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// BACKED BY SCIENCE

FUEL YOUR
PERFORMANCE

Premium sodium bicarbonate supplementation with the Big-name-brand-equivalent alginate hydrogel system — at a fraction of the price.

MyCarb
HEALTH AND BODYSUPPLEMENTS
BICARB
SODIUM BICARBONATE — PERFORMANCE FORMULA
PREMIUM QUALITY
PERFORMANCE SUPPORT
ENDURANCE BOOST
TRUSTED FORMULA
— 100g NET WEIGHT —
9+
Peer-reviewed studies
0.3g
Optimal dose / kg BM
~5s
Avg time trial gain
80%
Less GI vs capsules

SAME SCIENCE.
BETTER PRICE.

Larger corporations pioneered the alginate hydrogel delivery system. We've built the same formulation — at a price every athlete can afford.

🌊
Sodium Alginate
Seaweed-derived algae compound that forms a protective barrier in the stomach, allowing bicarb to absorb with minimal GI disruption.
Pure Sodium Bicarbonate
100% pure NaHCO₃ — the proven extracellular buffer that delays fatigue by neutralising hydrogen ion accumulation during intense effort.
🍃
Natural Flavourings
All-natural flavouring — no artificial additives. Clean ingredients only.
🚫
No Xanthan Gum
Cheap brands use xanthan gum or similar fillers. These disrupt the stomach lining. We don't cut corners.

TWO FORMATS.
ONE GOAL.

Choose the format that works for you — whether you're heading to a race or want something portable for training.

🎒
Travel / Training Mix
Two sachets you mix yourself. Add the Hydrogel Sachet to 100ml water in a sealable tub, shake vigorously until thick, then stir in the Bicarb Sachet. Swallow whole — do not chew.
🏁
Raceday Premade
Pre-filled spout pouch with the goop already mixed and ready. Just open and squeeze. Ideal for race-morning routines when you don't want to think about prep.

ALL PRODUCTS

Prices exclude shipping and tax. International shipping available. Discount codes applied at checkout.

BACKED BY SCIENCE.
DRIVEN BY PASSION.

A young brand with a clear mission: make elite-level sodium bicarbonate supplementation accessible to every athlete — not just those who can afford bigger brands.

THE MYCARB STORY

MyCarb was built on a simple observation: the science behind sodium bicarbonate supplementation is undeniable, but the leading delivery system — Bigger companies alginate hydrogel — was priced out of reach for most athletes.

We're a young, lean operation. Products are currently packaged in-house and will scale after takeoff. That keeps our costs low and our prices fair.

Our signed athlete Harrison Jamison (400m: 48.77, 100m: 11.24, 200m: 22.17) represents exactly who MyCarb is for — serious athletes chasing serious times, without a professional-team budget.

SIGNED ATHLETE
HARRISON JAMISON
Speed. Power. Purpose.
48.77
400m
11.24
100m
22.17
200m

WHAT'S INSIDE

Two-sachet system. No shortcuts, no fillers. Just the same alginate-based delivery that makes the bigger company's product work — at a fair price.

💧
Hydrogel Sachet
Sodium Alginate — the key ingredient. Creates the protective gel barrier.

Glucose (Powdered Sugar) — provides the saccharide matrix.

Natural Flavourings — all natural, no artificial additives.
🧪
Bicarb Sachet
Pure Sodium Bicarbonate (NaHCO₃)

Nothing else. The active ingredient dosed at 0.3g per kg body mass — the evidence-backed optimal dose.

Can be purchased separately or bundled with the hydrogel.
🔬
Why Alginate vs Xanthan?
Xanthan gum is cheap and easy to produce — that's why budget brands use it. But it disrupts the stomach lining and worsens GI distress alongside bicarb. Sodium alginate forms a true protective matrix. It's more expensive, but it works.
📋
Mixing Instructions
1. Add Hydrogel Sachet to 100ml water in a sealable tub.
2. Shake vigorously until thick.
3. Use included spoon to mix out clumps.
4. Add Bicarb Sachet. Mix until fully combined.

Swallow whole. Do NOT chew.

SUPPORT THE LAUNCH

We're raising initial investment through Kickstarter and GoFundMe to get production off the ground. Every backer helps us scale from in-house packaging to a proper production line.

