CanPrev Synergy B Complex - Active B Vitamins & L-Theanine | 60 V-Caps
Visit the CanPrev Store| Brand | CanPrev |
| Serving | 1 capsule, 2 times daily |
| Licensed Natural Health Product | NPN 80026340 |
| Quality Standards | Made in Canada |
| Country | Made in Canada  |
About this item
- PROUDLY CANADIAN QUALITY: Produced in Canada in GMP-compliant, Health Canada-licensed facilities, ensuring high standards of quality, safety and trust for your daily supplement.
- COMPLETE B-COMPLEX FORMULA: A balanced blend of essential B vitamins, including L-5-MTHF activated folate, to help convert food into energy while supporting healthy skin, hair and nervous system function.
- 200MG L-THEANINE FOR RELAXATION: Each daily dose (2 capsules) provides 200 mg of L-theanine, helping to temporarily promote a sense of calm and support focus without drowsiness.
- BIOAVAILABLE FOLATE & BALANCED SUPPORT: Features L-5-MTHF, a highly bioavailable form of folate, supporting efficient nutrient utilization and energy metabolism for both men and women.
- NATURAL SPIRULINA: Incorporates spirulina, a nutrient-dense superfood and natural source of B vitamins, for extra nutritional support and vitality.
- VEGAN, GMO-FREE & GLUTEN-FREE: A vegan formula free from gluten, dairy, soy, wheat, yeast, sugar, corn, artificial colours, flavours, preservatives or animal products.
Product Description
Synergy B - Complete B-Complex with L-Theanine, Choline, Inositol & Spirulina
Synergy B is a complete vitamin B-complex delivering the full spectrum of B vitamins in their preferred forms, including L-5-MTHF activated folate and flush-free niacinamide, plus 200 mg of L-theanine daily for temporary mental relaxation without sedating effects - all blended with phytonutrient-rich spirulina. Licensed Natural Health Product. NPN 80026340. Licensed Natural Health Product NPN 80026340.
Synergy B est un complexe de vitamines B complet qui offre l'ensemble des vitamines B sous leurs formes privilégiées, dont le folate activé L-5-MTHF et la niacinamide sans rougissement, ainsi que 200 mg de L-théanine par jour pour favoriser temporairement la relaxation mentale sans effet sédatif - le tout combiné à la spiruline, riche en phytonutriments. Produit de santé naturel homologué. NPN 80026340.
Complete B-Complex, Optimised for Relaxation & Energy
12 Active Nutrients - Vegan, GMO-Free, Gluten-Free
Bioactive Folate, Flush-Free Niacin
Uses L-5-MTHF, the most bioavailable form of folate, and niacinamide, the flush-free form of vitamin B3 - so you get the full B-complex without the standard niacin flush.
200mg L-Theanine Daily, Plus Spirulina
Each daily dose (2 capsules) delivers 200 mg of L-theanine to help temporarily promote relaxation, along with phytonutrient-rich spirulina for extra natural B-vitamin support.
Advanced Ingredients, Superior Results
Twelve active ingredients working together - here's what's inside every capsule of CanPrev Synergy B.
L-Theanine
A non-protein amino acid found in green tea that is well absorbed and crosses the blood-brain barrier, studied for its role in temporarily promoting relaxation without drowsiness.
100 mg per capsule (derived from green tea)Vitamin B1 (thiamine HCl)
An essential coenzyme precursor for enzymes that convert glucose into cellular energy, with additional antioxidant properties.
50 mg per capsuleVitamin B2 (riboflavin-5-phosphate)
The pre-activated, coenzyme form of riboflavin, widely studied for its role in cellular energy production and migraine research.
50 mg per capsuleVitamin B3 (niacinamide)
The flush-free amide form of vitamin B3, a direct precursor to the NAD+ and NADPH coenzymes central to cellular energy metabolism and DNA repair.
50 mg per capsuleVitamin B5 (calcium D-pantothenate)
Supplies pantothenic acid, the essential precursor of coenzyme A, a cofactor required for energy production and lipid metabolism.
100 mg per capsuleVitamin B6 (pyridoxal-5-phosphate)
The already-active coenzyme form of vitamin B6, involved in amino acid and neurotransmitter metabolism and antioxidant defence pathways.
25 mg per capsule
Vitamin B7 (biotin)
A B vitamin cofactor for several carboxylase enzymes, commonly associated with hair, skin and nail health.
