Pure Synergy, Bone Renewal®, 150 Capsules

What it's for

Bone health; Mineral replenishment; Calcium absorption support

Who it may fit

Adults with low dairy or mineral intake and people seeking daily bone nutrient support across active or aging lifestyles.

Key actives per serving

• Calcium (from organic Icelandic red algae): 840 mg (65% DV)
• Vitamin D3 (from organic vegan algae complex): (2,000 IU) 50 mcg (250% DV)
• Vitamin K2 (as MK-7 from fermented B. subtilis natto): 50 mcg
• Magnesium (from red algae, Dead Sea concentrate, and amino acid chelate): 420 mg (100% DV)
• Boron (as fermented boron and boron amino acid chelate): 3 mg

How to take

Take 3 to 5 capsules daily, ideally 1 to 2 with breakfast and 2 to 3 with dinner or before bed; taking with meals can aid tolerance and absorption for fat-soluble vitamin D3.

Diet / Allergen fit

Non-GMO; No Dairy; Gluten-Free; Contains: Organic fermented soy

Calcium (from organic Icelandic red algae)

Calcium serves as a primary mineral in bone matrix and supports normal bone mineral density and structural integrity.

Caution: Take with food if sensitive, and avoid taking at the same time as high‑iron supplements because calcium can reduce iron absorption.

Vitamin D3 (from organic vegan algae complex)

Vitamin D3 supports calcium absorption in the gut and helps regulate calcium and phosphorus balance for bone mineralization.

Caution: Consider total vitamin D intake from all sources to avoid excessive amounts, and take with a meal containing fat for better absorption.

Vitamin K2 (as MK-7 from fermented B. subtilis natto)

MK-7 activates osteocalcin and other vitamin K–dependent proteins that help direct calcium into bones and away from soft tissues.

Caution: Those using anticoagulant medications should consult a professional because vitamin K can affect how these products work.

Magnesium (from red algae, Dead Sea concentrate, and amino acid chelate)

Magnesium participates in bone mineral metabolism and helps regulate vitamin D activation and parathyroid hormone signaling.

Caution: May have a laxative effect at higher doses; splitting doses with meals can improve tolerance.

Boron (as fermented boron and boron amino acid chelate)

Boron supports mineral and vitamin D metabolism, which may influence calcium and magnesium utilization in bone.

Caution: Do not exceed suggested use because very high intakes of boron may cause gastrointestinal discomfort.

How they work together

Calcium provides the foundational mineral for bone, while vitamin D3 enhances intestinal calcium absorption. Vitamin K2 helps channel absorbed calcium into bone proteins, and magnesium supports vitamin D activation and bone mineral metabolism. Boron further influences mineral utilization to round out the nutrient network for bone support.

Who should be cautious: People with soy allergies should avoid this product due to organic fermented soy. Those on blood thinners such as warfarin may need to monitor vitamin K intake. People taking thyroid medications or certain antibiotics may need to separate dosing from calcium and magnesium to avoid reduced absorption. If combining with medications that may interact with calcium, magnesium, or vitamin K, discuss with a healthcare provider before use.

Noticed bone and joint comfort

Many mention feeling stronger bones and easier movement, with less discomfort in knees, hips, or back.

Easy on digestion for most

Several say the capsules are easy to take and generally digest well.

May cause stomach upset or sensitivity

A few report digestive discomfort or possible allergic reactions.