Synergistic D3 and K2 formula ensuring calcium reaches your bones, not your bloodstream - essential protection as oestrogen declines during perimenopause.
Vitamin D3 mobilises calcium from your diet into circulation, but without K2, that calcium can deposit in soft tissues instead of bone. This formula pairs 3,000 IU D3 with 100mcg of K2 (MK7) - the most bioavailable form - to activate osteocalcin and matrix Gla protein, directing calcium precisely where your skeleton needs it. During perimenopause, falling oestrogen accelerates bone mineral loss, making this combination particularly important for active women.
Why This Formula
✔ 3,000 IU vitamin D3 supports calcium absorption, immune function, and mood regulation
✔ 100mcg vitamin K2 (MK7) directs calcium into bones and away from arteries and soft tissue
✔ Synergistic pairing - D3 and K2 work together for optimal bone mineral metabolism
✔ Supports immune system function during periods of hormonal change and high training load
✔ May support mood and energy - vitamin D deficiency is common in the UK and linked to low mood
✔ One capsule daily for simple, effective bone protectionWho It's For
Active women in perimenopause who want to protect bone density as oestrogen declines. Also valuable for anyone training regularly who needs robust immune and mood support, particularly through the UK winter months.
Not suitable for children. Consult your healthcare practitioner if pregnant, lactating, taking blood-thinning medication (warfarin), or under medical supervision.
The xSpan Labs Standard
Small-batch manufactured in the UK to GMP and ISO 9001 standards. No unnecessary fillers, no artificial colours, no inflated marketing - just premium-grade ingredients in their most effective forms. Every batch is tested for purity and potency.
Reviews
Much smaller so much easier to swallow as well for people with difficulty and I love the packaging, its flat easy to store in your cupboard making use of maximum space available in that cupboard.
Great value for money. I've been taking magnesium for a while now and these are just as good as the more expensive brands.
I have been taking magnesium for a while now and these are just as good as the more expensive brands.
Very easy to swallow, I take two at night before bed and it helps me sleep.
I take 2 capsules at night and have a much better sleep.