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Renue By Science’s Shield: Liposomal Vitamin C and CaAKG for daily vitality and immune support.
Free sample each month
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365 day free returns
In stock. Next day delivery available.
Buy now, pay later from £14.12/mo with
Free UK shipping over £50, free returns.
Key Benefits
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Feel ready for anything—Vitamin C supports your immune system and helps protect cells from oxidative stress.
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Stay energised—Calcium contributes to normal energy-yielding metabolism and muscle function.
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Advanced liposomal delivery for optimal absorption.
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Vegan-friendly and free from artificial colours, flavours, and preservatives.
Start your day with confidence. Shield brings together liposomal Vitamin C and Calcium Alpha-Ketoglutarate (CaAKG) in a formula designed for maximum absorption and convenience. Vitamin C contributes to the normal function of the immune system and helps protect your cells from oxidative stress—ideal for busy lifestyles. Calcium supports normal energy-yielding metabolism and muscle function, helping you feel your best throughout the day. The liposomal delivery system ensures these nutrients are absorbed efficiently, so you get the most from every capsule. Choose Shield for a simple, science-led way to support your daily wellbeing.
Shield stands out for its liposomal delivery system, which improves the bioavailability of each active compound, ensuring they reach your bloodstream effectively. Unlike standard supplements that break down in the digestive tract, the liposomal format protects and transports Vitamin C, CaAKG, P.E.A., and HLA directly into circulation. This ensures you gain more consistent and impactful benefits, preserving your NAD⁺ resources and supporting energy, repair, and healthy ageing at the cellular level.
Bryan Nettles founded Renue by Science back in 2017, inspired by his passion for research and science regarding healthy ageing. In addition to fitness, diet, and sleep, supplements have played an essential role in his life. Bryan’s mission is to educate and motivate people to live long and strong lives. Today, Renue by Science offers the highest quality, most comprehensive range of bioavailable longevity products at the best possible price. They work with leading experts and doctors to stay updated on the latest research, using these insights and customer feedback to bring you the most effective solutions available.
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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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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