Description
The BCAA with Electrolytes Built for Athletes Who Go Longer
Most BCAA powders give you three amino acids and a flavour. SCN™ Endurance i-BCAA 6:1:1 gives you a complete intra-training system: pharmaceutical-grade Ajipure® BCAAs, free-acid HMB, the two ergogenic “endurance salts”, a full electrolyte and mineral mix, a performance mix and fast carbohydrates — all in one scoop. One formula. Six jobs. Zero compromise.
2,500 mg Endurance Salts
Electrolytes with Phosphorus
Ajipure® by Ajinomoto®
Vegan-fermented aminos
Sweet Peach
Endurance athletes
Runners, cyclists, triathletes, swimmers, rowers
Protect muscle through hours of work, buffer acid in the final kilometres, replace what you sweat out and keep glucose topped up — without carrying four different products.
Strength, CrossFit & team sports
Interval, repeated-sprint and high-intensity training
Sodium bicarbonate and sodium phosphate are the two best-studied ergogenic salts for repeated high-intensity efforts. Combined with BCAAs and HMB, you train harder, longer, and recover faster.
Active wellbeing
Training hard after 35, 45, 55 and beyond
Leucine-rich BCAAs and HMB support muscle maintenance when protein synthesis naturally becomes less efficient. Electrolytes, magnesium, potassium and vitamin B6 fight tiredness and fatigue.
Why Endurance i-BCAA 6:1:1 is the only BCAA with electrolytes you need
- Anti-catabolic protection. 8,800 mg of Ajipure® BCAA 6:1:1 plus free-acid HMB to reduce exercise-induced muscle breakdown during long, hard sessions.
- Faster recovery. Leucine triggers muscle protein synthesis; HMB slows protein breakdown. Together they shorten the gap between sessions.
- Longer endurance. Sodium bicarbonate and sodium phosphate tribasic — the endurance salts — buffer acid and support oxygen delivery so fatigue arrives later.
- Proper hydration. Calcium phosphate, magnesium phosphate and potassium citrate replace the electrolytes you lose in sweat and support normal muscle function.
- More energy, less fatigue. Vitamin B6 contributes to normal energy-yielding metabolism and to the reduction of tiredness and fatigue. Dextrose and fructose refuel working muscle.
- Higher intensity. Ornithine alpha-ketoglutarate, inositol and D-aspartic acid round out a performance mix built for the final rep, the last climb, the closing kilometre.
What is Endurance i-BCAA 6:1:1?
Endurance i-BCAA 6:1:1 is SCN™’s flagship intra-training multi-formula: an instantized BCAA with electrolytes, endurance salts, HMB, inositol, ornithine AKG, D-aspartic acid, vitamin B6 and three fast carbohydrates. It was designed for one purpose — to let a serious athlete train faster, longer and harder with a single scoop instead of a shelf full of tubs.
Why this formula is different
Pharmaceutical-grade BCAA powder is expensive. That is why most brands quietly use cheap, slow-dissolving, poorly absorbed BCAA raw materials. SCN™ does the opposite. We use Ajipure® amino acids from Ajinomoto® — the global reference for purity and consistency — in a 6:1:1 leucine-dominant ratio, instantized for fast dissolution and absorption. Then we surround them with everything an endurance athlete actually needs during training: buffers, electrolytes, phosphorus, fuel and a bioavailability enhancer. Nobody else puts all of this in one formula at these doses.
Inside the formula: six systems, one scoop
Every ingredient, written out in full, with the job it does. Doses are per serving (4 scoops).
1 · Anti-catabolic & Recovery Mix
8,800 mg
- Ajipure® BCAA 6:1:1 — L-Leucine, L-Isoleucine, L-Valine (instantized). Leucine is the “switch” amino acid: it activates mTOR and drives muscle protein synthesis, which is why we load the ratio 6:1:1 in its favour. Isoleucine supports glucose uptake into muscle; valine competes with tryptophan at the blood–brain barrier, a mechanism linked to delayed central fatigue. Ajipure® aminos are fermented from plant carbohydrates — vegetarian and vegan, with no animal-derived raw materials.
- Beta-hydroxy-beta-methylbutyrate free acid (HMB-FA). The active leucine metabolite in its fastest-absorbing free-acid form (peak blood levels in roughly 30 minutes versus 1–2 hours for calcium HMB). Gram for gram, HMB is more potent than leucine at slowing muscle protein breakdown — the anti-catabolic half of the equation.