250 mcg per capsuleVitamin B9 (L-5-MTHF folate)
The bioactive, already-methylated form of folate the body can use directly, without the extra conversion step synthetic folic acid requires.
500 mcg per capsuleVitamin B12 (methylcobalamin)
An active coenzyme form of vitamin B12 that supports the nervous system, red blood cell formation and homocysteine metabolism.
500 mcg per capsuleCholine (choline bitartrate)
An essential nutrient and methyl donor that supports liver function, cell membrane structure and cholinergic signalling.
100 mg per capsuleInositol
A naturally occurring carbocyclic sugar involved in cell signalling that complements the B-complex's metabolic roles.
100 mg per capsuleSpirulina
A nutrient-dense blue-green algae studied for antioxidant, anti-inflammatory and gut-health-supporting properties, adding a natural source of B vitamins.
60 mg per capsule (Arthrospira platensis)CanPrev Synergy B Complex: Supplement Facts
Supplement Facts
- L-Theanine (derived from green tea) per capsule100 mg
- Vitamin B1 (thiamine HCl) per capsule50 mg
- Vitamin B2 (riboflavin-5-phosphate) per capsule50 mg
- Vitamin B3 (niacinamide) per capsule50 mg
- Vitamin B5 (calcium D-pantothenate) per capsule100 mg
- Vitamin B6 (pyridoxal-5-phosphate) per capsule25 mg
- Vitamin B7 (biotin) per capsule250 mcg
- Vitamin B9 (L-5-methyltetrahydrofolate) per capsule500 mcg
- Vitamin B12 (methylcobalamin) per capsule500 mcg
- Choline (choline bitartrate) per capsule100 mg
- Inositol per capsule100 mg
- Spirulina per capsule60 mg
Non-Medicinal Ingredients: Non-medicinal ingredients: Vegetable-grade magnesium stearate, vegetable capsule.
Recommended Use or Purpose: Helps to metabolize carbohydrates, fats and proteins. Helps to support liver function. Helps to temporarily promote relaxation.
Recommended Dose: Adults - take one (1) capsule, two (2) times per day with food, or as directed by a healthcare practitioner.
Cautions and Warnings: As with any natural health product, consult a health care practitioner on the use of this product. Consult a health care practitioner prior to use if you are pregnant or breastfeeding. Do not use if the safety seal is broken. Keep out of reach of children.
Actual product packaging and materials may contain more and different information than shown on our website. Always read labels, warnings and directions before using or consuming a product. This item is sold and shipped by Amazon.ca; purchases are completed on Amazon.
Fiche produit
- L-Théanine (dérivée du thé vert) par capsule100 mg
- Vitamine B1 (chlorhydrate de thiamine) par capsule50 mg
- Vitamine B2 (riboflavine-5-phosphate) par capsule50 mg
- Vitamine B3 (niacinamide) par capsule50 mg
- Vitamine B5 (D-pantothénate de calcium) par capsule100 mg
- Vitamine B6 (pyridoxal-5-phosphate) par capsule25 mg
- Vitamine B7 (biotine) par capsule250 mcg
- Vitamine B9 (L-5-méthyltétrahydrofolate) par capsule500 mcg
- Vitamine B12 (méthylcobalamine) par capsule500 mcg
- Choline (bitartrate de choline) par capsule100 mg
- Inositol par capsule100 mg
- Spiruline par capsule60 mg
Ingrédients non médicinaux : Ingrédients non médicinaux : Stéarate de magnésium de grade végétal, capsule végétale.
Usage ou fins recommandés : Aide à métaboliser les glucides, les lipides et les protéines. Aide à soutenir les fonctions du foie. Aide à promouvoir temporairement un état de relaxation.
Posologie recommandée : Adultes - prendre une (1) capsule, deux (2) fois par jour avec de la nourriture, ou selon les directives d'un praticien de santé.
Mises en garde : Comme pour tout produit de santé naturel, consultez un praticien de soins de santé au sujet de l'usage de ce produit. Consultez un praticien de soins de santé avant l'usage si vous êtes enceinte ou allaitante. Ne pas utiliser si le sceau de sécurité est brisé. Tenir hors de la portée des enfants.
NPN 80026340
Support energy metabolism, liver function and temporary relaxation with L-theanine
Get CanPrev Synergy B on Amazon.ca - fast, protected delivery.
Get it on Amazon.caWhy CanPrev Synergy B
A complete B-complex optimised with L-theanine, activated folate and spirulina - premium CanPrev quality.
