Skip to main content

D3, more vital than you think.

Now more than ever, Vitamin D3 plays a vital role in overall health.

  • Vitamin D3 is a constant supporter of immune function.*

This Year, Get Stronger

Designed to keep your body healthy and strong for years to come.

Stacked with key bone nutrients, this formula features a powerhouse trio of calcium, vitamin D and vitamin K2 (from MK-7) in their most bioactive forms. Combined in this daily supplement, vitamin K2 helps direct calcium to your bones and delivers a full daily dose of vitamin C -- exactly what you need to stay active and vibrant.

Buy Now

Activate your mind

A superfood powerhouse for focus, memory and mood.

At Doctor’s Best, we’re committed to providing you with the most effective, rigorously studied supplements. That’s why we’re thrilled to introduce our Neurotrophic Brain Formula, scientifically formulated to promote brain health and Brain Derived Neurotrophic Factor (BDNF). We stimulate the production of this key neuroprotein through NeuroFactor®, an all natural, polyphenol-rich ingredient from the coffea arabica plant that’s extracted through a patented process. Paired with potent plant-based ingredients like green tea extract and turmeric extract (Curcumin C3 Complex®), this innovative formula helps enhance learning, memory and focus. It’s peace of mind in more ways than one.

Buy Now

This is a carousel with rotating slides. It is not auto-rotating. Use Next and Previous buttons to navigate.


High Absorption Magnesium Glycinate Lysinate

"Life changing!!!!! This has literally changed my life! No more paralyzing anxiety, chronic pain, muscle spasms, or insomnia. If you suffer with depression and/or anxiety, no matter how bad it is, TRY THIS! It is a game changer. Wish I found out sooner…and I’m a physician!!! "

September 7,
High Absorption Magnesium Powder

"This is the best magnesium you can buy. Most pure, most nutrient per dollar based on independent tests. If you're serious about your health you should have this on hand even if you don't take it every day."

June 1,
High Absorption CoQ10 with BioPerine

"Fantastic product with a vegetable or vegetarian capsule! Love it!! I feel like this product truly helps me have a clearer mind. GREAT product at a great price and I wouldn't use any other brand. I love that their capsules are of a vegetable or vegetarian source. No gelatin. Thank you for a great product!!"

September 2019
  • Previous Slide(s)
  • Next Slide(s)

This is a carousel with rotating slides. It is not auto-rotating. Use Next and Previous buttons to navigate.


On the Gram