2 · Ergogenic Salts Mix — the Endurance Salts
2,500 mg
- Sodium Bicarbonate. The most researched extracellular buffer in sport. High-intensity work drives hydrogen ions into the blood; bicarbonate neutralises them, helping muscle keep contracting at the point where it would normally shut down. Best evidence: efforts of 1–7 minutes and repeated high-intensity intervals — exactly the stretches of a race or workout that decide the result.
- Sodium Phosphate Tribasic. Phosphate is the “P” in ATP and a building block of 2,3-DPG, the molecule that helps red blood cells release oxygen into working muscle. Sodium phosphate loading has repeatedly been shown to raise maximal oxygen uptake and improve time-trial performance in trained runners and cyclists.
3 · Electrolytes & Minerals Mix — with Phosphorus
650 mg
- Calcium Phosphate. Calcium contributes to normal muscle function and normal energy-yielding metabolism; phosphorus contributes to normal energy-yielding metabolism. Every muscle contraction depends on calcium release.
- Magnesium Phosphate. Magnesium contributes to electrolyte balance, normal muscle function, normal protein synthesis and the reduction of tiredness and fatigue — and sweat losses during long sessions are significant.
- Potassium Citrate. Potassium contributes to normal muscle function and the maintenance of normal blood pressure. Citrate adds a second, gentler alkaline buffer alongside bicarbonate.
Together with the two sodium salts, this gives you the four electrolytes that matter in sweat — sodium, potassium, magnesium and calcium — plus phosphorus, which most electrolyte drinks ignore completely.
4 · Performance & Endurance Enhancing Mix
2,000 mg
- Inositol (myo-inositol). A vitamin-like compound found in every cell membrane and a key player in insulin signalling and cellular glucose handling — the pathways that move fuel into working muscle. Dense in muscle, heart and brain tissue.
- Ornithine alpha-ketoglutarate (OKG). Ornithine is central to the urea cycle, the body’s route for clearing the ammonia produced when muscle burns protein during long efforts — a recognised contributor to fatigue. Alpha-ketoglutarate is a Krebs-cycle intermediate feeding energy production directly.
- D-Aspartic Acid. An amino acid naturally concentrated in neuroendocrine tissue, included to complete the performance mix for athletes training at high intensity.
- Vitamin B6 (pyridoxine). Contributes to normal protein and glycogen metabolism, normal energy-yielding metabolism, normal red blood cell formation and the reduction of tiredness and fatigue — the vitamin that makes amino acids usable.
5 · Glucose Support Mix
5,500 mg
- Dextrose. Glucose in its fastest form — absorbed via the SGLT1 transporter, straight into the bloodstream and into working muscle.
- Fructose. Absorbed via a separate transporter (GLUT5). Using two sugars with two transporters is the same multiple-transportable-carbohydrate principle used in elite endurance fuelling: more total carbohydrate absorbed per hour, less gut distress.
- Maltodextrin. A low-osmolality glucose polymer that empties from the stomach quickly and smooths the carbohydrate release.
Carbohydrates contribute to the maintenance of endurance performance during prolonged exercise, and the small dose here also drives the insulin response that helps shuttle amino acids and electrolytes into muscle. It is a performance dose, not a sugar bomb.
6 · Bioavailability Enhancing Thermonutrient
15 mg
- BioPerine® — Piper nigrum (black pepper) patented extract, standardised to a minimum of 95 % piperine. The clinically studied bioavailability enhancer from Sabinsa. Piperine increases the absorption of co-ingested nutrients by supporting gut blood flow and active nutrient transport. Published work shows markedly increased uptake of vitamin B6, beta-carotene, selenium and coenzyme Q10 when combined with BioPerine®. In this formula it makes every other ingredient work harder.
Ajipure® — the king of amino acids
Ajinomoto Co., Inc. has spent more than a century developing the technology to manufacture and purify pharmaceutical-grade amino acids, and is the world’s leading supplier to the medical, pharmaceutical, nutraceutical and sports-nutrition industries. Ajipure® amino acids are produced by fermentation from natural vegetable carbohydrates — never from animal raw materials, never from hair or feathers — and purified to a standard that delivers faster dissolution, quicker absorption and batch-to-batch consistency you can feel in training. When you pay for BCAAs, this is what you should be paying for.
Why 6:1:1 and not 2:1:1?
