Key Benefits

• Feel ready for anything—Vitamin C supports your immune system and helps protect cells from oxidative stress.

• Stay energised—Calcium contributes to normal energy-yielding metabolism and muscle function.

• Advanced liposomal delivery for optimal absorption.

• 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.

Liposomal Vitamin C, Liposomal CaAKG (Calcium Alpha-Ketoglutarate), Liposomal P.E.A. (Palmitoylethanolamide), Liposomal HLA (Hyaluronic Acid), Vegetable Cellulose (capsule), Sunflower Lecithin, Rice Flour, Microcrystalline Cellulose, Passion Flower Extract.

No artificial colors, flavors or preservatives. Non-GMO.

Suitable for vegans.

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.

Take two (2) capsules daily with or without food.

Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using.

Store in a cool, dry place. Do not use if safety seal is broken or missing.

Additional Information:

Food supplements and foods sold by Healf should not be used as a substitute for a varied, balanced diet and healthy lifestyle.

If you are pregnant, breastfeeding, have a medical condition, or are taking any medications, please consult with a healthcare professional before use. Use products only if the seal is intact. Store in a cool, dry place, out of the reach of young children. Do not exceed the recommended daily intake.

We make every effort to ensure that product information on our website is accurate and up to date, but packaging and ingredients may occasionally vary from images shown on site. Please refer to the product label and contact Healf before use if you have any questions regarding your specific allergies or intolerances.