B-50 Complex, Prolonged Release, 60 Tablets

Customer Ratings & Reviews

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4.7

Based on 8,781 ratings

7,087

1,174

391

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What customers say

Customers highly recommend the 21st Century B-50 Complex Prolonged Release for its quality and effectiveness. Many users report noticeable improvements in energy levels, mood, and overall vitality. The prolonged-release formula is particularly appreciated for providing sustained benefits throughout the day. The product is praised for its high-quality ingredients, convenient packaging, and affordability. Some users noted a change in urine color but did not consider it a significant issue. The tablets are easy to swallow with a mild taste, making them user-friendly. Overall, customers are satisfied with the brand's commitment to quality and plan to repurchase.

Review highlights

Top positive review

iHerbCustomer

Posted on Jan 11, 2022

Bosnia and Herzegovina

134

Worth every penny!!

I bought it for my sister. The size and amount is just right, as you should take a break after a 2-3 months consummation and then start again in 2-3 months. She highly recommends it. According to her she noticed new hair growth after around 2 weeks of consummation. Also her nails as well as skin is looking much better. And lastly, it is good for the nerves, one doesn't feels as "stiff" as before. It's a top product, according to her, highly recommended.

(8,653)

HealthyisWealthy

Silver

Posted on Aug 29, 2025

Canada

217

Seemed to work, no upset stomach

Verified purchase

I’ve used a few products from 21st Century and they’re usually very affordable with straightforward quality ingredients. The size of these is pretty small, they’re circle shaped and since it’s time released it will have your pee looking bright yellow for about 24 hours so don’t be scared lol. These have tremendous amounts of folic acid and other ingredients that will give you energy can be beneficial for your metabolism. I’ll be getting more!

iHerbCustomer

Gold

Posted on Aug 6, 2025

Philippines

1,732

Verified purchase

This Product is really nice because of the quality of it and the good benefit for our body.!! Good Job Iherb. fAST shipment. Door to door. Job well done. I need it right away. The quality of the ingredients is good! i like it because its all natural and not having stomach ache. Thank you iHerb :)

iHerbCustomer

Silver

Posted on Sep 24, 2025

Israel

197

Verified purchase

very good quality and ingredients, the potency of 50 mg is very good. i take it every morning for good energy, i notice the effect during the day.

iHerbCustomer

Posted on Jun 11, 2025

Spain

My go through product

Verified purchase

Those vitamins I’ve been taking for 10 years. Now and then we’ve been trying another brands. However, those prolonged vitamins they ingredients and quality are very decent. Effect is very refillable. I feel like my metabolize is high nervous system and energy level is great. I highly recommend those B 50 vitamins.

Erica

Posted on Sep 16, 2024

for energy

Verified purchase

I’ve been taking this B vitamin complex supplement for a few weeks, and I’m thrilled with the results. Since starting the supplement, I’ve noticed a significant boost in my energy levels and mental clarity. It has also helped me feel more balanced and focused throughout the day. The capsules are easy to swallow and don’t have any aftertaste. I appreciate the comprehensive blend of B vitamins, which seems to cover all bases for my nutritional needs. This supplement has become an essential part of my daily routine, and I feel more vibrant and motivated. I highly recommend it to anyone looking to improve their energy, mood, and overall well-being!

Rasi

Posted on Feb 7, 2026

United Arab Emirates

Verified purchase

I have been taking this B-Complex regularly and find it helpful for overall health and energy. It’s a good supplement and easy to include in the daily routine.

iHerbCustomer

Silver

Posted on Jan 30, 2026

China

188

Good

Verified purchase

Very good b complex. It contains folic acid. Small size of pills very easy to take. Good quality of ingredients. I like the effect. I take together with magnesium so it has good effect on my nervous system

iHerb customer

Posted on Nov 14, 2025

Israel

great

Verified purchase

great quality and ingredients. medium size tablet. potent vitamin b complex with prolonged release. it consists of 50mg each of the vitamin b. good source of energy and folic acid. it also has great effect on the nervous system and metabolism. it also helps with niacin flush. small and concise packaging. taste is okay.

iHerb customer

Posted on Aug 30, 2025

Thailand

Niceeee

Verified purchase

Nice quality of vitamin B complex, the size is appropriate, the package came with good condition, the price is reasonable It’s my first time ordering vitamin from this platform and it’s believable and was a good choice for ordering here The package came so fast just with 4 days from the date I ordered it, so recommend to everyone

Miffyrules

Silver

Posted on Aug 12, 2025

Australia

237

great

Verified purchase

great for energy levels and immunity, I feel less tired

Customer Ratings & Reviews

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