Directions for use
  • One sachet a day – perfectly portioned and ready to drink, simply rip, sip and go.
  • Store at room temperature – but for the best taste, keep in the fridge.
  • Enjoy your way – straight from the sachet, mixed into water, juice, and smoothies or drizzled over yoghurt, fruit, and oats.

A strong contender our best-tasting liquid sachet, Zooki Liquid Vitamin D can be enjoyed neat. One sachet a day is enough feel the muscle and bone-bolstering benefits, and support your body through the darker winter months. And a top tip from us - it tastes even better chilled.

Ingredients and info

Unlike many liquid supplements, this formula contains no artificial flavourings, sweeteners or preservatives, only carefully selected ingredients for a clean, natural taste.

Ingredients:

  • Purified Water - the base that carries all the other ingredients.
  • Sunflower Oil containing Phosphatidylcholine (lipids for encapsulation) - helps oil- and water-based ingredients blend smoothly and supports nutrient delivery.
  • Vegetable Glycerin (Coconut-Derived) - a natural humectant that maintains moisture and stability in the liquid.
  • Xylitol (Sweetener) - a plant-based sweetener that adds gentle sweetness without added sugar.
  • Cholecalciferol (Vitamin D3 from Lichen) - a vegan-friendly source of Vitamin D3, supporting immune health, bone strength and overall wellbeing.
  • Vitamin K2 (as Menaquinone-7) - works in synergy with Vitamin D to support bone and cardiovascular health. 
  • Vitamin E (as D-Alpha Tocopherol) - a natural form of Vitamin E that provides antioxidant protection and stability. 
  • Citric Acid (Acidity Regulator) - found naturally in citrus fruits, balances taste and helps preserve freshness.
  • Blueberry and Strawberry Extracts (Natural Flavours) - provide a fruity, berry-rich taste profile.

We use vegan friendly Vitamin D sourced from Lichen algae. 

Flavourings:

  • Mixed Berry - a blend of juicy blueberry and sweet strawberry notes for a refreshing, fruity finish.

Nutrition (per sachet):

  • Energy – 264 kJ / 63 kcal;
  • Fat – 3 g (of which saturates – 0 g);
  • Carbohydrates – 4 g (of which sugars – 0 g);
  • Protein – 0 g;
  • Salt – 0 g;
  • Vitamin D3 – 75 µg (1500% NRV);
  • Vitamin K2 – 100 µg (133% NRV).
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Shipping

UK Mainland Delivery: Enjoy free next-day delivery (Monday–Friday) on orders over £50. Orders are dispatched via Royal Mail Tracked 24 as standard. For an additional £2.95, opt for DPD Next Day delivery. Tracking details are emailed upon dispatch.
Orders Under £50: Delivery charges apply and are calculated at checkout.
International Shipping: Zooki offers worldwide shipping. Shipping costs and delivery times vary by destination and are displayed at checkout.
Same-Day Dispatch: Place your order before 4pm (Monday–Friday) for same-day dispatch.


For more details, please visit our Shipping Information page.

Immunity

Helps keep your immune system strong through seasonal shifts, daily stress, and demanding schedules.

Muscles

Supports muscle strength and function to keep you moving well through everyday demands, exercise, and recovery.

Bones

Supports bone strength and density to help you stay active, stable, and resilient through every stage of life.

4x higher absorption

Powered by advanced liposomal delivery, our nutrients are wrapped in tiny lipid bubbles that protect them during digestion and deliver them directly into your system - with clinical trials showing up to 4x greater absorption than standard supplements for faster, more noticeable results.

Liposomal delivery

Liposomal delivery helps nutrients bypass digestive barriers and enter the bloodstream more efficiently

Supports muscle function and bone strength

Helping you stay active and resilient, even during demanding days.

Delicious taste

Made with natural berry flavours and stabilised using plant-derived glycerin for a smooth berry flavour you'll look forward to taking - no added sugar or synthetic sweeteners.

Maintain optimal Vitamin D3 levels

Optimal Vitamin D levels keeps you at your best, especially through the darker months.

Feel benefits fast

Our unique combination of liposomal delivery, benefit-led doses and highly absorbable nutrient formats means your body gets what it needs, fast - so you can feel the difference, sooner.

Vegan, sugar-free and non-GMO

We source our Vitamin D from lichen algae (not sheep's wool!) - making it vegan, free from gluten, dairy, sugar, soy and artificial preservatives.

Take one sachet daily

Zooki is designed to be something you look forward to — not something you have to force down.

The science

How Liposomes increase absorption

Step 1

A lot of supplements are absorbed in the intestines through active transport - your body expends energy to absorb nutrients into the bloodstream through “protein channels” that are embedded in the one-cell thick gut wall.

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Step 2

The body doesn’t have enough of these protein channels in the gut wall to absorb the high concentrations of nutrients found in supplements, which leads to the majority of the nutrients in regular supplements passing straight through the body without being absorbed

Step 3

By encapsulating nutrients in liposomes, the nutrients can be absorbed directly into the bloodstream through M-cells in the gut lining, bypassing the need for the protein channels that get saturated and act as bottlenecks for nutrient absorption.

