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"Vitamin D deficiency is pandemic due to the fact that most humans have depended on sun for their vitamin D requirement"

Michael F. Holick

MD, PhD, Professor of Medicine & Vitamin D researcher

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"Vitamin D deficiency is pandemic due to the fact that most humans have depended on sun for their vitamin D requirement"

Michael F. Holick

MD, PhD, Professor of Medicine & Vitamin D researcher

Third party verified - convenient and safe

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LYLsunD3 ProCaps 4000 IU

High Potency Vitamin D3 Capsules

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Third Party Verified

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Easy to Swallow Small Capsule

Clinically trusted, third-party verified D3 for stable, long-lasting vitamin levels. Small capsule. High potency. Pure, predictable absorption — every single time.

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HIGH POTENCY 4000 IU D3

Clinically trusted strength for adults and teens (11+).

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NATURAL D3 FROM LANOLIN

Identical to the form your body makes from sunlight.

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OPTIMIZED FOR ABSORPTION

D3 dissolved in purified flaxseed oil for superior uptake.

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Order now for delivery within 2-5 business days

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Product Benefits

Powerful, predictable D3 support for everyday health.

LYLsunD3 ProCaps delivers a clinically trusted 4000 IU of natural vitamin D3 in a small, easy-to-swallow capsule, ensuring stable, long-lasting vitamin D levels. Each batch is independently verified for purity and potency, giving you science-backed strength you can rely on.

Why does it work?

High strength daily support: 4000 IU — a safe, EFSA guided dose for adults and teens (11+).

Enhanced absorption: D3 dissolved in purified sunflower oil improves bioavailability and consistency.

Long-lasting vitamin stability: Oil-based formulation and capsule shell protect D3 from oxidation and degradation.

Independently tested quality: Each batch verified by GBA Group, Europe’s leading independent laboratory.

Ideal for life stages with increased needs: Valuable for teens, adults, pregnant & breastfeeding women, menopausal women, and seniors.

Strength you can trust — from the first capsule to the last.

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How To Use

Adults and teens (11+ years):

Take 1 capsule daily, ideally with food. Swallow whole — do not chew.

Children under 11:

We recommend the LYLsunD3 spray for safe, age-appropriate dosing.

Pregnancy & breastfeeding:

Suitable for use. Follow your healthcare provider’s advice if specific dosing is required.

Long term use:

Designed for safe, daily, year-round supplementation.

Storage:

Store below 25°C. Keep out of reach of children.

Key Ingredients
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Our Clinical Studies

Vitamin D3 (cholecalciferol) is the body’s preferred and most research backed form of vitamin D.

It supports:
• normal immune function
• normal calcium & phosphorus absorption
• normal blood calcium levels
• normal bones, muscles & teeth
• healthy cell division.

LYLsunD3 ProCaps combines this natural D3 with:
Sunflower oil for improved uptake.

Fat soluble vitamins absorb significantly better when delivered in an oil matrix
Premium capsule stability.

The capsule shell protects D3 from moisture and oxidation, maintaining potency throughout shelf life.

GBA verified precision
Independent quality control ensures the dose on the label is the dose you receive — with guaranteed purity.

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LYLsunD3 2000 | 4000 IU

Clinically Backed D3 Spray

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LYL premiumC™

High Performance Vitamin C

  • 4000 IU
  • 60 DAYS
  • 3RD PARTY TESTED
  • NATURAL D3
  • OIL ABSORPTION
  • GMP & ISO
  • NON-GMO
  • GLUTEN FREE
  • NO ADDITIVES
  • PHARMACY GRADE

What our customers are saying

Science meets everyday life. These are the voices behind LYLBIOTIC.

Daily Use

Stable Levels

After a few weeks of daily use my vitamin D readings moved into the optimal range and have stayed there without fluctuations. One capsule a day is enough to maintain it.

Martins K.

Verified Customer

18 Jan 2025

Easy To Swallow

The capsule is small and smooth, so taking it every morning takes no effort. No aftertaste and no irritation in the throat.

Elina R.

Verified Customer

07 Feb 2025

Winter Immunity

Used it through the darker months and felt noticeably better during cold season. No need to increase the dose or combine multiple products.

Jana P.

Verified Customer

26 Mar 2025

Best Choice

Gentle Digestion

Unlike some previous supplements, this one causes no digestive discomfort. Absorbs well when taken with breakfast.

Laura V.

Verified Customer

09 May 2025

Proven Quality

Independent testing and clear dosing information make it easy to rely on the same strength every day.

Andris B.

Verified Customer

14 Jul 2025

Travel Friendly

Blister packaging keeps each capsule protected and makes it simple to carry a few days’ supply when away from home.

Ilze M.

Verified Customer

02 Oct 2025

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Best times to take LYLsunD3 ProCaps

For daily vitality, strong bones, and stable year round vitamin D levels.

Limited sun exposure

Indoor lifestyle, winter months, sunscreen use — common reasons vitamin D drops.

Increased daily needs

Teens in growth phases, adults with higher demands, and anyone needing consistent D3 intake.

Age 50+

Natural vitamin D synthesis decreases with age — daily intake helps maintain optimal levels.

All year maintenance

One small capsule a day keeps levels steady, even when sunlight is unpredictable.

This is a smarter  daily vitamin D

Reliable absorption, proven potency, and pharmacy-grade quality — all in one clean daily capsule.

