SynBio Vitamin D3 800 IU
Most Recommended Strength by Healthcare Professionals
Looking for the vitamin D strength most often recommended by healthcare professionals? SynBio Vitamin D3 800 IUis your trusted daily essential — delivering a clinically supported dose of cholecalciferol to help maintain strong bones, a healthy immune system, and everyday vitality.
Why It’s Widely Recommended:
800 IU (20 µg) is the strength most frequently advised by healthcare professionals in the UK for general daily supplementation — especially for adults with low sun exposure, older individuals, or those at higher risk of deficiency.
Aligned with NHS Guidance
This dose falls within the safe, effective range endorsed by UK health authorities for long-term use.
Key Benefits:
Immune System Support
Helps keep your immune defences strong and responsive, especially during colder months.Bone & Muscle Strength
Supports normal calcium absorption, helping maintain bone density and healthy muscle function.Mood & Energy Support
Contributes to normal psychological function — ideal for winter months or those spending limited time outdoors.Healthy Ageing
Supports bone integrity and muscle performance — key pillars of mobility and long-term wellness.
Why Choose SynBio?
Pharmaceutical-Grade Quality
Manufactured in the UK under GMP-certified standards for purity, safety, and consistency.Vegetarian & Halal Certified
Suitable for vegertarians and those following halal diets.Free From
Gluten, dairy, soy, artificial colours, preservatives, or animal-derived ingredients.
Trusted by professionals. Backed by science. Made for daily wellbeing.
SynBio Vitamin D3 800 IU is a simple, effective way to support your health — every day, all year round.
Bulking Agent: Microcrystalline cellulose, Vitamin D3 (Cholecalciferol, Maltodextirin, Starch, Sucrose), Anti-Caking Agent: Magnesium stearate.
Outer Capsule Shell: Hydroxypropyl methylcellulose.
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