Pure Encapsulations Boron (Glycinate)

Your training puts constant stress on your bones, joints, and hormonal systems — but most athletes never think about the mineral that quietly keeps all three running. Boron doesn't get the press that magnesium or zinc does, but endurance athletes logging big mileage may be shortchanging their skeleton, their vitamin D efficiency, and their hormone balance without ever knowing it.

Pure Encapsulations Boron (Glycinate) delivers 2 mg of highly bioavailable boron in glycinate form — the chelated format that absorbs cleanly and without the digestive issues that come with cheaper mineral forms.

Bone Matrix Support for High-Impact Athletes – Boron plays a structural role in connective tissue — the framework inside your bones that gives them flexibility and resilience under load. For runners, cyclists, and triathletes putting repetitive stress through their skeletal system, that structural support matters every single training day.

The Mineral Retention Connection – Here's what most athletes don't realize: boron helps your body hold onto the minerals that keep you performing. It actively supports the metabolism of calcium, phosphorus, and magnesium — the building blocks of muscle contraction and bone density — and reduces how quickly you lose them through urine. If you're already supplementing magnesium, boron helps make that investment count.

Vitamin & Hormone Support – Boron also plays a supporting role in how your body produces and maintains vitamin D and key steroidal hormones like estrogen and testosterone — protecting them from rapid breakdown. That hormonal stability matters for recovery, bone density, and training adaptation, especially during high-volume training blocks.

How to Use Pure Encapsulations Boron:

Take 1 capsule, 1–3 times daily with meals. Most athletes start with one capsule daily and adjust based on their training load and dietary intake. 

With Meals: Always take with food to support absorption and minimize any stomach sensitivity.

Pro Tip: Pair with your magnesium supplement — boron enhances magnesium metabolism, so taking them together makes both more effective.

Pure Encapsulations is a practitioner-trusted brand formulated without wheat, gluten, soy, dairy, GMOs, artificial colors, or unnecessary fillers. Every ingredient has a reason to be there — and nothing else.