Vitamin D3 from iHerb and delivery by Pochtoy.com

If you had to pick just one supplement for our latitudes, the answer is almost always the same: vitamin D3. It supports strong bones and teeth, morning energy, immunity and a steady mood when the sky outside is gray for half the year.

Vitamin D3 delivered via Pochtoy.com

Types of vitamin D and how they work

On store shelves, nutraceuticals come as gummy lozenges, alcohol solutions, drops and gelatin capsules. Let's look at the biological value of each formula.

D2 ergocalciferol

Ergocalciferol (D2)

A plant-based isomer obtained by irradiating mushrooms and yeast cultures. It has low bioavailability for humans and is considered an outdated compound in modern practice.

D3 cholecalciferol

Cholecalciferol (D3)

A compound identical to the substance the skin synthesizes under sunlight. It quickly enters metabolism, steadily raises plasma 25(OH)D levels and reliably maintains the result.

D3 and K2 synergy

Pairing with vitamin K2

Vitamin K2 regulates calcium metabolism: it prevents calcium from depositing in blood vessel walls and soft tissues, directing the mineral to the skeleton and dentin. At doses of 2000-5000 IU, the D3 + K2 combination is considered optimal for safety.

Forms: convenience and bioavailability

The best way to take it depends on age group and digestive characteristics.

Oil-based capsules

Oil capsules (Softgels)

Suitable for adults. The fat-soluble compound is already dissolved in olive or coconut oil, so it is absorbed in the small intestine right after swallowing. A practical, convenient everyday format.

Liquid oil drops

Oil drops

Suitable for infants and toddlers. Good American brands contain only pure vegetable oil and D3: no sweeteners, preservatives or allergens.

Water-based solutions

Water-based solutions

A common pharmacy product. To dissolve the fat-soluble vitamin in water, alcohol, stabilizers and preservatives are added, which cause colic and rashes in some children.

Chewable lozenges

Chewable lozenges

A convenient choice for children over three and for anyone who dislikes drops and can't swallow pills. Keep the package out of children's reach to prevent accidental overconsumption.

Why natural vitamin D synthesis
barely works in our regions

Unless you live year-round at the equator or in the tropics, it's impossible to get the physiological norm of the vitamin naturally.

Critical angle of sunlight
45°

Sun geometry

Vitamin production only kicks in when the sun rises higher than 45 degrees above the horizon. If your shadow is longer than your height, UVB radiation is completely absorbed by the atmosphere.

Production time window
11:30-15:30

A short window

The necessary ultraviolet radiation is available only at midday from late May to mid-August. From autumn to late spring, even on a clear, frosty noon, vitamin synthesis in the skin is zero.

UV blocking
98%

Tan and sunscreen

A tan activates melanin production, which acts as a natural barrier against UVB rays. Sunscreen with SPF 15 or higher reduces the body's vitamin D production to nothing, blocking up to 98% of radiation.

You can't stock up on the vitamin in advance. The body uses up its reserves in the liver and fatty tissue in about 3-4 weeks. What you accumulate during two weeks at the seaside won't last even until early November. That's why vitamin D is taken either year-round or at least daily from September to May.

Why a D3 deficiency drains your energy

When you lack vitamin D3, your energy reserves drop fast: it's essential for mitochondria (the cell's power stations), muscles and mood balance.

Mitochondrial failure

D3 is what triggers the synthesis of ATP, the fuel for every cell. Too little vitamin means mitochondria lose performance, and you have less energy.

Muscle weakness and pain

Without D3, the absorption of calcium and phosphorus is disrupted. The result: sluggish muscles, aches and quick fatigue even from usual workloads.

Apathy and low mood

The sunshine vitamin is tied to serotonin and dopamine. When there's too little of it, apathy, anxiety and constant drowsiness set in.

Constant fatigue

Cleveland Clinic lists persistent fatigue and lack of energy among the first signs that the body is short on vitamin D.

How to take vitamin D properly

Three basic rules to help your cells fully absorb the supplement.

