Innerfuel Prebiotic Blend
Discover Bulletproof’s Innerfuel Prebiotic Blend—an easy, flavourless way to support your daily routine with plant-based fibre.
Buy now, pay later from £11.37/mo with
Key Benefits
- Flavourless and simple to mix into any drink
- Features plant-based guar gum, acacia, and larch arabinogalactan
- Effortless addition to your daily rituals
- Guar gum contributes to the maintenance of normal blood cholesterol levels
Start your day with a gentle boost from Bulletproof’s Innerfuel Prebiotic Blend. This neutral-tasting powder blends seamlessly into your favourite drinks or recipes, making it easy to enjoy plant-based fibre every day. With guar gum to help maintain normal blood cholesterol levels, plus acacia and larch arabinogalactan, Innerfuel is designed for those who want a simple, effective way to support their wellbeing—without any fuss or flavour.
Bulletproof was founded by biohacker and entrepreneur Dave Asprey, who set out to optimise human performance through science-backed nutrition. Inspired by his own health journey, he created Bulletproof to offer high-quality, functional nutrition designed to fuel both body and mind. From supplements to coffee, every product is thoughtfully sourced and formulated to support energy, focus, and resilience—helping you unlock your full potential and discover what better feels like.
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.
Organic Acacia, Partially Hydrolyzed Guar Gum (Sunfiber®), Larch Arabinogalactan (ResistAid®) (Larix laricina, Larix occidentalis heartwood of Larch tree)
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.
You may also like
Shop by collection
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.
Translate your body’s data into a
personalised wellbeing plan.
Healf Curation
Process™
Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.
Discover more
The Discovery
Expert Validation
Community Testing