The classic 2:1:1 ratio mirrors the proportions in muscle protein. But the research on muscle protein synthesis is overwhelmingly a leucine story: leucine is the amino acid that flips the mTOR switch, and 5 g of leucine does more for synthesis than 5 g of a mixed BCAA blend. A 6:1:1 ratio delivers a leucine dose that reliably reaches that threshold while still providing isoleucine for glucose uptake and valine against central fatigue — and we pair it with free-acid HMB so that while leucine builds, HMB protects. It is the most complete anti-catabolic pairing you can drink during a session.
How to use Endurance i-BCAA 6:1:1
Stack it for maximum anti-catabolic and recovery results: combine with intrAMINO X12 (full-spectrum EAA/BCAA capsules) and Anti-Catabolic Activator (leucine + HMB + magnesium) for long race days and heavy training blocks. For sessions over 90 minutes, add Carbo⁶-Lytes¹¹ for additional carbohydrate.
Nutrition information
Each serving (4 scoops) provides:
| Active mix | Ingredients | Per serving |
|---|---|---|
| Anti-catabolic & Recovery Mix | Ajipure® BCAA 6:1:1 (L-Leucine, L-Isoleucine, L-Valine), HMB Free Acid | 8,800 mg |
| Ergogenic Salts Mix | Sodium Bicarbonate, Sodium Phosphate Tribasic | 2,500 mg |
| Electrolytes & Minerals Mix | Calcium Phosphate, Magnesium Phosphate, Potassium Citrate | 650 mg |
| Performance & Endurance Enhancing Mix | Inositol, Ornithine Alpha-Ketoglutarate, D-Aspartic Acid, Vitamin B6 | 2,000 mg |
| Glucose Support Mix | Fructose, Dextrose | 5,500 mg |
| Bioavailability Enhancing Thermonutrient | BioPerine® (Piper nigrum patented extract, standardised to min. 95 % piperine) | 15 mg |
Ingredients: Ajipure® BCAAs (L-Leucine, L-Isoleucine, L-Valine), beta-hydroxy-beta-methylbutyrate free acid, sodium bicarbonate, sodium phosphate tribasic, calcium phosphate, magnesium phosphate, potassium citrate, inositol, ornithine alpha-ketoglutarate, D-aspartic acid, vitamin B6 (pyridoxine), fructose, dextrose, maltodextrin, BioPerine® (Piper nigrum extract). Flavouring: peach flavour powder. Sweetener: sucralose.
Product information: 400 g · 100 × 4 g scoops · sweet peach flavour · vegetarian/vegan-fermented amino acids · no preservatives.
Faster. Longer. Harder. In one scoop.
Stop buying BCAAs, electrolytes, bicarbonate, HMB and carbs separately. SCN™ Endurance i-BCAA 6:1:1 is the only BCAA with electrolytes and endurance salts formulated to carry a serious athlete from the first warm-up kilometre to the final sprint — with the purity of Ajipure® behind every dose.
Choose your Multi-Buy option above and save up to 25 % — or buy 6 and get 2 free.
Frequently asked questions
What makes this a BCAA with electrolytes rather than just a BCAA powder?
Alongside 8,800 mg of BCAA and HMB, each serving delivers sodium (as bicarbonate and phosphate), potassium citrate, magnesium phosphate and calcium phosphate — the four electrolytes lost in sweat — plus phosphorus. You get an amino acid formula and a hydration formula in the same scoop.
Is it suitable for vegans?
Yes. Ajipure® amino acids are fermented from plant carbohydrates, and no animal-derived raw materials are used in their production.
Can I take it on an empty stomach?
Yes — it is designed for 20–30 minutes before training and during training. Some people are sensitive to sodium bicarbonate; if you are new to buffering salts, start with 2 scoops pre-training and build up to 3 over a few sessions.
How does it compare to a 2:1:1 BCAA?
6:1:1 delivers a higher leucine dose per serving — the amino acid responsible for triggering muscle protein synthesis — while we add free-acid HMB to cover protein breakdown. It is designed for anti-catabolic protection during long and hard training, not just general amino acid supply.
Does it contain caffeine or stimulants?
No. Endurance i-BCAA 6:1:1 is stimulant-free, so it can be used at any time of day and combined with a pre-workout such as Pre-Endurance Training Activator.
Is it doping-free?
SCN™ products are manufactured in the EU under strict quality control and are 100 % doping-free and cross-contamination safe. See our doping-free statement.
Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended daily dose. Keep out of reach of young children. Not intended for children, pregnant or breastfeeding women. If you are taking medication or have a medical condition, consult your doctor before use. This page is for educational and general health information only and is not a substitute for medical advice, diagnosis or treatment.