Morning intake01

Take it in the first half of the day

Cholecalciferol moderately energizes the nervous system and slows the evening production of melatonin, the sleep hormone. Taking it before bed may lead to insomnia.

Pairing with fats02

Combine it with fats

Omelet, toast with butter or cheese, avocado, nuts: fats in food trigger the release of bile, which is needed to absorb vitamin molecules. Taking it on an empty stomach is pointless.

Lab test monitoring03

Don't chase doses without a test

The preventive norm for an adult without testing is 2000 IU per day. If you have symptoms of deficiency, get a 25-OH vitamin D test: if the level is below 20-30 ng/mL, your doctor will prescribe a course of 5000 to 10,000 IU.

Dosage by age

Preventive regimens, daily dose

0-12 months400-1000 IU
1-3 years1000-1500 IU
3-18 years1000-2000 IU
Adults, prevention2000 IU
Adults with deficiency5000 IU as a course

Supplements are essential for breastfed infants, since breast milk contains very little vitamin D. For confirmed deficiency in adults, 5000 IU for 2 months is usually prescribed, followed by a maintenance dose of 2000 IU.

Delivery from the USA

Terms for forwarding vitamins with Pochtoy.com

We'll deliver original iHerb bottles to your city in 5-10 days. Enjoy a special iHerb rate, a tax-free warehouse in Delaware, and buyout with no extra fees using promo code GETIHERB.

5-10 daysdelivery to your door or a pickup point
$12.99 / 1 kgspecial iHerb rate
$38.90 / 3 kgparcel up to 3 kg
Get a US address →
Delivery from iHerb via Pochtoy.com
Pochtoy.com × iHerb

How to order
vitamin D3
from iHerb

D3

From signing up to a parcel at your door.

Sign up for the service
1

Create an account

Get a free personal address at the Pochtoy.com US warehouse in tax-free Delaware.

Buy your items
2

Place the order yourself or leave the buyout to our buyers

Shop on iHerb using your Pochtoy.com address or send our operators a link to your cart. With promo code GETIHERB, the buyout service is free.

Parcel delivery
3

Pick up your order

Air delivery arrives in 5-10 days at a pickup point or by courier. Pay with Russian cards, in foreign currency, or with cryptocurrency.

Original vitamin D3 from the iHerb storefront

A selection of trusted supplements with premium-grade ingredients, verified purity, and good value per serving.

Maintenance formulas for adults (1000-2200 IU)

A base dose to support hormonal balance and the musculoskeletal system during low-sunlight seasons. Safe for continuous daily use without a prescription.

Vitamin D3, 2000 IU, 360 Softgels
California Gold Nutrition
Vitamin D3, 2000 IU, 360 capsules
$12.63

The platform's bestseller: an easily absorbed fish gelatin shell and a tiny capsule size. A year's supply of basic vitamin D at a great price.

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Vitamin D-3, 2000 IU, 120 Softgels
NOW Foods
Vitamin D3, 2000 IU, 120 capsules
$5.18

A classic from a GMP-certified brand. Dissolved in olive oil, which protects the active ingredient from oxidation.

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Vitamin D3, 2000 IU, 180 Softgels
Doctor's Best
Vitamin D3, 2000 IU, 180 capsules
$9.99

A nutraceutical brand from California. A GMO-free and gluten-free formula that keeps the active ingredient concentration stable throughout its shelf life.

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Vitamin D3, 2200 IU, 100 Vegetable Capsules
Solgar
Vitamin D3, 2200 IU, 100 vegetarian capsules
$12.56

Signature packaging made of tinted glass that blocks light. A fully vegetarian formula, taken with a substantial meal.

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Vitamin D3, 2000 IU, 250 Softgels
Nature Made
Vitamin D3, 2000 IU, 250 capsules
$17.20

The USP Verified mark confirms the purity of the raw materials and the accuracy of the dosage in every softgel.

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Liquid Vitamin D3 Drops, Citrus, 2000 IU, 30 ml
Bluebonnet Nutrition
Liquid vitamin D3 drops, citrus, 2000 IU, 30 ml
$20.76

A convenient alternative to capsules for adults. Easy to dose with a dropper, with a gentle citrus flavor and good absorption.

