Source Naturals Triple Boron backs bone wellness and mineral balance via three bioavailable boron forms, a method researchers such as Dr. Laura Pizzorno at Bastyr University have noted. The core active ingredients are boron citrate, boron aspartate and boron glycinate, crafted to boost uptake. Source Naturals has built a reputation on science-led formulations and careful ingredient selection.

Available Sizes & Variants:

100 capsules bottle - standard daily use

200 capsules bottle - best value for regular use

Benefits & Features:

• Supports bone health and mineral balance through boron.
• Three bioavailable boron forms improve absorption versus single form supplements.
• Boron supports vitamin D bioavailability and hormonal balance for better mineral utilisation.
• Daily capsule fits easily into most routines.
• Triple chelation maximises uptake across multiple intestinal pathways, boosting micronutrient availability throughout the day for stronger skeletal support and steadier energy for overall mobility and resilience as you age.

Source Naturals' triple boron blend draws on years of mineral science, using boron citrate, boron aspartate and boron glycinate to maximise absorption. Boron's core role is boosting vitamin D bioavailability. 3 mg per capsule matches evidence that this level is optimal for benefits, while the triple form delivery helps absorption across gut pathways. It makes a straightforward daily addition to a healthy routine.

Other Ingredients - microcrystalline cellulose, gelatin (capsule), and magnesium stearate.
Free From - Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no preservatives, or artificial color, flavour or fragrance.

• GTIN: 21078019138
• Manufacturer: Source Naturals
• Categories: Best SellersBoron Supplements & TabletsMinerals SupplementsNew ArrivalsSource NaturalsSubscribe & Save Products
• 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 one capsule per day with food.

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

The Active Ingredient Is: Boron (Citrate, Aspartate, and Glycinate Forms)

Boron is a trace mineral involved in normal mineral metabolism and supports essential bodily functions.

This formulation combines boron in three bioavailable forms—citrate, aspartate, and glycinate—to optimise absorption from the gut and utilisation by the body.

What Does Boron Do?

Boron supports bone health and mineral metabolism, and research indicates it can increase vitamin D bioavailability, aiding in mineral use and bone maintenance. It may also influence inflammatory markers and cognitive function in some populations.

Dr. Pizzorno of Bastyr University found that boron repletion can raise vitamin D levels and contribute to bone metabolism, illustrating its role in supporting normal mineral balance and skeletal health.

This product is not intended to diagnose, treat, cure, or prevent any disease.

Dietary supplements are not a replacement for a balanced diet. Do not take more than the recommended amount. Keep in a cool, dry area away from light and heat. Ensure they are out of children's reach and view.

Source Naturals stands out for its science-led approach to mineral delivery, using three bioavailable forms of boron – citrate, aspartate and glycinate – to optimise absorption. This formulation strategy highlights a clear commitment to delivering minerals in the most accessible way, aligning with our preference for products that maximise bioavailability while keeping ingredients clean and simple. The brand’s emphasis on a straightforward inactive-ingredient profile supports our aim to offer transparent, well‑formulated supplements, free from unnecessary additives. Our evaluation recognised this brand’s formulation expertise as a differentiator in a crowded market, differentiating through a focused delivery system rather than a single-form option. Welzo’s medical team reviewed this approach and judged it compatible with our ingredient quality and purity standards, ensuring conformity with our rigorous oversight. This partnership reflects a shared belief in evidence-informed formulation and safety, reinforced by our ongoing collaboration with Welzo's healthcare professionals and our commitment to our ingredient quality and purity standards.