PRL Vitamin D3 Serum


Vitamin D3 from Premier Research Labs is naturally-sourced and produced without hexane extraction.


Vitamin D3 is now regarded as a very important nutrient for helping us to maintain optimum health. It is one of the few essential nutrients that cannot generally be consumed in sufficient amounts in food. (Best nutritional sources being salmon, mackerel, sardines, and tuna, although they only contain around 5mcg per serving.) Usually, we meet our Vitamin D3 requirement through exposing our skin to sunlight, which is one reason why we usually feel so good when we are on sunshine holidays or during the summer months. This nutrient plays many invaluable roles in our bodies:

  • Supports immune function
  • Necessary for strong and healthy bones
  • Needed for proper function of the thyroid
  • Helps in calcium absorption
  • Plays a role in cardiovascular function
  • Supports healthy inflammatory response
  • Needed for normal cell division

Most people in temperate climates do not receive sufficient sun exposure to meet their vitamin D requirment, especially during the cooler months of the year. As a result, most are deficient of ciculating vitamin D3. The RDA of vitamin D3 in Europe is 5mcg per day, but this is believed by many scientists now to be a gross underestimation of what is needed for optimum health.

Premier Research Labs’ Vitamin D3 is one of the most bio-available and non-toxic Vitamin D3 nutritional supplements available. It is extracted from sheep’s wool using methanol, and analysis confirms that it is free from methanol, hexane and cholorbenzene tagalongs. The only other ingredients in the product are the extra virgin olive oil base, and natural vitamin E, which acts as a natural preservative.

Vitamin D3 (per drop – 0.026ml)25 µg (1000IU) – 250% RDA
Extra virgin olive oil, D-Alpha Tocopherol (natural Vitamin E)

Directions: Take one drop a day with any meal. If you are pregnant or lactating, consult a physician before use.

Servings per bottle: approx 527

Additional information


liquid form. / 12.6mL

Tech Specs

Vitamin D3 Serum

Used nutritionally for:
Immune system support, bone health, endocrine function, muscle function, heart health and normal cell division

Available Sizes: 

Take one drop daily with meals. If you are pregnant or lactating, consult a pysician before use.

Do not take if you have elevated calcium levels or elevated Vitamin D levels.

Side effects:
Nausea and stomach cramps in very high doses.

Allergen information:
None known

Dietary information:
Suitable for vegetarians but NOT vegans as product extracted from wool. Contains tiny amount of alcohol.

Suggested Combinations: