Beta Alanine-SR is a slow-release beta-alanine supplement that helps boost muscular endurance by raising muscle carnosine levels for tough workouts and longer training blocks. Thorne Research backs it with GMP manufacturing, rigorous testing, and NSF for Sport certification, so you train confidently. PureTab sustained-release technology also helps reduce the tingling often linked with standard beta-alanine.

Available Sizes & Variants:

120 Tablets Beta Alanine-SR – Sustained-release formula designed for longer, more comfortable workouts

Benefits & Features:

• Sustained-release delivery reduces tingling and helps absorption.
• Boosts muscle carnosine levels to help buffer acid during high intensity work.
• Designed for athletes who want reliable, steady performance gains across diverse workouts.
• NSF Certified for Sport provides trusted third party testing and substance safety for athletes.
• Thorne's PureTab technology maximises absorption, ensuring smooth, steady delivery across workouts while keeping the formula gluten-free, dairy-free and soy-free for athletes with sensitivities and dietary needs.

Thorne Research has built a reputation on science-led, transparent manufacturing. The Beta Alanine-SR formula uses PureTab sustained-release technology to maximise absorption and keep the familiar beta-alanine tingling at bay. The product is manufactured under GMP, and is NSF Certified for Sport, affirming third-party testing and freedom from banned substances. It’s gluten-free, dairy-free and soy-free, aligning with modern allergen control. Athletes shopping in a supplement store appreciate the brand's commitment to quality and reliability; for those stacking, creatine monohydrate powder is a common companion.

SR CarnoSyn® Beta-Alanine, Hypromellose, Dicalcium Phosphate, Corn Starch, Rice Extract, Hydroxypropyl Cellulose, Silicon Dioxide.

• GTIN: 693749006459
• Manufacturer: Thorne
• Categories: New ArrivalsOut of stockPopular Supplement BrandsThorne Supplements
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take two tablets either once or twice a day, or as advised by your healthcare provider. Take 2 capsules at the beginning of each meal or as directed by a healthcare practitioner.

Please consult the product packaging for accurate instructions on how to use the product.

1. Beta Alanine-SR is a powerful supplement known for its ability to increase muscle carnosine levels, which can enhance physical performance and reduce fatigue during high-intensity exercise.
2. This product also has anti-aging effects, as it helps to protect cells from oxidative damage and maintain healthy cellular function.

The Active Ingredient Is: beta-alanine (SR CarnoSyn sustained-release)

beta-alanine is a handy non-essential amino acid that acts as a building block for carnosine in muscle tissue. This sustained-release form uses PureTab delivery to maximise absorption and cut tingling sensations linked with beta-alanine supplementation.

Formulated as sustained-release SR CarnoSyn beta-alanine, the ingredient is shown as a single nutrient rather than a blend of marketing names, focusing on the amino acid itself and its muscle-related role.

What Does beta-alanine Do?

beta-alanine participates in carnosine synthesis in muscles, which helps maintain normal pH during high intensity activity. This supports regular muscular function and endurance in line with EFSA-style nutrient function concepts.

Evidence suggests beta-alanine raises intramuscular carnosine levels and can improve high intensity exercise capacity, reflecting its role in supporting normal muscle performance.

This product isn't intended to diagnose, treat, cure, or prevent any disease.

Thorne Research stands out for its long-standing track record of reliability, scientific rigour and obvious commitment to quality. The manufacturer is recognised for transparency and rigorous testing, with operations conducted under GMP standards that underline quality assurance and product consistency. This reputation in the industry is strengthened by their willingness to pursue formal certifications that support athlete safety and regulatory compliance. For our team, this credibility is a big differentiator when selecting a partner for Welzo’s supplement range.

Beta Alanine-SR shows Thorne’s product quality in action. The blend uses a sustained-release delivery system (PureTab) and is produced to be gluten-free, dairy-free and soy-free, reflecting rigorous allergen control and formulation discipline. This aligns well with Welzo’s quality expectations and our standards for safety and purity the standards we enforce.

Given Thorne’s strong manufacturing heritage and the product’s alignment with our safety and testing criteria, we confidently recommend Thorne Research for this beta-alanine supplement. For more context on our vetting process and team evaluation, refer to our expert team of doctors, nurses, and nutritionists.