SCIENCE • RECOVERY

Lactic Acid Buffer: What Athletes Need to Know

Lactic acid gets blamed for burning legs and dead lungs late in a race. Here's what the research actually says about buffering it — and what actually helps.

The evidence, graded

Sodium bicarbonate

The most researched lactic acid buffer there is. It works by raising blood pH, which helps delay the onset of muscular fatigue during hard efforts. Dozens of controlled trials show measurable performance gains in high-intensity work lasting roughly one to ten minutes.

Beta-alanine

This one buffers acid inside the muscle itself, working through carnosine rather than the blood. It needs weeks of consistent loading to build up to useful levels. Best suited to repeated short sprints and interval work rather than a single all-out effort.

Lactate salts on their own

Simply ingesting lactate doesn't meaningfully change how the body clears or buffers lactic acid during exercise. The evidence here is weak and inconsistent. On their own, these salts don't earn a place in a serious performance formula.

The supporting cast

Citrate salts and beta-alanine/bicarbonate combinations carry moderate evidence behind them. They're not headline ingredients, but they earn their spot as secondary players. Useful when layered into a well-designed, blended formula.

What this means for buying one

Does it contain a clinically dosed buffering agent like sodium bicarbonate or beta-alanine, not just lactate salts?

Is the dosing per serving printed clearly on the label, matching what was used in research?

Will it sit well in your stomach during hard training, or cause GI distress?

Our Lactic Acid Buffer

We built our Lactic Acid Buffer around clinically-dosed sodium bicarbonate and beta-alanine — the two ingredients the evidence actually backs. Every dose is printed on the label, exactly as used in the research, with nothing hidden behind a proprietary blend. And because a buffer is only useful if you can train on it, we formulated it to sit gently in the stomach and avoid GI distress. Hold it up against the three questions above, and judge it for yourself.

What athletes are saying

"I take it before every 2k test. My last 500m used to fall apart — now I can actually hold form to the line. The transparent dosing is what sold me."

James Whitmore

Lightweight Rower

"Metcons where the buffer really shows up. Round three and four feel less like a wall. No stomach issues at all, which was my worry with anything bicarb-based."

Priya Sharma

CrossFit Athlete

"The 800m is basically a lactic bath. This is the first thing I've used where the final 200 doesn't completely lock me up. Peach lemonade goes down easy pre-race too."

Daniel Okafor

800m Runner

FAQ

Yes, when they contain clinically-dosed ingredients like sodium bicarbonate or beta-alanine at research-backed doses, they can meaningfully delay fatigue in high-intensity efforts.

A supplement designed to help the body manage the acid produced during intense exercise, typically using bicarbonate, beta-alanine, or citrate compounds to raise pH or increase intramuscular buffering capacity.

Sodium bicarbonate works within 60-90 minutes of ingestion; beta-alanine needs 2-4 weeks of daily loading before benefits appear.

Poorly dosed bicarbonate can cause GI distress; look for split-dosing or buffered formulas designed to minimize this.

Athletes doing repeated high-intensity efforts lasting 1-10 minutes: rowing, CrossFit, middle-distance running, cycling intervals, combat sports.

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