12 active nutrients in one formula
All 8 B vitamins in their preferred forms, plus L-theanine, choline, inositol and spirulina - a complete, synergistic formula.
200mg L-theanine daily
Delivers 200 mg of L-theanine per day (2-capsule dose) to help temporarily promote relaxation without drowsiness.
Bioactive folate & flush-free niacin
Uses L-5-MTHF activated folate and niacinamide (flush-free vitamin B3) for a well-tolerated, complete B-complex.
Vegan, made in Canada
Vegan, GMO-free, gluten-free formula - a licensed Natural Health Product made in Canada. NPN 80026340.
Inside every capsule
12 active nutrients working together - the full B-complex plus L-theanine (100mg), choline, inositol and spirulina, optimised with L-5-MTHF activated folate and flush-free niacinamide.
How to use it
Take 1 capsule, 2 times per day
Adults: take one (1) capsule, two (2) times per day with food, or as directed by a healthcare professional.
Take it with food
Taking Synergy B with a meal is a comfortable way to fit the twice-daily dose into your routine.
Be consistent
For steady daily B-vitamin and L-theanine intake, take your doses at consistent times each day.
Consult a health care practitioner before use
Talk to a health care practitioner before use if you are pregnant, breastfeeding, or taking other medications or natural health products.
What the research says about the nutrients in Synergy B
Educational summaries of published research on the individual nutrients in this formula; not product-specific claims. CanPrev Synergy B's claim is the authorized use under NPN 80026340.
L-theanine drink reduced subjective stress and cortisol in a randomized crossover trial
In a double-blind, placebo-controlled crossover study in 34 healthy adults, an L-theanine-based drink significantly reduced the subjective stress response to a cognitive stressor within one hour, and lowered the salivary cortisol response three hours after dosing, compared with placebo.
Human RCTL-theanine combined with caffeine improved task-switching accuracy and alertness
In a randomized, double-blind study in 44 young adults, a combination of 97 mg L-theanine and 40 mg caffeine significantly improved accuracy on a demanding task-switching test and increased self-reported alertness compared with placebo, while reducing self-reported tiredness.
Human RCTReview: L-theanine is well absorbed, crosses the blood-brain barrier and may raise relaxation-linked alpha brain waves
A 2025 review of L-theanine's chemistry and biology describes good intestinal absorption and blood-brain barrier penetration, with some studies linking the amino acid to increased alpha brain-wave activity, reduced stress and anxiety, and improved sleep quality, while noting more rigorous human trials are still needed.
ReviewThiamine is a key cofactor for glucose metabolism and cellular energy production
A 2025 review describes thiamine (vitamin B1) as essential for enzymes that convert glucose into cellular energy, with additional antioxidant properties that help protect cells against oxidative stress, particularly relevant when dietary intake is inadequate.
ReviewThiamine diphosphate is the coenzyme form powering carbohydrate, amino acid and fatty-acid metabolism
A 2025 review of thiamine biochemistry identifies thiamine diphosphate as the metabolically active coenzyme form, serving several key enzymes involved in carbohydrate, amino acid, fatty-acid and overall energy metabolism.
ReviewThiamine is one of several B vitamins whose deficiency can disrupt nervous-system function
A 2024 review of vitamin-metabolism-related neurological conditions notes that impaired metabolism of thiamine, along with biotin, vitamin B6, vitamin B12 and folate, can contribute to nervous-system dysfunction, and that timely supplementation of the affected vitamin can meaningfully improve outcomes.
ReviewSystematic review: riboflavin significantly reduced migraine frequency in most comparisons
A 2025 systematic review of 17 studies on riboflavin (vitamin B2) for paediatric migraine prevention found that riboflavin, alone or combined with other natural ingredients, significantly reduced migraine frequency in 7 of 10 comparisons, migraine days in 3 of 4 studies, and analgesic use in 3 of 4 studies, with few side effects reported.
Systematic reviewDose-response meta-analysis: riboflavin reduced migraine attack frequency
A dose-response meta-analysis of 22 randomized controlled trials found that riboflavin supplementation was associated with a significant reduction in migraine attack frequency, among several dietary supplements evaluated for migraine prophylaxis.
Meta-analysisRiboflavin is a recommended nutraceutical for adult migraine prevention with minimal adverse events
A 2025 clinical review of headache nutraceuticals concludes that riboflavin (vitamin B2) can be recommended for migraine prevention in adults, citing a favorable safety profile with minimal adverse events, while noting pediatric evidence is less established.
