Swanson Full Spectrum Guarana gives steady energy and sharpened focus because it uses a whole seed approach that blends caffeine with polyphenols for smooth stimulation. A reliable name since 1969, Swanson's ethos is science backed quality and value. Every capsule is made to Good Manufacturing Practices standards and tested for consistency. Non genetically modified ingredients help ensure reliability.

Available Sizes & Variants:

100 capsules Swanson Full Spectrum Guarana – convenient daily energy support.

Benefits & Features:

• Boosts energy for focused, steady performance.
• Supports alertness and reduces mental fatigue during busy days at work.
• Key active ingredient guarana seed powder combines caffeine with polyphenols for smoother, longer lasting stimulation.
• Non genetically modified ingredients help ensure reliability and cleaner formulations.
• Swanson's commitment to science backed quality is evident, with in house and independent tests that help ensure consistency, safety and value for everyday energy support.

Swanson Health Products has built its reputation on accessible, science backed formulas since 1969, and Full Spectrum Guarana is a good example. The product uses a whole seed approach rather than isolated caffeine, aligning with the brand's commitment to transparency and quality. The capsules are produced in facilities that follow Good Manufacturing Practices and undergo both in house and third party testing to ensure purity.

Guarana (Paulinia cupuana) (seeds), Guarana (Paulinia cupuana) (seeds)

• GTIN: 87614019789
• Manufacturer: Swanson
• Categories: Best SellersGuarana SupplementsSubscribe & Save ProductsSwanson
• 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 1 capsule per day with plenty of water. Store in a cool, dry place. Keep out of the reach of children. Do not exceed the recommended daily intake. If you have a bad reaction to the product, stop taking it immediately. Please consult your doctor if you wish to use dietary supplements and are being treated for a medical condition or if you are pregnant or breastfeeding.

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

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Guarana (Seed Powder)

Guarana is a tropical plant whose seeds give a natural energy kick profile, rich in caffeine and polyphenols. In this product the active component is the whole seed powder standardised as a seed-based formula providing the natural stimulant profile.

This form is sourced from the seeds of Paullinia cupana and adds to the supplement's energy-supporting qualities through its natural caffeine-containing profile.

What Does Guarana Do?

There’s evidence that guarana can help with energy and focus and may help reduce mental fatigue in healthy individuals. Research shows cognitive performance can be influenced by caffeine-containing botanicals and polyphenols found in guarana.

Dr. Haskell of the University of Nottingham found that guarana improved attention and memory in adults, aligning with EFSA guidance on caffeine-containing foods supporting normal cognitive function.

This product is not intended to diagnose, treat, cure, or prevent any disease.

This brand compared to rivals: Swanson Health Products is a long‑standing, science‑backed name founded in 1969, recognised for openness, value and solid industry standing. Its well‑established reputation for quality makes Swanson a good match for Welzo as we focus on dependable provenance and accessibility alongside efficacy. The brand stands out from competitors through its clear emphasis on science‑backed quality and wide availability, with a well‑documented commitment to practical, affordable formulations.

Key differentiator: Swanson conducts in‑house and third‑party testing and flags Non‑GMO status, with GMP‑aligned manufacturing in facilities registered with the FDA. This combination of robust quality practices and open documentation aligns with our quality assurance criteria and builds trust in product integrity, which you can explore via our quality assurance criteria.

Why this product suits Swanson: Swanson Full Spectrum Guarana delivers a whole seed formula, providing guarana seed powder per capsule to support energy and cognitive function with naturally occurring caffeine, as reflected in the brand’s testing and formulation approach. Our clinical team our medical team evaluated this brand for compliance with Welzo standards, reinforcing the choice. This alignment supports clear, evidence‑based supplementation and customer confidence.