Page 1 - Reviews - Twinlab, Stress B-Complex Caps, 250 Capsules - iHerb
Your preference has been updated for this session. To permanently change your account setting, go to My Account
As a reminder, you can update you preferred country or language anytime in My Account
> beauty2 heart-circle sports-fitness food-nutrition herbs-supplements pageview
Click to view our Accessibility Statement
}
Free Shipping over CA$39.00
checkoutarrow
Supplements
Sports
Bath
Beauty
Grocery
Home
Baby
Pets
Brands A-Z
Health Topics
Deals
Best Sellers
BOGO
New
Wellness Hub

Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorized distributors.Show more
4.7
Based on 432 ratings
330
72
20
6
4
Write a Review
What customers say
(427)
 
Rating

Rating

Languages
English
Languages
Show auto-translated reviews(219)
Show reviews with images only
Review images
English
Translated reviews
iHerb customer
Posted on May 13, 2024
Canada
6
0
0
0
Awesome!
Verified purchase
I feel like the 'stress' b complex works way better for me than any of the others. I like this brand because they work well and I cna notice the difference if I don't take them.
iHerb customer
Posted on Apr 10, 2024
Canada
1
0
0
0
energy
Verified purchase
great product and great service for ordering and delivering from iherb
iHerb customer
Posted on Nov 25, 2025
Philippines
10
0
0
0
Verified purchase
Increased energy levels or improved sleep. A supplement that works for one person might not work for another. There's no flavor and it's very easy to swallow, doesn't leave a bitter after taste. Doesn't seem to be any bad side effects - no upset stomach, no rashes or anything. Great benefits. Superb quality!
iHerb customer
Posted on Jul 21, 2025
Hong Kong
10
0
2
2
Twinlab stress b-complex
Verified purchase
I took this for few years n it’s good for lower the pressure on work, only it’s easy to change the colour if u take it out for long! I can hv good sleep in the night time!
NutritionCoach
Gold
Posted on Jul 12, 2024
346
0
2
104
A Really Effective Supplement for B Deficiency
Verified purchase
Twinlab Stress B-Complex Caps have been a great addition to my supplement routine. They've helped address my vitamin B deficiency. Stress is known to affect vitamin B levels, so this supplement is good insurance. One of the best parts is that there is no niacin flush, which I've experienced with other B-complex supplements. The quality ingredients make me feel confident in what I'm taking. TwinLab makes quality stuff.
iHerb customer
Posted on Sep 24, 2024
54
0
2
8
Great B Complex
Verified purchase
I have found Twinlab B vitamin supplements to be in superior forms of B vitamins that Twin Labs has used since long back ago. At least I experience a much better outcome using them than what others use for their formulations to get the benefits that are known using B vitamins it contains to be accepted With my present bottles, I don't seem to pick up the smell. Long ago, it was explained by the manufacturer to me that the special form of some of the B complex is special and sometimes will do that. I just can't do without this special B-Complex being the TwinLab ingredients.
SUPER BEN
Posted on Jul 24, 2017
310
0
0
327
Amazing Quality Twinlab B-Complex ! Read More..
Verified purchase
Great trusted brand with amazing value, b complex benefits such as Proper Bodily Functioning, Lower Cholesterol, Makes Healthy Growth and much more.. highly recommended! Hey, I've collected all the most interesting and useful information about the goods on my page !
iHerb customer
Posted on Feb 23, 2026
Singapore
29
0
0
1
First time purchasing
Verified purchase
Trying out this first time as I understand the benefits of this supplement. Bought based on the good reviews and the quality ingredients. However, it didn't work for me as I didn't feel much effect. The packaging, size and taste are acceptable. I will consider this product again for my future purchase.
iHerb customer
Posted on Apr 12, 2026
Bulgaria
16
12
0
0
Effective B-Complex Supplement
Verified purchase
Overall, this is a good, reliable B-complex supplement that gets the job done. However, a fair warning: it smells really bad when you open the bottle. Also, as is typical with high-dose B-vitamins, expect your urine to turn a bright neon yellow or green. If you can get past the harsh odor, it is a worthwhile purchase for the price.
iHerb customer
Silver
Posted on Mar 28, 2026
Singapore
235
3
0
12
B- complex
Verified purchase
A good source of energy. A must for me to take when I go for my exercise. It gives me all the energy I need. Especially those who have low metabolism it gives energy.