---
product_id: 6167602
title: "21st Century B 100 Complex Prolonged Release Caplets, 60 Count (Pack of 1)"
brand: "21st century"
price: "$23.03"
currency: USD
in_stock: true
reviews_count: 8
category: "21st Century"
url: https://www.desertcart.us/products/6167602-21st-century-b-100-complex-prolonged-release-caplets-60-count
store_origin: US
region: United States of America
---

# Prolonged release for steady nutrient delivery Supports energy conversion from food Maintains nervous system health 21st Century B 100 Complex Prolonged Release Caplets, 60 Count (Pack of 1)

**Brand:** 21st century
**Price:** $23.03
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock your day with steady energy and nerve support!

## Quick Answers

- **What is this?** 21st Century B 100 Complex Prolonged Release Caplets, 60 Count (Pack of 1) by 21st century
- **How much does it cost?** $23.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/6167602-21st-century-b-100-complex-prolonged-release-caplets-60-count)

## Best For

- 21st century enthusiasts

## Why This Product

- Trusted 21st century brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Clean & Pure Formula:** Gluten-free, no sugar, salt, yeast, preservatives, or artificial additives—just pure wellness.
- • **Nerve Support Champion:** Clinically backed B1, B6, and B12 to help maintain and repair your nervous system.
- • **Sustained Energy Boost:** Slow-release B vitamins keep you powered all day without crashes.
- • **Easy-to-Swallow Caplets:** Designed for hassle-free daily intake, perfect for busy professionals on the go.
- • **Heat-Sensitive Packaging:** Ensures potency by requiring careful delivery—because quality matters.

## Overview

21st Century B 100 Complex Prolonged Release Caplets deliver a potent blend of B vitamins that slowly release over time to support energy metabolism and nervous system health. With a clean, allergen-free formula and easy-to-swallow tablets, this supplement is designed for adults seeking sustained vitality and nerve care. Note: product potency is preserved by avoiding heat exposure during delivery.

## Description

Prolonged release vitamins slowly release nutrients into the body over an extended period of time

Review: !!!!! Good B 100 Complex Cablets !!!!. - !!!! Good Product !!!! I Had Been Used This Product For A While And I Love It, Is Easy To Swallow, But The Best Is The Long Expiration Date Of It And The Value For The Money. Thank You For The Nice Delivered !!!!!.
Review: Do your homework. - When I bought these awhile back they were just an inexpensive B complex to me, like the 4 other different B complex bottles I had. Then I had a problem where my nerves were injured, and learned B1, B6, and B12 all helped. I started taking another brand, and nothing happened. I figured maybe they had been damaged by summer heat. I tried these next, and noticed a difference in a few hours. That seemed a bit odd so I compared all the bottles. The other bottles were crap and I immediately threw them out. Most were not time release, some almost no actual vitamin value, and the ones that did often had a serving size of multiple pills. These were BY FAR the best, and they are priced nicely, so I am here writing this review as I buy two more bottles.

## Features

- Helps convert food into energy and helps maintain the nervous system
- Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
- Prolonged release vitamins slowly release nutrients into the body over an extended period of time
- Gluten free
- No Sugar, Salt, Yeast, Preservatives, Artificial Flavors or Colors
- Allergen information: banana_free

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0007PQAPM |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #57,503 in Health & Household ( See Top 100 in Health & Household ) #155 in Vitamin B-Complex Supplements #3,079 in Sales & Deals |
| Brand | 21st Century |
| Brand Name | 21st Century |
| Color | No Color |
| Customer Reviews | 4.7 out of 5 stars 798 Reviews |
| Diet Type | Gluten Free |
| Dosage Form | Tablet |
| Flavor | Unflavored |
| Global Trade Identification Number | 00740985222829 |
| Item Dimensions | 2.38 x 1.75 x 3.75 inches |
| Item Form | Tablet |
| Item Weight | 0.23 Pounds |
| Manufacturer | 21st Century |
| Material Type Free | en_AE |
| Model Name | 21st Century B 100 Complex Prolonged Release Caplets, 60 Count (Pack of 1) |
| Number of Items | 1 |
| Primary Supplement Type | B-Complex |
| Product Benefits | Energy Management |
| Specific Uses For Product | Nerve |
| UPC | 740985222829 |
| Unit Count | 60 Count |

## Product Details

- **Brand:** 21st Century
- **Diet Type:** Gluten Free
- **Flavor:** Unflavored
- **Item Form:** Tablet
- **Primary Supplement Type:** B-Complex

## Images

![21st Century B 100 Complex Prolonged Release Caplets, 60 Count (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/61GHuJRuqmL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Are they easy to swallow? Are the capsules?**
A: I do use these. They are not capsules, but I don't have any problems swallowing them. My multivitamin is twice as big :)

**Q: Keep in refrigerator? i live in a very humid house, no a/c. different brand deteriorated before expiration date.**
A: It won't hurt it to be refrigerated

## Customer Reviews

### ⭐⭐⭐⭐⭐ !!!!! Good B 100 Complex Cablets !!!!.
*by E***A on August 21, 2025*

!!!! Good Product !!!! I Had Been Used This Product For A While And I Love It, Is Easy To Swallow, But The Best Is The Long Expiration Date Of It And The Value For The Money. Thank You For The Nice Delivered !!!!!.

### ⭐⭐⭐⭐⭐ Do your homework.
*by J***C on February 19, 2022*

When I bought these awhile back they were just an inexpensive B complex to me, like the 4 other different B complex bottles I had. Then I had a problem where my nerves were injured, and learned B1, B6, and B12 all helped. I started taking another brand, and nothing happened. I figured maybe they had been damaged by summer heat. I tried these next, and noticed a difference in a few hours. That seemed a bit odd so I compared all the bottles. The other bottles were crap and I immediately threw them out. Most were not time release, some almost no actual vitamin value, and the ones that did often had a serving size of multiple pills. These were BY FAR the best, and they are priced nicely, so I am here writing this review as I buy two more bottles.

### ⭐⭐⭐⭐⭐ century great supplement I recommend it 100%
*by L***S on August 27, 2025*

A very good B complex, it keeps me energized and helps with my joints and nerves. I love this brand. I buy it often.

## Frequently Bought Together

- 21st Century B 100 Complex Prolonged Release Caplets, 60 Count (Pack of 1)
- 21st Century Slow Release Iron Tablets, 60 Count
- 21st Century Zinc 50 Mg (Chelated) Tablets, 110 Count (Pack of 1)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/6167602-21st-century-b-100-complex-prolonged-release-caplets-60-count](https://www.desertcart.us/products/6167602-21st-century-b-100-complex-prolonged-release-caplets-60-count)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-07*