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Vitamin D3, High Potency, 2000 IU, 240 Capsules
NOW Foods
High-potency vitamin D3, 2000 IU, 240 capsules
$8.83

A large jar with 240 servings. Made to GMP standards with an oil base for even absorption of cholecalciferol.

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Vitamin D3, 2000 IU, 90 Capsules
California Gold Nutrition
Vitamin D3, 2000 IU, 90 Capsules
$4.92

A compact format of a popular nutraceutical. Fish gelatin and a capsule size that is easy to swallow.

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Therapeutic doses (5000-10,000 IU) for deficiency

A higher concentration to quickly bring levels back to normal. Taken in limited courses when a deficiency is confirmed by a test.

Vitamin D-3, 5000 IU, 240 Softgels
NOW Foods
Extra-strength vitamin D3, 5000 IU, 240 capsules
$12.92

A proven option for a 2-3 month course when 25(OH)D levels are below 30 ng/ml. Stable olive oil base.

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Vitamin D3, 5000 IU, 90 Softgels
California Gold Nutrition
Vitamin D3, 5000 IU, 90 capsules
$6.07

An option for a three-month course to correct a deficiency. Hypoallergenic fish gelatin shell with no dyes.

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Vitamin D3, 5000 IU, 180 Softgels
Doctor's Best
Vitamin D3, 5000 IU, 180 capsules
$9.99

High-potency cholecalciferol to quickly restore energy and immune response and relieve symptoms of fatigue.

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Vitamin D-3, 10000 IU, 120 Softgels
NOW Foods
Vitamin D3, 10,000 IU, 120 capsules
$9.54

The maximum therapeutic concentration for loading protocols in cases of severe deficiency, under a doctor's supervision.

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Vitamin D3, 10000 IU, 120 Softgels
Carlson
Vitamin D3, 10,000 IU, 120 capsules
$16.92

A premium Norwegian brand with independent lab testing for purity from heavy metals.

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Vegan Vitamin D3, 5000 IU, 60 Vegan Capsules
MRM Nutrition
Vegan vitamin D3, 5000 IU, 60 capsules
$19.99

Plant-based D3 from wild-grown lichen, with no lanolin from sheep's wool. A solution for vegans.

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Vitamin D3, High Potency, 5000 IU, 120 Capsules
NOW Foods
Vitamin D3, 5000 IU, 120 capsules
$5.45

A time-tested formula for correcting a lab-confirmed deficiency.

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Vitamin D3, 5000 IU, 360 Capsules
BioSchwartz
Vitamin D3, 5000 IU, 360 Capsules
$14.97

A large family-size jar for several restorative courses, as recommended by a specialist.

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D3 + K2 complexes (blood vessels and bones)

Dual-action formulas: vitamin K2 activates the osteocalcin protein, helping prevent arterial calcification and directing minerals into the bone matrix.

D3 + K2 with Coconut MCT Oil
Sports Research
D3 + K2 in MCT oil, 5000 IU, 60 capsules
$25.97

Vegan complex: K2 as MenaQ7 paired with organic MCT coconut oil.

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Vitamin D-3 & K-2, 120 Veg
NOW Foods
Vitamin D3 and K2, 1000 IU / 45 mcg, 120 capsules
$9.17

A gentle daily combo to support cardiovascular and joint health in older age.

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Vitamin D + K2 Liquid, 30 ml
Thorne
Liquid D + K2 complex, 30 ml
$34.00

A clinical nutraceutical brand. Free of soy, preservatives and allergens, and lets you measure your exact individual dose.

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Vitamins D and K with Sea-Iodine
Life Extension
Vitamins D and K with sea iodine, 60 capsules
$18.00

Three-in-one formula: D3 combined with a range of K isomers (K1, K2 MK-4, MK-7) and iodine to support the thyroid gland.

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D3 + K2 Liquid Spray, Vegan, 30 ml
MaryRuth's
D3 + K2 sublingual spray, vegan, 30 ml
$29.95

Under-the-tongue spray: micro-droplets are quickly absorbed through the lining of the mouth, bypassing the stomach and easing the load on the liver.

