Charava Vitamin D3 (4000IU) + K2 (MK-7)

D3 and K2 — The Longevity Pairing

Charava Vitamin D3 4000 IU + K2 MK-7 is a precision-formulated supplement that combines two of the most important fat-soluble vitamins for long-term bone, immune, and cardiovascular health. Vitamin D3 (cholecalciferol) at 4000 IU provides a meaningful therapeutic dose for those correcting a deficiency or maintaining optimal levels year-round — particularly important in the UK, where sunlight-derived D3 synthesis is limited for much of the year. Vitamin K2 as MK-7, the most bioavailable and long-acting form of K2, ensures that the calcium mobilised by Vitamin D3 is directed to the bones and teeth rather than accumulating in the arteries — a critical distinction that makes this pairing significantly more beneficial than D3 alone.

Charava is a longevity-focused supplement brand committed to evidence-based formulation and ingredient transparency. Each batch is produced to rigorous quality standards with third-party testing for purity and potency, and the formula is free from artificial additives, unnecessary fillers, and common allergens. The capsule format ensures consistent, precise dosing and is designed for easy daily integration alongside a meal containing healthy fats to maximise absorption of these fat-soluble vitamins.

At Calm Era, we stock Charava because their approach to supplementation aligns closely with our own — evidence-led, transparent, and focused on the long game. Vitamin D3 + K2 MK-7 at 4000 IU is one of the most impactful daily supplements for UK-based wellness, addressing one of the most prevalent nutritional deficiencies while actively supporting cardiovascular and skeletal health. A small daily habit with significant long-term returns.