Ultra Preventive X is a complete multivitamin and mineral supplement built to support everyday wellness and energy with a wide mix of micronutrients for immune, bone and heart health.

Active ingredients like high bioavailable vitamin D3 and a full B complex help energy production and immune function.

Douglas Laboratories is proud of strict good manufacturing practice compliance and reliable quality assurance, ensuring purity, potency and safety you can trust.

Available Sizes & Variants:

240 tablets multivitamin - Daily support for busy lives.

Benefits & Features:

• Wide range of nutrients help daily energy and wellbeing.
• High bioavailable minerals optimise enzyme activity, muscle function and bone health.
• Vitamin D3 helps support immune function and bone maintenance, as a supplement vitamin D, while three forms of vitamin B12 help energy production and methylation.
• Broadly similar to prenatal vitamins in nutrient coverage for everyday wellness.
• Designed for everyday use, it blends into meals and daily routines, pairing nicely with probiotics.

Ultra Preventive X mirrors Douglas Laboratories' science-forward heritage. The brand is known for strict quality standards and professional grade facilities, with reliable quality assurance and third party testing to ensure purity and potency. The formula brings together a broad spectrum of vitamins and minerals with a fruit and vegetable antioxidant blend, plus advanced forms like vitamin K2 for vascular and bone support and three forms of vitamin B12 for energy metabolism. This careful sourcing and thorough approach sets it apart in a crowded market.

vitamins, minerals, bulking agents (microcrystalline cellulose, hydroxypropyl cellulose, carboxymethylcellulose), herbs (contains celery), amino acids, anti-caking agents (stearic acid, silicium dioxide), polishing agents (hydroxypropylmethyl cellulose, glycerin), betaine HCI, choline bitartrate, lycopene concentrate (contains soy), inositol (citrus bioflavonoid complex, papain concentrate, lutein concentrate, paba, pectin, bromelain concentrate, choline citrate, rutin, zeaxanthin concentrate, maltodextrin, N-acetyl L-cysteine.

• GTIN: 4335854025692
• Manufacturer: Douglas Labs
• Categories: Douglas Labs SupplementsNew Arrivals
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 4 tablets daily, preferably with meals.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Vitamin D3 (Cholecalciferol)

Vitamin D3, also called cholecalciferol, is a fat‑soluble vitamin essential for everyday bodily functions, including bone health and immune support.

This form is usually used in supplements to provide the cholecalciferol form, helping with the body's vitamin D status and overall health maintenance.

What Does Vitamin D3 Do?

Vitamin D3 helps balance calcium absorption and supports bone structure and strength. It also takes part in immune function, lining up with NHS and EFSA guidance on keeping immune and skeletal systems healthy.

Besides its role in bone health, Vitamin D3 participates in broader metabolic and immune processes that help daily well‑being.

This supplement isn’t meant to diagnose, treat, cure, or prevent any disease.

Douglas Laboratories keeps the bar high for manufacturing excellence with strict GMP-compliant facilities and professional-grade quality, ensuring purity, potency and safety across their lines. This commitment to robust manufacturing standards is the cornerstone of our decision to partner with Douglas Laboratories for Ultra Preventive X, emphasising reliability from sourcing right through to the finished product.

Douglas Laboratories has a long-standing reputation within the supplement industry for premium formulations, transparency, and clinical credibility, recognised by healthcare professionals as a trusted provider of scientifically informed multivitamins. This heritage, combined with a track record of quality and safety, made them stand out in our evaluations.

The product itself aligns with this brand strength, offering broad-spectrum micronutrients and phytonutrients with high-bioavailability mineral forms in a comprehensive daily formulation. Our team evaluated their quality assurance processes and third-party testing practices to ensure consistency with Welzo’s standards, reflected in our rigorous testing protocols and the expertise of Welzo's healthcare professionals. This collaboration supports a strong UK-market fit and compliance with safety expectations for supplement manufacturing.

Welzo’s medical team checked Douglas Laboratories against our standards, and the partnership rests on our commitment to UK safety and legal compliance. For more on our evaluation process, see the expertise of Welzo's healthcare professionals and our rigorous testing protocols.