ReviewNiacinamide replenishes the NAD+/NADPH pools central to cellular energy and DNA repair
A 2025 review describes nicotinamide (niacinamide), the amide form of vitamin B3, as a direct precursor to NAD+ and NADPH, supporting cellular metabolism, ATP production, mitochondrial respiration and DNA-repair processes, with an excellent safety profile even at high intakes.
ReviewNiacinamide supports the NAD+ salvage pathway underlying cellular energy metabolism and repair
A 2026 review explains that nicotinamide feeds the NAD+ salvage pathway, helping maintain intracellular NAD+ pools that support energy metabolism, DNA repair, mitochondrial function and redox balance.
ReviewNiacinamide participates in cellular metabolism and DNA repair via NAD+ replenishment
A 2023 review of niacinamide's biological functions describes its role as a precursor of NAD+, supporting cellular metabolism and DNA repair, with additional anti-inflammatory and immune-modulating properties reported across the literature reviewed.
ReviewVitamin B5 is the metabolic precursor of coenzyme A, essential for over a hundred reactions
A 2024 review describes coenzyme A (CoA), synthesized in the body from vitamin B5 (pantothenic acid), as an essential cofactor required for more than a hundred metabolic reactions, with CoA-boosting strategies via vitamin B5 and its derivatives being studied to help maintain healthy CoA levels.
ReviewThe vitamin B5/coenzyme A axis supports energy production, lipid metabolism and immune cell function
A 2023 review of the vitamin B5-coenzyme A axis describes CoA as a vital cofactor in energy production, lipid metabolism and the synthesis of essential molecules, noting that CoA availability also influences the activation and function of immune cells.
ReviewPantothenic acid's coenzyme A role supports cellular repair processes
A 2025 review of the B-complex vitamins notes that pantothenic acid (vitamin B5), through its role in coenzyme A synthesis, helps regulate fatty-acid metabolism and supports cellular repair processes throughout the body.
ReviewVitamin B6 supports antioxidant defenses via PLP-dependent metabolic pathways
A 2026 perspective article describes how supplemental vitamin B6, via its active pyridoxal-5-phosphate (PLP) form, elevates several antioxidant metabolites and activates the Nrf2 antioxidant-response signalling pathway, linking B6 status to the body's broader oxidative-stress defenses.
ReviewVitamin B6 in its active PLP form is required for normal dopamine-related signalling
A 2026 study found that pyridoxal-5-phosphate (the active form of vitamin B6) is required for maintaining normal dopamine-related enzyme activity and behavior in animal models, with vitamin B6 supplementation restoring dopaminergic function when this pathway was disrupted.
Preclinical studyB vitamins including B6 support energy metabolism, DNA maintenance and healthy immune function
A 2024 review of the B-complex vitamins in ageing describes pyridoxine (B6) and its fellow B vitamins as pivotal to energy metabolism, DNA maintenance and a healthy immune system, with inadequate B-vitamin levels linked to increased risk of age-related health issues.
ReviewL-5-MTHF produced a higher, faster plasma folate rise than folic acid in a human trial
In a randomized, double-blind crossover study in 24 adults, a single oral dose of the sodium salt of (6S)-5-methyltetrahydrofolate (L-5-MTHF) produced significantly higher peak plasma folate concentrations than an equivalent dose of folic acid, with folic acid alone causing a transient rise in unmetabolized folic acid not seen with L-5-MTHF.
Human RCTMethylcobalamin plus folic acid lowered homocysteine and helped cognitive outcomes in a targeted MCI subgroup
A post hoc analysis of a 24-month randomized trial in 279 patients with mild cognitive impairment found that daily methylcobalamin (vitamin B12) plus folic acid significantly lowered homocysteine, and was linked to better cognitive outcomes among patients who had greater frontal-lobe brain atrophy at baseline.
Human RCT (post hoc analysis)Case report: methylcobalamin injections resolved B12-deficiency nerve damage
A 2025 case report describes an 86-year-old patient with pernicious anemia and elevated homocysteine who developed spinal-cord degeneration from vitamin B12 deficiency; treatment with methylcobalamin injections improved the patient's blood-cell abnormalities and resolved the related spinal-cord MRI findings.
Case reportA 90-day randomized trial found biotin supplementation reduced hair fall and increased growth rate
In a randomized, double-blind, placebo-controlled 90-day trial in 97 participants, a standardized biotin-yielding botanical extract significantly reduced hair fall and increased hair growth rate compared with placebo, alongside improvements in nail texture and skin elasticity, with no adverse events reported.