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4000 IU

EFSA-compliant daily potency

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Natural D3

Lanolin derived cholecalciferol

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Enhanced Absorption

D3 in purified flaxseed oil

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Zero Additives

No colors, gluten, lactose, GMOs

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GMP & ISO

Pharmacy-grade EU manufacturing

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Cost Effective

60 days per package

Why thousands trust LYL

Not just another e-commerce brand.

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In 10,000+ pharmacies

Recommended across Europe

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Made in the EU only

GMP & ISO certified facilities

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Fully traceable

From source to bottle

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Partner with the best

IFF Howaru® · Aker Biomarine · AstaReal® etc.

See the difference at a glance

High-purity natural D3. Pharmacy-grade quality. Independently verified for purity and potency.

LYLsunD3 ProCaps™

4000 IU EFSA-approved daily strength

Natural cholecalciferol identical to sunlight-produced D3

Purified flaxseed oil for optimized absorption

Independently tested for purity & dose accuracy (GBA Group)

GMP & ISO certified production

Available online and in pharmacies

Typical D3 Capsule

Lower or inconsistent D3 potency

Synthetic or mixed-source ingredients

Generic oil carriers with unknown absorption

No independent third-party quality testing

Produced without GMP/ISO traceability

Online-only, lacks pharmacy-grade trust

Our Blister Sealed Delivery System. Protected Potency, Every Time

1

Shielded From Air, Moisture & Light

High-barrier blisters protect each capsule from oxidation — no potency loss with every bottle opening.

2

Full Strength Until the Last Capsule

Unit dose sealing ensures every capsule delivers the exact 4000 IU — stable, fresh and clinically reliable.

3

Clean, Hygienic & Travel-Ready

Individually sealed capsules stay protected from contamination — easy to carry, easy to trust, anywhere you go.

Small, smooth capsule

Easy to swallow and no issues

Dana Verified
12th February 2025

Finally raised my vitamin D levels

I’ve taken vitamin D for years, but this is the first one I’ve stayed consistent with because the capsule is small and the results are really good.

Irene Verified
8th October 2025

We're serious about nutrition, ask away.

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How do I take LYLsunD3 ProCaps?

Take 1 capsule daily with food. Swallow whole. Suitable for adults and children 11+.

Is 4000 IU a safe daily dose?

Yes — EFSA confirms 4000 IU (100 µg) as a safe daily upper limit for adults, including pregnant and breastfeeding women.

What makes LYLsunD3 ProCaps more effective than regular vitamin D?

Each capsule contains natural D3 dissolved in purified flaxseed oil for optimal absorption, protected in blister-sealed capsules that prevent oxidation and keep potency stable.

Can I take it year round?

Yes — LYLsunD3 ProCaps is designed for daily, long term support, especially for people with limited sun exposure.

Is it safe during pregnancy or breastfeeding?

Yes — sunD3 ProCaps is safe during pregnancy and breastfeeding when used as recommended. For personalized dosing, follow your doctor’s guidance.

What’s inside each capsule?

Pure, essential ingredients only:

• Natural vitamin D3 (cholecalciferol)
• Purified flaxseed oil
• Softgel capsule (bovine gelatin + glycerin)

No colors, no sugar, no gluten, no GMOs.

How long does delivery take?

Orders are typically delivered within 2–4 business days when shipped with our international express partners such as FedEx, DHL or UPS.

During peak periods (holidays, promotions), small delays are possible.

Is shipping free?

We offer free shipping above a certain order value (shown at checkout).

Below that threshold, a small shipping fee applies depending on your country and delivery method.

Can I track my order?

Absolutely. Once your order is shipped, you’ll receive a tracking link by email from the carrier (FedEx, DHL, UPS or regional partners), allowing you to follow your shipment in real time.

Do you ship internationally?

Yes — we ship to all EU countries and a wide range of international destinations.

Available shipping options and delivery times are shown at checkout for your address. 

What if my parcel is delayed or lost?

If your order hasn’t arrived within the estimated delivery window, please contact us at support@lyl.eu or via live chat — we’ll investigate and make it right.

How do I know my order went through?

Right after checkout you’ll receive an order confirmation email with your order number, items and total amount.

Can I change or cancel my order?

If your order hasn’t been shipped yet, we’ll do our best to update or cancel it.

Please email support@lyl.eu as soon as possible with your order number.

What payment methods do you accept?

We accept all major credit and debit cards via secure Stripe processing, plus:

Apple Pay
Google Pay
Klarna (Pay Now / Pay Later, where available)


Depending on your region, additional local online banking and digital wallet options may also appear at checkout.

All available payment methods for your country are shown on the final payment step.

What if I receive a damaged or wrong item?

We’re sorry if that happens. Please email support@lyl.eu with your order number and photos of the product/parcel. We’ll quickly arrange a replacement or full refund.

Can I return my order?

Yes. You can usually return unopened products within 14 days of delivery.

To start a return, please contact us at support@lyl.eu and our team will guide you through the process.

Full details are available in our Return Policy / Terms & Conditions.

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@actressagnesezeltina

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@laura_valuta

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@dianakubasova

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@samantatina

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¹ Sales leadership data — Latvian pharmacy market 2017–2024.

² Comparison based on the average CFU content of typical probiotic supplements on the European market (up to 2 billion CFUs per capsule).

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LYLsunD3 2000 | 4000 IU

High Potency Vitamin D3 Capsules