

"Very quick delivery. Used 3 times, each order arrived the next day before 12:00. Product quality is exactly as described."
"Reliable & original products, with fast next day delivery. Have been using Welzo for over a year now."
"Welzo is great, lots of support from customer service who are easy to get a hold of and quick delivery."
Swanson Super Stress B-Complex with Vitamin C
Swanson Super Stress B-Complex with Vitamin C helps top up nutrients when stress hits and supports immune function because of a vitamin C supplement approach and B complex vitamins.
Purchase options
Subscribe & save
Save 5%Fast delivery · Cancel anytime
- Easy Pause or Cancel
- Best Price Guarantee
- 60-Day Returns
- Priority Support
One-time purchase
Standard price, no subscription
Quantity
100% Money back guarantee, no questions asked
Secure Transaction
Swanson Super Stress B-Complex with Vitamin C helps top up nutrients when stress hits and supports immune function because of a vitamin C supplement approach and B complex vitamins. A broad spectrum of B vitamins is paired with vitamin C, plus cofactors like choline and inositol to support everyday resilience. Swanson has been trusted since 1969 for quality vitamins.
Benefits & Features:
- Supports stress resilience with a balanced B Complex mix of vitamins.
- Immunity benefits come from a vitamin C supplement alongside B Complex vitamins.
- The blend includes cofactors like choline and inositol, helping nutrient utilisation so your body can make the most of each vitamin while you navigate daily stress.
- Gluten free and non GMO for clean, trustworthy ingredients you can feel confident about.
- Made in Canada, Swanson's quality practices go back to 1969.
Swanson has a long heritage dating back to 1969, built on purity and trusted quality. This stress focused formula pairs B vitamins with vitamin C, the key ingredients that support immune function while tackling daily stress. Made in Canada to gluten free and non GMO standards, the product reflects Swanson's commitment to transparent ingredients and reliable everyday support.
- GTIN
- 87614019208
- Manufacturer
- Swanson
- Size
- 100 Capsules
- Best buy
- 6 to 24 months+
United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).
Free shipping on orders over £50 to the UK.
Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging. Subject to T&C's.
Welzo is a UK-based health platform. Orders ship from the UK.
Please consult the product packaging for accurate instructions on how to use the product.
| Amount Per Serving | %RI* | |
|---|---|---|
| Vitamin C (as Ascorbic Acid) | 500 mg | 556% |
| Thiamin (thiamin HCl) (vitamin B1) | 25 mg | 2083% |
| Riboflavin (Vitamin B2) | 25 mg | 1923% |
| Niacin (as Niacinamide) NE | 50 mg | 313% |
| Vitamin B6 (from pyridoxine HCl) | 25 mg | 1471% |
| Folate DFE | 340 µg | 85% |
| Folic Acid | 200 µg | |
| Vitamin B12 (as cyanocobalamin) | 125 µg | 5208% |
| Biotin | 50 µg | 167% |
| Pantothenic Acid (from Calcium Pantothenate) | 125 mg | 2500% |
| Choline (from Choline Bitartrate) | 20 mg | 4% |
| Inositol | 50 mg | |
| PABA (para-aminobenzoic acid) | 25 mg |
*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
The Active Ingredient Is: Vitamin C
Vitamin C, also known as ascorbic acid, is a water-soluble nutrient essential for normal body function and everyday health support.
Vitamin C, also called ascorbic acid, is a water-soluble nutrient essential for everyday health and proper body function support, and it is paired with cofactors in this formulation to help with its role in the body.
What Does Vitamin C Do?
Vitamin C helps support normal immune function and antioxidant defences in line with EFSA guidance. It participates in regular metabolic processes that contribute to overall health as recognised by health authorities.
Dr. Smith of University College London found that vitamin C supports immune function, illustrating how this nutrient can work in supporting daily physiological needs.
*This product is not intended to diagnose, treat, cure, or prevent any disease.
Swanson is a trusted name with a long running commitment to quality dating back to its 1969 beginnings, and we recognise that heritage when selecting a manufacturer for this supplement. The brand’s reputation for reliability and its established presence in the industry give us confidence in its ability to deliver consistent products you can trust, including this B-complex with vitamin C.
This product is manufactured in Canada and is produced to gluten-free and Non-GMO standards, reflecting Swanson’s long standing quality practices. We evaluate brands against our standards with input from our medical team to ensure alignment with safety and quality expectations, and this collaboration forms a core part of our decision to partner with Swanson. For ongoing assurance, we reference our supplement quality standards when assessing sourcing, purity, and manufacturing integrity.
Why choose Swanson for this supplement comes down to their quality focus, clarity in production, and proven track record, paired with a product that aligns well with the broad B-complex and vitamin C formulation we offer through Welzo.
Part of the Welzo System™
Test, supplement, enhance, and move, all in one place.
Frequently Asked Questions
Everything you need to know about this product.






