Carnosine

Best for

Boost sprint speed and peak power

Large effect, needs confirmation · 10 mL/day · 1 study , n=14

25 papers · 4 claims · 104 outcomes scored · 4 positive

Outcomes

What carnosine actually does, by outcome

Each row is one outcome with effect size, evidence base, the dose that worked in trials, and time to first effect. Magnitude tiers come from native-unit MCID where available, Cohen's d otherwise.

Outcome Effect size Evidence Dose Weeks Rank

Hold power across repeated sprints Large effect, needs confirmation

Burst speed and power fade less as efforts stack up.

2 RCTs n=36 4.8–10 g 4 wk #4/14

27930743·40859880

large

2 RCTs n=36

4.8–10 g

4 wk

#4 /14

Boost sprint speed and peak power Large effect, needs confirmation

More watts and faster times in short all-out efforts.

1 RCT n=14 10 mL — #8/21

40859880

large

1 RCT n=14

10 mL

—

#8 /21

Push harder before the burn stops you Promising early signal

Your muscles build more acid-buffering capacity during intense training.

1 RCT n=99 2000 mg 6–12 wk #2/2

39215872

moderate

1 RCT n=99

2000 mg

6–12 wk

#2 /2

Last longer before giving out Faint early signal

More reps, more miles, and a higher ceiling before fatigue forces you to stop.

1 RCT n=22 4.8–6.4 g 4 wk

27930743

small

1 RCT n=22

4.8–6.4 g

4 wk

—

Outcome	Effect	Evidence	Dose	Weeks	Rank
Hold power across repeated sprints Large effect, needs confirmation	large	2 RCTs n=36	4.8–10 g	4 wk	#4/14
Boost sprint speed and peak power Large effect, needs confirmation	large	1 RCT n=14	10 mL	—	#8/21
Push harder before the burn stops you Promising early signal	moderate	1 RCT n=99	2000 mg	6–12 wk	#2/2
Last longer before giving out Faint early signal	small	1 RCT n=22	4.8–6.4 g	4 wk	—

Buy well

Recommended Carnosine products

Real products that dose Carnosine where the research does, in a clean formulation, from brands we've audited. We only list ones we'd stand behind.

Chosen for adequate Carnosine dosing vs. the studied range, a clean formulation (grade A–C), and independent brand-quality audits. Not sponsored.

Risk profile

Adverse events and known drug interactions

Safety events

Elevated globulins detected at week 6 (participant lost to follow-up) moderate

Sleep disturbances (reported adverse change) moderate

Transient asymptomatic elevation of alanine-serine transaminase with CRP increase mild

Exacerbation of typical musculoskeletal costochondritic chest pain (study termination) mild

Transient increase in blood creatinine mild

tingling (paresthesia) mild

nausea mild

Minor pain and bruise at venepuncture site mild

Drug interactions

Aspirin moderate additive

Oxaliplatin moderate decreases effect

Antihypertensives moderate increases effect

Co-studied with

Supplements that share evidence with carnosine

Vitaminb Group 9 shared outcomes · d=0.81

Sources

Generated August 14, 2026

Carnosine

What carnosine actually does, by outcome

Recommended Carnosine products

Adverse events and known drug interactions

Supplements that share evidence with carnosine

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Carnosine

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More evidence for Carnosine

NewArginine

NewBeet nitrate

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NewRhodiola for Fatigue and Physical Performance

Arginine

Beet nitrate

Beta-Alanine

Citrulline

Creatine

Rhodiola for Fatigue and Physical Performance