Vitamin D Boost

(Vitamin D spray)

Vitamin D Boost is a daily oral spray formulated to help you maintain healthy vitamin D levels. Each spray delivers a fine, peppermint flavoured mist containing 1000IU vitamin D - perfect for supporting your immune system, bone health, and muscle function.

£28.00 / bottle
Get started

Our promise

If you’re new to Numan, here's how we do things.


We’re regulated by the Care Quality Commission.


Our team of clinicians and health experts can support you along every step of your treatment journey.


All our deliveries are free, discreet, and usually arrive within 24 hours.

Fast-acting oral spray technology

  1. Each spray delivers a burst of small, nutrient-packed droplets into the soft tissue of your cheek.
  2. These droplets are then quickly absorbed into the network of veins under the cheek tissue.
  3. The nutrients enter the bloodstream and are speedily delivered to where they’re needed in the body.
Fast-acting oral spray technology

Why vitamin D is important

The body needs vitamin D to function at its best. Here are a few of the ways it gives your health a helping hand.

Supports a normal immune system

Vitamin D helps to maintain a normal immune system, which is essential because the immune system is one of the body’s most important lines of defence against infection.

Maintains normal bones and teeth

The strength of your bones and teeth is largely dependent on your vitamin D levels because vitamin D helps your body absorb calcium (a key nutrient for healthy bones).

Contributes to normal muscle function

Normal muscle function is important for day-to-day activities as well as keeping fit. Vitamin D helps muscles function normally so you can continue to enjoy the activities you love most.

How Numan works

It’s healthcare without the hassle.

Free online consultation

Once complete, your consultation will be reviewed by our clinicians. Most prescriptions are approved the same day.

Free 24-hour delivery

Free 24-hour delivery

If your treatment is approved, it’ll be posted to you discreetly within 24 hours.

Continuous care

Have any questions or want to change your medication? Speak to our clinicians and they’ll be able to help.

Cancel anytime

If you’re not happy with the service, or simply don’t need treatment anymore, you can cancel anytime.

Vitamin D Boost: facts you need to know

Straightforward answers to frequently asked questions.