Cordyceps - Energy Super-Mushroom
A high-quality mushroom supplement designed to enhance energy, endurance, and support overall vitality.
Buy now, pay later from £9.25/mo with
Key Benefits:
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Improves energy levels.
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Boost in athletic endurance.
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Supports adrenal function.
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Helps keep a healthy libido.
Rainbo is a Los Angeles based company that prioritise the highest quality and innovative mushroom health supplements to allow you to live a healthy life. The priorities of Rainbo are to spread mushroom healing and education to as many people as possible in the most sustainable way.
Founded by holistic nutritionist Tonya Papanikolov, Rainbo merges traditional mushroom wisdom with modern nutritional science. Inspired by her own experiences healing with functional mushrooms, Tonya built a brand that honours both the clinical and spiritual power of fungi. Their sustainably harvested, dual-extracted tinctures are sourced from organic fruiting bodies and formulated to support cognitive function, immunity, mood, and cellular health. Every bottle reflects a reverence for nature’s intelligence, transforming mushrooms into accessible, everyday allies for whole-body wellbeing.
With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.
Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.
Shipping
At Healf, we prioritize safe and fast delivery for all our customers. Our carefully selected couriers are Royal Mail and DPD.
UK standard delivery
Enjoy free standard delivery on orders above £50, this option usually requires 2-3 working days. If your order is under £50, this delivery option is available for £3.99.
Next working day
For when you need our products urgently, we offer next working day shipping for £5.99. For orders placed before 12.00, we will ship it the same day to ensure you receive your order the next working day.
International
International deliveries can take 7 working days, and up to 4 weeks. The cost is £22.99 for orders below £50, £49.95 for orders above.
Returns
If for any reason you are not satisfied with your order, we provide free 365-day UK returns for all our customers. To initiate your return, simply contact us at team@healf.com, and we'll send you a return slip and help arrange a collection. The item you return must be sent in the same condition as received and inside the original packaging. Once received, we will notify you via email.
For international returns, we unfortunately do not cover the cost. However, we work with an array of carriers and can offer self-posting returns for customers shopping from outside the UK.
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Frequently asked questions
Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.
The Healf Journal offers detailed insights into different aspects of wellbeing, as well as guidance, research, recipes, and more to help you invest in your personal wellbeing journey. You can also subscribe to our weekly newsletters for the latest updates at Healf and in the wellbeing industry. Subscribe via the sign-up block at the bottom of this page.
We love people who check ingredients as carefully as we do, so you'll find detailed information about the ingredients used on every product page (where applicable). If you see something you'd like to flag with us or have additional questions, please don't hesitate to get in touch—we'd love to hear from you.

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Healf Curation
Process™
Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.
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The Discovery

Expert Validation

Community Testing