Step 4

This results in more nutrients entering the bloodstream and reaching the cells where they’re needed , rather than passing straight through the intestines without being absorbed.

Subscribe & save 20%

Exclusive perks and total control. Edit, pause or cancel anytime via your account with flexible delivery options that fit your schedule. Smart, effortless, and always in your hands.

Recycle your sachets, earn rewards

It's easy to recycle your sachets, you'll even earn reward points when you do.

Simply follow the instructions on the prepaid postage bag included with your order to start recycling and earning!

Zooki in the press

"Absorption is optimised"

"Recommended by the pharmacists to the Royal Family"

"Best products to take on holiday"

"Zooki tastes amazing"

FAQs

Please read our FAQs page to find out more.

What's the best time of day to take Zooki Vitamin D?

Zooki Vitamin D can be enjoyed any time of day, whenever it most convenient for you.

How is liposomal Vitamin D different to regular Vitamin D?

Zooki Liposomal Vitamin D contains vitamin D that has been wrapped in tiny lipid bubbles which increase the transport and absorption of the nutrient into the bloodstream, so you get more of the good stuff when and where it's needed. Our unique liposomal formula has been clinically proven to deliver up to 4x greater absorption vs. regular, non-liposomal supplements.

Is Zooki Vitamin D vegan?

Yes, this product is suitable for vegans. We source our Vitamin D3 from lichen algae - not sheep's wool.

Can I take it if I'm pregnant or breastfeeding?

We recommend those who are pregnant or breastfeeding consult with a health professional before adding a new supplement into their routine.

What type of Vitamin D is in Zooki Vitamin D liquid sachets?

These sachets are packed full of Vitamin D3, also known as the sunshine vitamin. Usually, when you see public health organisations talking about how we don’t get enough Vitamin D, they’re referring to Vitamin D3. If you want to get really technical, it’s ‘cholecalciferol’ to be exact.

I have a question about the ingredients / nutritional information

Please refer to the 'ingredients and info' section near the top of the page. If you're still unsure, get in touch with our friendly customer service team via hello@zooki.com or the 'contact us' form.

Didn’t find your answer?

Don’t hesitate to get in touch - just let us know which product you’re referring to so we can help you as quickly as possible!

Overall rating: 4.869604 / 5 from 1112 reviews.

AI Generated Review Summary

Zooki Vitamin D3+K2 Liposomal Liquid Sachets are praised for their great taste, convenience, and immune health benefits. Customers appreciate the excellent service, quality, and the product's ability to meet daily vitamin D3 needs effectively.

Summary topics

  • Vitamin D Benefits: 11%
  • Customer Service: 5%
  • Product Satisfaction: 6%
  • Product Taste: 48%
  • Product Convenience: 6%

Review topics: ["size","ingredients","quality","absorption","pain","results","feel","issues","value","improvement","benefits","taste","texture","box","consistency","delivery","packaging","skin","formula","service","energy","dose","boost","price","sun","strength","looks","order","impact","hair"].

Review highlights

  • "High Strength liquid Vitamin D. Nice flavour, packaging makes it easy to consume on-the-go, high quality product."Alex A.
  • "Amazing taste - And i see the difference already - very powerful supplement."Erika O.
  • "Delicious tasting vitamin D , easy to take, convenient for travel, excellent quality."Del W.

Reviews

Pleasant taste, perfect in the little sachets

"Pleasant taste in convenient sachets. Been taking this supplement in tablet form for some time but wanted in liquid form. Pleasant taste, convenient, as easy to grab a sachet and pop into my bag when rushing in the morning to to take later."

Cynthia H. (5/5)

Good

"I like that it’s 3000 units, a good high strength for everyday dose. Easy to carry around and can be a little treat, However, not a fan of the flavour, sachets are veryyy sweet and not the best flavour imo. Otherwise I’d much prefer this than taking regular supplements, id be more inclined to comply. Great that it’s sugar free and free from sweeteners and artificials. Price point is also on the expensive side, with a months supply you could get a whole years supply with some regular supplements"

Kadria S. (4/5)

I have seen a drastic

"I have seen a drastic change in my gums ever since I started using vitamin D3 and K2. I used to struggle with swollen and bleeding gums, but that has stopped since I became part of the Zooki family. I can't imagine going a day without my Zooki."

Bukola A. (5/5)

Taste great

"I just feel so much better taking vitamin D with K2"

Margaret H. (5/5)

Vitamin D3+K2 lipodomsl sachets

"Great taste and I can feel the. positive benefits in having an improved immune system."

Jordan P. (5/5)

Always great to take. It

"Always great to take. It really helps with my immunity and feeling on top"

Nadine R. (5/5)

Fabulous

"Fabulous product So convenient to take in the individual sachets"

helen s. (5/5)

My taste

"Great suplement but would help to be a higher dosage of vit d."

Ioana P. (5/5)

Body requiring Vitamin D

"Only taken few sachets waiting for blood results seems to absorb well into the body"

Nasreena J. (4/5)

I love the brand, I

"I love the brand, I will re ordering the collagen and vitamin D."

Mrs R. (5/5)

Q&A