Skip to content 
Vitamin D3 4,000 IU Capsules • 100µg Cholecalciferol • UK
4,000 IU Vitamin D3. 100µg clearly stated per capsule.
Crown Supplements Pure Vitamin D3 Capsules 4,000 IU provide a dedicated higher-strength Vitamin D3 option containing 4,000 IU of cholecalciferol in every capsule. Expressed in micrograms, the same amount is 100µg (100mcg), giving customers a clear strength-specific specification in both common measurement formats.
Vitamin D3 per capsule
100mcg equivalent
Vitamin form
Precisely identified D3
4,000 IU snapshot
Vitamin D3
Cholecalciferol
4,000 IU
100µg (100mcg)
Understanding the 4,000 IU strength
100mcg Vitamin D3 expressed as 4,000 IU.
Vitamin D3 is also known as cholecalciferol. This Crown Supplements page is built specifically around the 4,000 IU Vitamin D3 strength, giving this variation its own clearly defined specification.
Each capsule provides 4,000 IU of Vitamin D3. That same amount can be expressed as 100µg, or 100mcg when the microgram unit is written using the common mcg abbreviation.
Customers specifically comparing Vitamin D3 4000 IU capsules and 100mcg Vitamin D3 therefore have the exact corresponding measurements stated directly on this strength-specific product page.
4,000 IU
The dedicated IU strength
Every capsule in this variation provides exactly 4,000 IU of Vitamin D3.
The strength is stated directly so this product remains clearly separated from other Vitamin D3 IU options.
100µg
The equivalent microgram amount
4,000 IU of Vitamin D3 corresponds to 100 micrograms.
That can be written as either 100µg or 100mcg.
4,000 IU and 100µg explained
One cholecalciferol strength. Two recognised measurements.
Vitamin D3 quantities are often written in either International Units or micrograms. On this product, 4,000 IU and 100µg identify the same Vitamin D3 quantity per capsule.
4,000 IU
International Unit measurement
IU means International Units.
The exact amount provided by this strength is 4,000 IU per capsule.
100mcg
Microgram measurement
The same amount is 100 micrograms of Vitamin D3.
100mcg and 100µg describe the same microgram quantity.
Vitamin form
Per capsule
100mcg equivalent
Vitamin D3
Why choose Vitamin D3 4,000 IU?
A higher-strength D3 option with the numbers clearly stated.
This Crown Supplements variation is specifically intended for shoppers looking for Vitamin D3 4,000 IU capsules or a 100mcg Vitamin D3 strength. Both figures are displayed throughout this page to keep the product clearly separated from other Vitamin D3 strengths.
4,000 IU focus
This page is dedicated specifically to the 4,000 IU Vitamin D3 variation.
100mcg equivalent
The corresponding microgram amount is displayed for customers searching by mcg.
Cholecalciferol
The precise Vitamin D3 identity is stated directly.
Per-capsule strength
Every capsule provides the stated 4,000 IU / 100µg amount.
Two measurement formats
IU and micrograms are both shown throughout the page.
Higher-strength intent
The wording is built around shoppers specifically comparing higher-strength Vitamin D3 options.
Search the strength your way
4,000 IU or 100mcg Vitamin D3.
Different shoppers describe the same Vitamin D3 strength in different ways. This variation keeps both major measurement terms together while remaining centred specifically on the 4,000 IU product.
Available capsule quantities
Choose your 4,000 IU Vitamin D3 capsule quantity.
Choose from 90, 180, 270 or 360 capsules. Every capsule contains the same 4,000 IU / 100µg Vitamin D3 strength.
4,000 IU Vitamin D3 capsules
4,000 IU Vitamin D3 capsules
4,000 IU Vitamin D3 capsules
4,000 IU Vitamin D3 capsules
Complete 4,000 IU product specification
Everything needed to identify the 100mcg Vitamin D3 strength.
This Crown Supplements variation is centred specifically on 4,000 IU Vitamin D3, equivalent to 100µg / 100mcg of cholecalciferol per capsule.
Crown Supplements Pure Vitamin D3 Capsules 4,000 IU
Higher-strength Vitamin D3 capsules
Vitamin D3
Cholecalciferol
4,000 IU
100µg (100mcg)
90, 180, 270 and 360 capsules
Vitamin D3 4000 IU, Vitamin D3 4,000 IU capsules, 100mcg Vitamin D3, 100µg D3 and 4,000 IU cholecalciferol
Crown Supplements
Storage and product information
Keep your 4,000 IU Vitamin D3 stored correctly.
Store in a cool, dry place away from direct sunlight.
Keep the pouch securely closed after opening.
Follow the information displayed on the current Crown Supplements product label.
Vitamin D3 4,000 IU questions
Frequently asked questions.
Vitamin D3 4,000 IU Capsules • 100µg • Cholecalciferol
Choose the 4,000 IU Vitamin D3 strength.
Crown Supplements Pure Vitamin D3 Capsules 4,000 IU provide 4,000 IU of cholecalciferol per capsule, equivalent to 100µg (100mcg).
4,000 IU Vitamin D3. 100µg. Cholecalciferol. Higher-strength D3 clearly identified.
Select your preferred capsule quantity in the purchase panel above.