Note: All product renders are AI-generated due to budget constraints — we're 16 and building this from the ground up. The renders represent our exact desired design and product vision.

THE RESEARCH
BEHIND BICARB

Sodium bicarbonate is one of the most studied ergogenic aids in sports science. Here's what the evidence says — and why delivery method matters.

// MECHANISM OF ACTION
01 / HOW IT WORKS
Buffering Hydrogen Ions
High-intensity exercise produces hydrogen ions (H⁺) that lower intramuscular pH, directly impairing muscle contraction and accelerating fatigue. Sodium bicarbonate increases extracellular buffering capacity, accelerating the efflux of H⁺ from muscle cells into the bloodstream.
02 / ALKALOSIS
Blood pH Elevation
A dose of 0.3g/kg BM raises blood bicarbonate (HCO₃⁻) by ~5–8 mmol/L above baseline — enough to create a measurable ergogenic alkalotic state. This window of peak alkalosis is when performance benefits are greatest.
03 / ION DYNAMICS
Electrolyte Changes
Beyond H⁺ buffering, SB ingestion lowers extracellular K⁺, Ca²⁺, and Cl⁻ while raising Na⁺ — altering the Strong Ion Difference (SID). This improves muscle action potential by increasing cell membrane excitability.
04 / RECOVERY
Between-Bout Recovery
The Gough & Sparks (2024) study showed HCO₃⁻ returned to pre-exercise levels within 45 min of recovery after the Maurten/alginate system — while placebo remained suppressed. This explains why the second time trial also improved.
05 / GI ADVANTAGE
Alginate Delivery
Traditional bicarb capsules cause GI distress in 60–90 min post-ingestion. The larger corporation/alginate hydrogel system reduced aggregated GI discomfort by ~80 arbitrary units vs capsules (10 vs 90 AU) in controlled trials.
06 / TIMING
Individualised Peak (ITTP)
Peak alkalosis occurs 90–240 minutes post-ingestion (median ~105 min) and varies between individuals. Individualised timing (ITTP) may optimise ergogenic benefit, though all participants in the Gough 2024 study achieved ergogenic alkalosis by 90 min.
The Effects of a Novel Sodium Bicarbonate Ingestion System on Repeated 4km Cycling Time Trial Performance in Well-Trained Male Cyclists
Sports Medicine 2024
Gough & Sparks · Birmingham City University / Maurten AB · N=10 well-trained cyclists (VO₂max: 67±4 ml/kg/min)
Maurten Bicarb System (0.3g/kg BM) improved TT1 by −5.1s vs control and −3.5s vs placebo. TT2 also improved by −4.4s vs control. GI discomfort was nearly eliminated vs capsule SB (10 vs 90 AU). Blood HCO₃⁻ recovered to pre-exercise levels within 45 min — placebo did not.
Sodium Bicarbonate Supplementation and its Impact on Endurance Performance: A PRISMA-Guided Systematic Review
JAMSS 2025
Islam et al. · Universitas Negeri Semarang · 9 studies reviewed, 2018–2025
Meta-analysis of 9 studies confirms SB improves performance in high-intensity, short-to-medium-duration activities. Benefits are greatest during high glycolytic demand. Optimal dosing: 0.2–0.4g/kg BM. Effectiveness is reduced in predominantly aerobic activities or lower-conditioned populations. Individualised protocols recommended.
Physiological Effects of Sodium Bicarbonate Ingestion via Maurten Bicarb on Endurance Running Performance
JISSN 2025
Keverkamp & Scanlon · Walsh University · N=8 collegiate endurance runners (Div. II)
No significant performance improvement (RER, RPE, HR, blood lactate) was observed in this small collegiate sample — but critically, no GI distress was reported. Authors note the exercise protocol may not have been sufficiently glycolytically demanding and recommend research at higher intensities. GI safety was confirmed.
Increased Performance in Elite Runners Following Individualised Timing of Sodium Bicarbonate Supplementation
IJSNEM 2021
Lassen et al. · Elite orienteers
Individualised SB timing reduced time-trial duration by an average of 6 seconds among elite runners, with benefits most pronounced during the latter stages of exercise when H⁺ accumulation peaks. Peak alkalosis timing ranged 60–180 minutes across individuals.
Ergogenic Effects of Sodium Bicarbonate on Resistance Exercise
JSCR 2023
Varovic et al. · Resistance-trained men
NaHCO₃ ingestion (0.3g/kg) enhanced repetitions to failure during bench press, indicating improved buffering capacity and reduced acidosis during high-intensity resistance training. Ergogenic effects appeared most in final sets where H⁺ accumulation was greatest.