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Vitamin D3 + K2 with MenaQ7
Doctor's Best
Vitamin D3 + K2 with MenaQ7, 60 capsules
$15.44

A balanced formula for vascular protection (2000 IU D3). The MenaQ7 form is obtained through fermentation and stays in the blood for a long time.

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Vitamins D3 and K2 (MK-7)
California Gold Nutrition
Vitamins D3 and K2 (MK-7), 60 capsules
$9.22

A D3 and K2 combo in vegetable capsules. Helps maintain bone density and artery elasticity.

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Vitamins D3 and K2, 60 Capsules
Dr. Murray's
Vitamins D3 and K2, 60 Capsules
$13.64

A vegan formula with no unnecessary additives. Convenient routine: 1 capsule a day with breakfast.

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For infants and children under one year (drops for ages 0-3)

Highly purified drops in MCT coconut oil. They let you follow pediatric guidelines precisely without irritating your child's digestive system.

Baby Vitamin D3 Drops, 400 IU, 10 ml
California Gold Nutrition
Baby D3 drops, 400 IU, 10 ml
$8.92

A choice for babies from the first weeks: just MCT oil and cholecalciferol. No alcohol, sugar or preservatives.

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Baby's Super Daily D3, 400 IU
Carlson
D3 Super Daily drops for kids, 400 IU, 10.3 ml
$12.65

A patented dropper dispenses exactly 1 drop with no risk of a stream. Odorless and tasteless drops.

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Infants, Kids & Adults Vitamin D3
GreenPeach
D3 for the whole family and babies, 400 IU, 10 ml
$17.33

Pure drops in vegetable oil. A step of 400 IU per drop lets you build the right dose for any age.

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Baby Organic Liquid Vitamin D3
Ddrops
Organic D3 drops for infants, 400 IU
$17.03

A Canadian bestseller. One drop on a pacifier or breast provides a baby's daily requirement.

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Organic Baby Vitamin D Drops
Mommy's Bliss
Organic D3 for newborns, 400 IU
$12.49

USDA Organic certified. The brand makes products for newborns' delicate digestion.

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Vitamins D3 Baby Drops, 400 IU
Nature's Truth
D3 drops for newborns, 400 IU, 9.2 ml
$8.03

Affordable baby drops in coconut oil. No artificial additives, with a convenient dropper.

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Vitamin D3 Drops, 60 ml
Absolute Nutrition
Liquid vitamin D3, 60 ml
$13.39

A large bottle of D3 oil solution. Neutral taste, and a drop is easy to add to baby formula.

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Organic D3 and K2 Drops
Nature's Craft
Organic D3 + K2 drops for kids, 60 ml
$18.53

A gentle D3 and K2 combo for the development of teeth and skeleton during active growth.

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For preschoolers, school-age kids and teens

Forms for preschoolers, school-age kids and teens: tasty lozenges and drops that are easier to take than capsules. Dosages are designed for growing bodies.

Vitamin D3, Natural Berry, 500 IU
ChildLife Essentials
Berry-flavored vitamin D3, 500 IU, 30 ml
$9.99

A pediatrician favorite. Natural berry flavor, sweetened with vegetable glycerin and no sugar.

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Vitamin D3 Gummies, 1000 IU
California Gold Nutrition
Vitamin D3 lozenges, 1000 IU, 90 pieces
$9.61

Citrus pectin instead of gelatin. The jar contains a mix of flavors: strawberry, lemon and orange.

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Zero Sugar Kids Vitamin D3 Gummies
Nordic Naturals
Sugar-Free D3 Lozenges, 1000 IU, 60 Count
$14.24

Zero refined sugar. Sweetness comes from natural xylitol, which helps protect tooth enamel from cavities.

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Vitamin D for Kids, 60 Gummies
GummiKing
Kids' Vitamin D, 60 Lozenges
$8.02

Soft gummies that don't stick to your teeth. A 300 IU dose per piece gives you flexible dosing.