Human RCTCholine is an essential nutrient supporting liver, brain and muscle function
A 2025 review describes choline as an essential nutrient and precursor for acetylcholine and phospholipids, involved in lipid and cholesterol transport and functioning as a methyl donor after conversion to betaine, with recognized roles supporting brain, liver and muscle function.
ReviewSpirulina supplementation is linked to antioxidant, anti-inflammatory and gut-health benefits
A 2024 review of Spirulina platensis supplementation describes reported antioxidant, immune-modulating and anti-inflammatory properties, along with improvements in gut microbiota composition and diversity observed across animal and human studies.
ReviewFrequently asked questions
What is CanPrev Synergy B and what does it do?
It's a complete B-complex supplement providing all 8 B vitamins in their preferred forms, plus L-theanine, choline, inositol and spirulina. It helps to metabolize carbohydrates, fats and proteins, helps to support liver function, and the L-theanine helps to temporarily promote relaxation.
How many capsules do I take?
Adults take one (1) capsule, two (2) times per day with food, or as directed by a health care professional.
How much L-theanine does it provide?
Each capsule contains 100 mg of L-theanine, so the twice-daily dose provides 200 mg of L-theanine per day.
Why L-5-MTHF instead of folic acid?
L-5-MTHF (L-5-methyltetrahydrofolate) is the bioactive, already-methylated form of folate that the body can use directly, without the extra conversion step that synthetic folic acid requires.
Why niacinamide instead of standard niacin?
Niacinamide is the flush-free form of vitamin B3, providing B3 activity without the skin-flushing sensation associated with some niacin forms.
How long does one bottle last?
At the label dose of 1 capsule 2 times daily, the 60-capsule bottle is a 30-day supply.
Is it vegan and allergen-friendly?
Yes - the capsules are vegan and free from gluten, dairy, soy, wheat, yeast, sugar, corn, and artificial colours, flavours or preservatives.
Where do I buy it?
Use the orange button on this page - it takes you to the CanPrev listing on Amazon.ca for secure checkout and fast delivery.
Support energy metabolism, liver function and temporary relaxation with L-theanine
Get CanPrev Synergy B on Amazon.ca - fast, protected delivery.
Get it on Amazon.caNatural Health Product NPN 80026340. Synergy B helps to metabolize carbohydrates, fats and proteins and helps to support liver function; the L-theanine in the formula helps to temporarily promote relaxation. The research summaries below concern individual nutrients generally and are educational - they are not claims about this finished product. Consult a health care practitioner prior to use. Read and follow the label. Results may vary.
Important information
Safety Information
Cautions and Warnings: As with any natural health product, consult a health care practitioner on the use of this product. Consult a health care practitioner prior to use if you are pregnant or breastfeeding. Do not use if the safety seal is broken. Keep out of reach of children.
Indications
Recommended Use or Purpose: Helps to metabolize carbohydrates, fats and proteins. Helps to support liver function. Helps to temporarily promote relaxation.
Ingredients
Medicinal Ingredients (per capsule): L-Theanine (derived from green tea) 100 mg, Vitamin B1 (thiamine HCl) 50 mg, Vitamin B2 (riboflavin-5-phosphate) 50 mg, Vitamin B3 (niacinamide) 50 mg, Vitamin B5 (calcium D-pantothenate) 100 mg, Vitamin B6 (pyridoxal-5-phosphate) 25 mg, Vitamin B7 (biotin) 250 mcg, Vitamin B9 (L-5-methyltetrahydrofolate) 500 mcg, Vitamin B12 (methylcobalamin) 500 mcg, Choline (choline bitartrate) 100 mg, Inositol 100 mg, Spirulina (Arthrospira platensis) 60 mg. Non-medicinal ingredients: Vegetable-grade magnesium stearate, vegetable capsule. Vegan. GMO-free. No binders, no fillers. No gluten, dairy, soy, wheat, yeast, sugar, corn, artificial colours, flavours, preservatives or animal products. NMIs are subject to change - always read and follow the label for accurate ingredients, cautions and allergen information.
Directions
Recommended Dose: Adults - take one (1) capsule, two (2) times per day with food, or as directed by a healthcare practitioner.
Legal Disclaimer
Actual product packaging and materials may contain more and different information than shown on our website. Always read labels, warnings and directions before using or consuming a product. This item is sold and shipped by Amazon.ca; purchases are completed on Amazon.