Doctor's Best Ultra Cordyceps is a dietary supplement that helps energy and stamina with cordyceps sinensis extract, made for daily use and rooted in our science-based nutrition heritage.

Available Sizes & Variants:

sixty capsules provide a handy daily dose for steady support.

Benefits & Features:

• Helps energy for everyday activities.
• Supports stamina during workouts for longer, steadier sessions and quicker recoveries.
• This key ingredient, cordyceps sinensis, is backed by human studies showing improved energy and exercise performance, with potential benefits for lung and liver function in some groups.
• Vegan, non-GMO, and gluten free, aligning with a clean living and taste.
• Produced in facilities that meet good manufacturing practice standards to uphold safety and traceability.

Doctor's Best prides itself on science based nutrition and clear quality standards. Cordyceps sinensis extract is cultivated from a strain recognised by Chinese authorities as similar to wild Cordyceps, delivering consistent potency. The product is vegan, non-GMO, and gluten free, and made in facilities that meet good manufacturing practice standards to uphold safety and traceability. This heritage of rigorous manufacturing helps you feel confident about daily energy support.

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 daily, with or without food, or as recommended by a nutritionally informed physician. Store in a cool, dry place. Warning: Cordyceps has mild blood-thinning properties. Use with caution when taking anticoagulants or MAO inhibitors.

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: Cordyceps sinensis (mycelium extract)

Cordyceps sinensis extract, sourced from the mycelium, is a fungal herbal ingredient designed to support daily energy and vitality. This form is standardised to provide a consistent bioactive profile in vegan capsules.

This formula uses a cultivated Cordyceps sinensis source, aimed at purity and reproducible quality within GMP-certified manufacturing practices.

What Does Cordyceps sinensis Do?

Cordyceps sinensis is linked to supporting energy, stamina, and exercise performance according to research. Studies suggest possible improvements in energy levels and VO2 max with sustained use, along with indications of broader vitality and liver and lung function support.

EFSA-aligned evidence notes the enhancement of oxygen utilisation and energy-related outcomes, with effects seen after longer-term use.

Doctor's Best is Welzo chosen for Cordyceps because of the brand's manufacturing excellence and clear commitment to science-based nutrition. The brand operates in GMP-certified facilities, ensuring quality and safety across its products, including vegan, non-GMO formulations that align with our quality expectations. This emphasis on very rigorous production standards forms the backbone of why Doctor's Best stands out in a crowded market.

Independent validation and transparency about manufacturing practices underpin our confidence. The brand’s positioning around fermentation-based, purified Cordyceps with consistent specifications supports reliable dosing and product purity, which we value when selecting partners for energy and vitality supplements. This is reinforced by our team's assessment of their quality framework and certifications, which you can review via the standards we enforce.

Our endorsement reflects Welzo's vetting process and the expertise of our team of medical experts, who evaluate supplier credibility, heritage, and manufacturing discipline. Doctor's Best delivers a product fit for Cordyceps, with a focus on consistency, purity, and long-term reliability, making them a solid partner for this supplement.