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Kid's Super Daily D3, 1000 IU
Carlson
D3 Super Daily Drops for Schoolchildren, 1000 IU
$14.45

A higher dose for a growing body: 1 drop contains 1000 IU and dissolves easily in juice.

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Kids Plus Multi + Omegas Gummies
SmartyPants
Multivitamins + Omega-3 and D3, 60 Lozenges
$24.99

A complete formula: cholecalciferol supplemented with EPA/DHA fatty acids, iodine, zinc and B vitamins.

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Kids D3, Orange, 800 IU
Garden of Life
Organic D3 Lozenges with Orange, 800 IU
$11.89

Natural ingredients from organic fruits. 800 IU in every chewable lozenge.

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D3 Lozenges, Watermelon, 400 IU
Nordic Naturals
Kids' D3 Lozenges, Watermelon Flavor, 400 IU
$10.58

Watermelon flavor for kids aged three and up. Strict raw material control from a global leader in nutraceuticals.

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Recommendations and dosages are provided for informational purposes only. To choose a personal regimen and rule out contraindications, get a blood test and consult a doctor.

Original vitamin D3 from the USA delivered via Pochtoy.com

Buy genuine American supplements from the iHerb catalog: a tax-free warehouse in Delaware, fast buyout and door-to-door delivery in 5-10 days.

Create an account →
Original Delivery in 5-10 days Payment assistance
Vitamin D3 delivered via Pochtoy.com
D3

Why Pochtoy.com is a better deal

Delivery from the USA since 2008: originals without pharmacy markups and fast logistics.

Original products from iHerb01

Original from iHerb

Items ship directly from iHerb hubs, so there is no risk of counterfeits and fresh expiration dates are guaranteed.

Save on costs02

Prices lower than pharmacies

Russian stores mark up foreign brands 2-3 times. By buying directly in the USA, you get supplements at the real price.

Tax-free state03

Tax-free warehouse (0% Tax)

Our warehouse in Delaware is exempt from US Sales Tax, saving you up to 7-10% on every purchase.

Consolidation04

Smart consolidation

We combine orders from different stores into one box and remove extra packaging, reducing the final weight.

Support05

Attentive support

Our agents are available seven days a week: we help with declarations, tracking and parcel checks.

Buyout06

Free buyout

If a store doesn't accept Russian cards, send us the product link and we'll buy the order for you, with payment in rubles.

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Answers to popular questions

Is the iHerb merchandise original?

Yes, only originals. Purchases are placed directly on the American iHerb. You receive vitamins with a factory seal, a valid expiration date and manufacturer batch codes. If you have a foreign bank card, you can buy out the parcel to our warehouse yourself.

Which form of vitamin D3 should I choose?

Infants: MCT oil drops at 400 IU. Preschoolers and teens: berry-flavored drops or lozenges. Adults for prevention: 2000 IU oil capsules. If a blood test confirms a deficiency, a course of 5000 IU or more is prescribed, paired with K2.

How does ordering through Pochtoy.com work?

After you sign up at pochtoy.com, you get a personal address at a tax-free warehouse in the US. Use it as the Shipping Address on iHerb, or send a cart link to our operators for buyout. We'll receive the items in your locker, pack them and forward them to you.

What do you get with the free buyout using promo code GETIHERB?

If you don't have a foreign card, our buyers will check out your iHerb cart for you. With promo code GETIHERB the buyout service is free: you pay only for the items and shipping. Pay in rubles, foreign currency or cryptocurrency.

How long does air delivery take?

From 5 to 10 business days from the date the parcel leaves the US warehouse. A special rate applies to iHerb supplements: $12.99 for a package up to 1 kg and $38.90 for a parcel up to 3 kg. Weight is calculated without excess packaging.

What's the difference between vitamins D3 and D2?

Cholecalciferol (D3) is identical to the substance your skin produces in the sun, so it's absorbed quickly and reliably. Ergocalciferol (D2) is synthesized from mushrooms and yeast; it's poorly metabolized and considered outdated.

What time of day should you take vitamin D?

