Jigsaw Health Activated B w/SRT - Sustained Release B-Complex, 120 Tablets

Key Ingredients & Active Forms

What distinguishes Activated B w/SRT is its exclusive use of active, methylated forms. Here’s a breakdown of each B vitamin and its bioavailable version:

• B1 (Thiamine) as Benfotiamine: A fat-soluble form of thiamine that may offer better absorption and retention than standard thiamine HCl.
• B2 (Riboflavin) as Riboflavin 5'-Phosphate (R-5-P): The active coenzyme form, ready for energy production without needing conversion.
• B3 (Niacin) as Inositol Hexanicotinate: A flush-free form of niacin that supports circulation and lipid metabolism without the uncomfortable flushing.
• B5 (Pantothenic Acid) as Calcium Pantothenate: The standard form, essential for coenzyme A synthesis and fatty acid metabolism.
• B6 (Pyridoxine) as Pyridoxal-5-Phosphate (P-5-P): The active form, particularly beneficial for individuals with MTHFR genetic variations who struggle to convert standard B6.
• B7 (Biotin) as d-Biotin: The naturally occurring form, critical for hair, skin, and nail health.
• B9 (Folate) as L-Methylfolate (Metafolin®): The active, methylated form of folate that can be used directly by the body, especially important for those with MTHFR mutations.
• B12 (Cobalamin) as Methylcobalamin: The active coenzyme form, superior to cyanocobalamin for neurological support and methylation.

Each ingredient is carefully dosed to meet or exceed daily values, with B12 at 500 mcg per serving. The sustained release matrix ensures that these active nutrients are delivered gradually, optimizing absorption and minimising waste.

Benefits of Activated B w/SRT

The benefits of a high-quality B-complex like Activated B w/SRT extend across multiple body systems. First and foremost, B vitamins are essential for energy metabolism. They help convert carbohydrates, fats, and proteins into usable ATP, the energy currency of your cells. With sustained release, you get a steady supply of energy throughout the day without the jitters or crash typical of synthetic stimulants.

Mental clarity and focus also improve. B vitamins—especially B6, B9, and B12—are critical for synthesising neurotransmitters like serotonin, dopamine, and norepinephrine. Users often report sharper concentration, better memory, and a more balanced mood. Additionally, the nervous system relies on B vitamins for maintaining myelin sheaths that protect nerve fibers. This support can translate into reduced feelings of stress and better overall nerve function.

Beyond energy and cognition, Activated B w/SRT supports cardiovascular health by helping regulate homocysteine levels—an amino acid linked to heart health when kept in balance. It also contributes to healthy red blood cell formation, which is vital for oxygen transport. Users appreciate that this formula offers comprehensive support in a single tablet, making it easy to incorporate into a daily wellness routine.

How to Choose the Right B-Complex

Not all B-complex supplements are created equal. When evaluating options, consider the form of each B vitamin. Cheap formulas often rely on folic acid and cyanocobalamin, which require conversion steps that some people cannot perform efficiently. Active forms like methylfolate and methylcobalamin are preferable, especially for individuals with MTHFR polymorphisms.

Delivery method also matters. Standard tablets can cause a rapid spike in B vitamin levels, leading to bright yellow urine as excess is excreted. Sustained release technology, like Jigsaw’s SRT, provides a steady supply over 6–8 hours, improving retention and reducing waste. If you have a sensitive stomach or liver concerns, active forms are gentler because they don’t require hepatic conversion.

Other factors include allergen information: Activated B w/SRT is gluten-free, vegetarian-friendly, and contains No artificial colours or preservatives. Always check for third-party testing or quality seals. Jigsaw Health is a reputable brand founded in 2005 with a focus on absorbable, effective supplements. Reading customer feedback can also provide insight into real-world experiences—many users mention improved energy levels and mental clarity without side effects.

How to Take Activated B w/SRT

For best results, take two tablets daily with food. The sustained release technology works optimally when tablets are swallowed whole—do not crush or chew. Taking B vitamins with a meal can enhance absorption and reduce the chance of mild nausea. Most people prefer to take them in the morning or early afternoon, as B vitamins can be invigorating and may interfere with sleep if taken too late.

Activated B w/SRT can be stacked with other supplements, but avoid taking it simultaneously with high-dose vitamin C or calcium supplements, as these may compete for absorption. Caffeine and alcohol can deplete B vitamins, so maintaining consistent intake is wise if you consume them. As with any supplement, consult your healthcare practitioner before starting a new regimen, especially if you are pregnant, nursing, or taking medications.

Side Effects & Interactions

B-complex supplements are generally well-tolerated, but some individuals may experience mild side effects. The most common is bright yellow urine, which is harmless and results from excess riboflavin being excreted—this is less pronounced with sustained release. Some people report mild gastrointestinal upset, headache, or skin flushing (though the flush-free niacin form minimises this).

High doses of B6 (pyridoxine) taken long-term have been linked to nerve toxicity, but the amount in Activated B w/SRT is within safe limits. Always stay within the recommended serving size. Interactions with medications are possible: B6 can reduce the effectiveness of certain epilepsy drugs like phenytoin, while B9 (folate) can mask a B12 deficiency in those with pernicious anemia. If you take blood thinners, chemotherapy drugs, or are on a restricted diet, discuss with your doctor before use.

SRT technology may also have implications for people with rapid gastrointestinal transit—though it’s designed to release steadily, individual absorption varies. Overall, Activated B w/SRT is considered gentle and effective, especially for those seeking active B vitamins.

What is B-Complex?

B-complex supplements deliver all eight essential B vitamins—B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B7 (biotin), B9 (folate), and B12 (cobalamin). These water-soluble vitamins work synergistically to convert food into cellular energy, support neurotransmitter function, and maintain healthy red blood cells. Unlike generic B-complex formulas that use inexpensive synthetic forms requiring liver conversion, Jigsaw Health’s Activated B w/SRT features the active, bioavailable versions of each B vitamin. This means your body can use them immediately, bypassing the need for enzymatic conversion. The result is more efficient absorption and a gentler experience for your liver.

Activated B w/SRT also incorporates a proprietary Sustained Release Technology (SRT), which metres out the B vitamins gradually over several hours. This steady release mimics how whole foods deliver nutrients and helps maintain consistent blood levels, avoiding the spikes and crashes often associated with immediate-release supplements. Whether you're combating daily fatigue, supporting mental clarity, or promoting nervous system health, Activated B w/SRT offers a science-backed approach to B-complex supplementation.

Frequently Asked Questions

Is this product suitable for vegans? Yes, the ingredients and excipients are vegan-friendly. The tablets are made without animal products.

Does it contain any caffeine or stimulants? No. The energy support comes solely from B vitamins, not added stimulants.

Why is the urine sometimes yellow? High-dose riboflavin (B2) is water-soluble and can cause a harmless bright yellow discolouration. With SRT, the effect is less pronounced.

Can I take this if I have an MTHFR mutation? Absolutely. This formula uses methylated folate and B12, which are ideal for individuals with MTHFR variants who cannot convert synthetic forms.

How long does one bottle last? With 120 tablets and a serving of two tablets per day, a bottle provides a 60-day supply.

This product is licensed by Health Canada under a Natural Product Number (NPN). Always read the label and follow directions for use.