
The Science Behind D Max
High-potency Vitamin D3 — the sunshine vitamin your body craves.
High Potency 5,000 IU
Each capsule delivers 5,000 IU (125mcg) of Vitamin D3 — the most bioavailable form of the sunshine vitamin for optimal absorption.
Bone & Calcium Support
Vitamin D3 is essential for calcium absorption and bone mineralization — without adequate D3, your body can only absorb 10-15% of dietary calcium.
Immune Defense
Vitamin D3 activates immune cells and supports your body's natural defense systems — critical for year-round immune resilience.
Best Paired with K2
D3 and K2 work synergistically — D3 helps absorb calcium while K2 directs it to bones and teeth, keeping it out of arteries.
What our customers say
★★★★★
“I started taking D Max after realizing I wasn't getting nearly enough Vitamin D from my diet alone. 5,000 IU per capsule is the perfect dose and 250 capsules means I don't have to reorder for months. Great value.'ve been taking it for a month and already notice a real difference. Quality you can trust.”
— James P., Austin, TX
★★★★★
“I pair D Max with vK2 every morning. Simple routine, clean ingredients, and I've noticed my overall energy and mood have been more consistent since I started. Exactly what I was looking for.”
— Richard L.
★★★★★
“I've gone through a lot of Vitamin D supplements over the years. D Max stands out for its purity and potency. 5,000 IU in a clean vegetable capsule with nothing else added. I trust this brand completely.”
— Carol S., Portland, OR