DOSING GUIDE

ParameterRecommendationNotes
Dose0.3g per kg body mass0.2–0.4g/kg range; 0.3g is most evidence-backed
Timing90–240 min pre-exerciseIndividual variance; test in training first
FormatAlginate hydrogel systemSignificantly lower GI distress vs capsules
ConsumptionSwallow whole — do NOT chewChewing breaks the protective gel matrix
Best forHigh-intensity efforts >1 min400m–1500m, cycling TTs, rowing, team sports
HydrationNormal pre-competition hydrationElevated thirst is normal following SB ingestion

ATHLETE HUB

Dial in your dose with the MyCarb Dosage Calculator — enter your body weight for an instant, evidence-based recommendation, plus an exportable race-day fuel plan. Then model your six-month trajectory with the Performance Progress Predictor below.

Sodium Bicarbonate

Dosage Calculator

kg
050100150200 kg

Estimated dose

21.00 g

250.0 mmol HCO₃⁻

Beginner dose (−8 g) 13.00 g

0.3 g sodium bicarbonate per kg of body weight

Individual tolerance varies — start low and see how your body responds. Not a substitute for professional advice.

MyCarb
Race Fuel Plan
Event
Body weight
Standard dose
Beginner dose

Pre-event

During

Post-event

Recommended product

Take the pre-event dose 90–240 minutes before your event. Individual tolerance varies — start low and see how your body responds, and always test your full race-day plan in training first. This is a reference plan, not medical advice; check with a sports nutritionist if you're unsure.

Six-month performance modelling

See where your training curve
could bend further.

Enter three recent race times and MyCarb projects your six-month trajectory two ways: standard training alone, and standard training paired with sodium bicarbonate supplementation. Built on training-progression science, not promises.

13Events modelled
6moProjection window
±Illustrative estimates
Sample: 5k trajectory
Training only
With MyCarb

Build your prediction

Provide your details and three recent race results for a single event. Times are auto-detected in any common format — 48.31, 1:53.22, or 1:24:18.

Please check the highlighted fields — times should look like 48.31, 1:53.22, or 1:24:18.
Projected six-month trajectory
Months 0–6 · lower is faster
Training only
With MyCarb
6-month · training only
6-month · with MyCarb
Total improvement
MyCarb performance edge
Extra gain vs training alone

Multi-event progress comparison

Explore illustrative six-month projections across every event MyCarb models. Select any combination of events to compare on one chart, by percentage or absolute improvement.

Selected event comparison
Select one or more events above to compare their projected progress.

How these predictions are built

MyCarb's predictor combines your own performance trend with general sports-science assumptions about training progression and supplementation response. It is a planning tool, not a promise.

Your trend, as a starting point

Your three most recent race times establish a personal trend line. A consistent, steady improvement produces a more confident baseline than results that swing up and down — the model treats erratic results more cautiously.

Event-specific curves

Improvement potential differs by event. Short, largely anaerobic efforts have less room for six-month gains, while middle-distance and endurance events — where pacing, buffering capacity and aerobic economy matter more — are modelled with proportionally greater, but still conservative, headroom.

Diminishing returns over time

Gains are never modelled as a straight line. Both projections follow a saturating curve: faster early progress, with each additional month contributing a little less than the one before, matching how real training adaptations behave.

Sodium bicarbonate, conservatively applied

The supplemented line adds a modest, event-weighted buffering benefit on top of the training-only curve. Individual responses to sodium bicarbonate vary with dose, timing, gut tolerance and event demands — the model intentionally stays on the cautious side of published ranges.

These are illustrative estimates, not guarantees. Predictions are generated from simplified statistical assumptions and general sports-science literature; they do not account for injury, illness, training load, altitude, race-day conditions, or individual physiology in full. No projection in this tool represents a world-record or physiologically impossible performance. Sodium bicarbonate supplementation can cause gastrointestinal discomfort in some individuals — consult a qualified coach, physician, or sports dietitian before beginning a supplementation protocol, particularly if you have any underlying health condition.