Beta Alanine-SR
This delayed-release formula supports sustained muscle performance and resilience by helping your body produce carnosine, which buffers fatigue and keeps energy production efficient during hard efforts.* Whether you're pushing through intense training or maintaining muscle health as you age, Beta Alanine-SR addresses a gap that plant-forward diets often leave unfilled, making it an intelligent addition to a performance-focused routine.
Thorne Beta Alanine-SR is a sustained-release amino acid supplement designed to support muscle carnosine levels, helping the body manage pH balance during exertion and resist the fatigue and soreness that can cut training short — a clinically studied option for athletes and active aging adults alike.
Beta alanine, an amino acid, plays an integral role in muscle health and endurance.* Beta alanine enables the body to produce carnosine, which is stored in muscle. Carnosine buffers the pH of muscle tissue so it produces energy efficiently without excessive lactic acid buildup, which can cause fatigue and soreness.*
Beta alanine is not just for athletes. Beta alanine muscle content also decreases with age. This, combined with powerful antioxidant support, makes Beta Alanine-SR a great option for aging individuals who wish to support muscle health and longevity.*
The best food sources of beta alanine are animal protein like meat and fish. Because the best food sources of beta alanine are animal protein, like meat and fish, individuals who are vegetarian or follow a mostly plant-based diet have less carnosine in their muscles compared to individuals who eat more animal protein.
Benefits of Thorne's Beta Alanine-SR:
- Train harder and longer by supporting muscle health and output*
- Optimize training by increasing perceived time-to-exhaustion*
- Clinically studied for benefiting athletic performance*
- Supports muscle pH to resist fatigue and delayed onset muscle soreness*
- Antioxidant effect protects tissues from oxidative stress and free radical damage*
Who can benefit from Thorne's Beta Alanine-SR:
- Athletes and fitness enthusiasts wanting to optimize their training*
- Aging individuals wanting to optimize and maintain muscle mass*
- Individuals wanting to limit animal protein in their diet
Features of Thorne’s Beta Alanine-SR:
- Formulated for optimal absorption
- PureTab® sustained-release delivery system for the benefits without the tingle
- NSF Certified for Sport®
Because an athlete needs to know that his or her supplements are trustworthy and compliant, every batch of an NSF Certified for Sport® product is tested for compliance with label claims and to ensure the absence of more than 200 substances banned by many major athletic organizations, including stimulants, narcotics, steroids, diuretics, beta-2 agonists, and masking agents.
Suggested Use:
Take 2 tablets one to two times daily or as recommended by your health-care practitioner.
Warnings:
ALLERGY WARNING
This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.
PREGNANCY
If pregnant, consult your health-care practitioner before using this product.
INTERACTIONS
There are no known adverse interactions or contraindications at publication date.
Who Beta Alanine-SR Is Built For
- Endurance and performance training: Supports muscle pH balance during high-intensity effort, helping sustain output and perceived time-to-exhaustion as part of a consistent training routine.
- Recovery-focused athletes: Helps buffer lactic acid buildup in muscle tissue, which may be part of a strategy to support reduced delayed onset muscle soreness after demanding sessions.
- Plant-based and vegetarian athletes: Those who limit animal protein — the primary dietary source of beta alanine — may have lower baseline carnosine levels, making supplementation a practical consideration.
- Active aging adults: Because muscle carnosine content naturally decreases with age, Beta Alanine-SR offers antioxidant support alongside muscle health benefits for those focused on longevity and maintaining an active lifestyle.
Frequently Asked Questions
What does Thorne Beta Alanine-SR do for muscle endurance?
Beta alanine supports the body's production of carnosine, which is stored in muscle and helps buffer pH during exercise. This may support sustained energy output and resistance to fatigue as part of a regular training routine.
Is Beta Alanine-SR only for competitive athletes?
No — while it is clinically studied for athletic performance support, it is also formulated for aging individuals whose muscle carnosine levels naturally decline over time. It may suit anyone looking to support muscle health and endurance.
Why choose a sustained-release beta alanine supplement?
The SR (sustained-release) format is designed to deliver beta alanine gradually, which is a common approach used to support steady absorption as part of a daily wellness routine.
Returns + Exchanges
Because this ships directly from Thorne, we can work with them to honor their return policy (assuming they have one).
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