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