Morning or midday is best. D3 energizes the nervous system and may reduce production of the night-time hormone melatonin, so taking it in the evening often causes trouble falling asleep.

Should you take vitamin D with food?

Absolutely. Cholecalciferol is fat-soluble. Take it with a meal that contains fats: fried eggs, porridge with butter, avocado, fish or nuts. On an empty stomach, absorption is minimal.

Do you need a blood test before taking it?

A preventive dose of 2000 IU is safe for an adult without any tests. If you suspect a deficiency, get a 25-OH vitamin D blood test: if the result is below 20-30 ng/ml, a doctor will choose a course of 5000-10,000 IU for 1-2 months.

Why is K2 added to vitamin D?

Vitamin K2 directs calcium to the skeleton and tooth enamel, keeping it from building up in blood vessels and kidneys. At doses up to 2000 IU, plain D3 is enough, while at higher doses a D3 + K2 combination is better.

Can newborns take vitamin D?

Not only can they, they need to: breast milk contains very little of this vitamin. Liquid MCT oil drops at 400 IU, free of alcohol, flavorings and sugar, are suitable for infants.

Which form is the most convenient?

Oil drops with a dropper are best for infants, lozenges for older children, and capsules or drops for adults who find it hard to swallow pills.

Is it true that in temperate latitudes you need a supplement almost all year round?

Yes. In Moscow, St. Petersburg, the Urals, the Volga region and Siberia, the sun sits too low on the horizon for most of the year. From October to May, the atmosphere blocks synthesis in the skin, so almost everyone needs a supplement.

Can you build up a vitamin D reserve over the summer?

No. Your body uses up its reserves in 3-4 weeks. What you get on a two-week vacation won't last even until mid-autumn, so people keep taking it either all year round or from September to May.

What payment methods are available?

You can pay for items and shipping with Russian cards (MIR, Visa, Mastercard), foreign currency cards, or cryptocurrency. With promo code GETIHERB the buyout is free: you pay only for the supplements and the weight of the parcel.

What is iHerb?

iHerb is a large American store for vitamins, natural cosmetics and organic food. It offers fresh batches, regular sales and GMP standards control. Pochtoy.com delivers any iHerb order to Russia and Belarus.

Do you need a US card to shop on iHerb?

No. If you don't have a foreign bank card, our team will buy the items for you, and with promo code GETIHERB the service has no commission. If you do have a card, you can buy on your own.

Why do you need a personal US warehouse address?

The Pochtoy.com warehouse address in Delaware is your delivery point. Stores send orders to it, and we receive them, inspect them, consolidate them if needed and ship them to your city.

Where is the Pochtoy.com warehouse located?

Our warehouse is in the state of Delaware. It's a tax-free zone (0% Sales Tax), which saves you up to 7-10% on every purchase compared to shipping to other states.

Can you combine several purchases in one box?

Yes, the Pochtoy.com warehouse combines items from different stores for free and removes extra packaging to cut weight. But thanks to the special iHerb rate, sending vitamins as a separate parcel up to 1 kg or 3 kg is the most cost-effective option.

How long is a package stored at the warehouse for free?

Every incoming parcel is stored at the Pochtoy.com warehouse for free for up to 70 calendar days. That's enough time to wait for all your purchases and send them together.

Is parcel insurance available?

Yes, insurance is available ($3 for parcels up to $100 and $5 for orders over $100). It covers the declared value if your parcel is damaged or lost during international shipping.

Who prepares the customs declaration?

The service automates the process: the declaration is filled out for free from an order screenshot or a list of links. You won't have to deal with HS codes.

Which countries does Pochtoy.com ship orders to?

We deliver parcels from the US to Russia and Belarus. Parcels travel by air from Delaware and arrive in 5-10 business days, either to your door by courier or to pickup points.

Can I send one link for my entire iHerb cart?

Yes, it's the fastest way. Add items to your cart on the US version of iherb.com (select the US country and USD currency in the header), click the "Share cart" button, and paste the link into the order form in your Pochtoy.com account. The service will recognize all the items automatically, and with the code GETIHERB the buyout is free.

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