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Here's why Douwe, 2x Dutch skateboarding champion, takes algae daily to support his gut

Your gut is the core of your health, and the most nutritious category of plants is missing from almost every diet: algae. This is why Douwe gets his algae from plnktn:

  • Nourish your gut with the missing plant category: algae
  • With fibre and calcium, which contribute to your digestion
  • Four whole algae, 75+ nutrients
  • 100% natural, from European soil
Support your gut
  • 20,000+ customers
  • 30 Day Money Back Guarantee

Plankton helps Douwe perform at the highest level.

"Training hard, eating well, and sleeping well are the foundation for performing at a top level. Algae are an extension of that: they are one of the most nutrient-dense food sources on earth, and I notice that my gut is calmer."

5 reasons why Douwe chooses plankton to support his gut

Chlorella, spirulina, wakame and lithothamnium. Together, 75+ nutrients naturally present in the algae.

Contains naturally occurring calcium, which contributes to the normal function of digestive enzymes.

EFSA-approved health claim (Regulation EU No. 432/2012).

With vitamin B12 and iodine, which contribute to normal energy-yielding metabolism.

EFSA-approved health claim (EU Regulation No. 432/2012).

Four capsules with your breakfast. No powder, no blender. And no algae taste.

No synthetic supplements from a lab in China, but 4 naturally nutritious algae grown in Europe: chlorella (Netherlands), spirulina (Spain), wakame (France), lithothamnium (Iceland).

Plankton Capsules

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A blend of four nutritious algae. Your responsible and natural support.

  • Easily provides you with 75+ nutrients
  • Daily, for the core of your health
  • 100% natural & European grown
Ready? Choose your preference:
And variant:
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  • 71% of our regular customers immediately opted for a subscription (up to 24% cheaper per month & incl. free storage jar)
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  • Order before 23:00, shipped the same business day
  • Free shipping from £50

Plankton is a mix of four micro- and macroalgae to supplement your diet. Full of minerals, pigments, vitamins, fiber, and protein. It can help with:

  1. Energy: vitamin B12 and iodine contribute to a normal energy-yielding metabolism
  2. Gut: calcium contributes to the normal function of digestive enzymes.
  3. Skin: iodine contributes to the maintenance of normal skin.
We recommend a maintenance dose of 2 grams (4 capsules) per day, as a supplement to a varied diet and a healthy lifestyle.

Ingredients

Chlorella sorokiniana, Limnospira platensis (spirulina), Lithothamnium calcareum, Undaria pinnatifida (wakame), HPMC capsule

Nutrition

Nutrient Amount % RI
Calcium 123 mg 15
Iodine 56.2 µg 37
Phycocyanin 70 mg —
Chlorophyll 10 mg —
B12 0.84 μg 33
  • Order before 23:00, shipped the same business day
  • Shipping £5.95 · free from £50

Delivery issues? Contact us here and we'll help you as soon as possible.

30 day money back guarantee. Less than 1% of our customers use our guarantee.
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Reviews

What others think of Plankton

  • I really notice the positive impact

    I've regularly used supplements and noticed little difference... until I started using these algae. I genuinely feel the positive impact of this supplement! Thanks!

    Anne October 12, 2024

  • I have confidence in it

    I haven't been using it for that long, but I'm confident it's good for me. I try to live healthily, but I often don't succeed because of all the temptations in the supermarket. I'm happy with it and will keep using it for the rest of my life.

    Kathe July 14, 2024

  • Many nutrients

    Many nutrients from a sustainable source. My gut and I are happy.

    Jesse G. June 23, 2024

  • Addition of plankton is beneficial

    Because I'm over 60 and unwisely work many night shifts, my body needs good nutrients to minimize degeneration. I think the addition of plankton contributes well to this. Am I sure this is the case? No... Do I feel good? Yes...

    Nicodoki September 11, 2024

  • Very happy with it

    Very happy with it. VEGAN POWER

    Bento S. June 15, 2025

  • High-quality product

    High-quality product, I notice it in my well-being. Previously bought cheap spirulina pills, but they had no noticeable effect.

    Leen Z. June 3, 2025

  • Great stuff!

    Great stuff! I really feel better since I started using this.

    Klaas May 31, 2025
Comparison

Not your standard supplement

We believe that you can get all nutrients from nature, without synthetic additives or unnecessary processing.

plankton
plankton
Others
Others
Synthetically manufactured
Ingredients from whole foods
Produced in the EU and 100% traceable
100% plant-based & natural
Sustainably grown, better for the planet

Frequently Asked Questions

If you're looking for a natural way to support your daily health, Plankton is for you!

While everyone is unique, our bodies require many of the same essential nutrients. Plankton provides an easy, daily supplement for your overall health. It is packed with minerals, vitamins, antioxidants, fiber, and protein, all of which contribute to a healthy lifestyle.

Plankton stands out due to its unparalleled nutritional density. With just 2 grams a day, you'll already notice a difference.

Furthermore, the natural origin of these four micro- and macroalgae is what makes plankton unique. While other supplements are often synthetic and contain excessively high dosages, plankton is 100% natural and plant-based, without synthetic additives.

The perfect, naturally balanced addition to a healthy and varied diet.

Of course, nothing is a must! We do recommend a maintenance dose of 2 grams (4 capsules) per day as a supplement to a varied diet and a healthy lifestyle.

The capsules are made of HPMC (hypromellose), a plant-based polysaccharide known for being easily digestible.

As far as is known, our algae are free from allergens.

However, the product may contain traces of fish, crustaceans and shellfish because the algae mix contains two types of seaweed.

Plankton is safe for children. For children up to 10 years old, we recommend 2 capsules per day due to the higher iodine content.

For pregnant and breastfeeding women, we recommend discussing this with your doctor first.

Algae are rich in nutrients and require few resources to grow. They convert CO₂ into oxygen and valuable biomass, thus forming a sustainable food source.

The recommended dosage (2 grams, 4 capsules) contains approximately 60% of the daily recommended amount of iodine. Consult your doctor (or general practitioner) if you have a thyroid condition.

Chlorella sorokiniana, Arthrospira platensis (Spirulina), Lithothamnium calcareum, Undaria pinnatifida (Wakame). Capsule: HPMC capsule.

Yes, plankton capsules can be combined with omega-3 supplements. Adjust your total intake to your personal needs.

You can manage your Plnktn subscription by logging in via this link.

In your account, you can easily adjust your delivery frequency, change the order date, adjust the number of people, add/remove subscription products, update your payment method, and cancel your subscription. In other words: you can manage everything yourself!

When you place your first subscription order, you pay directly via your chosen payment method. For subsequent deliveries, you don't have to do anything: payment will be automatically debited via direct debit on the day your order is processed.

You probably haven't created a plnktn account yet. It's possible to have a subscription without having an account. Don't worry!

You can easily create an account via this link. After that, you can log in and manage your account.

Still not working? Please feel free to contact us. It could be that you're using the wrong email address or that there's a typo in your email address. We're happy to help you!

Yes, you can, as long as your order has not yet been shipped. In that case, please contact our support as soon as possible. Has your order already been shipped? Then we will, of course, be happy to help you find a suitable solution.

Of course, we hope you're happy with your order! However, we understand that there may sometimes be reasons why you want to return a product.

If you are not completely satisfied, you can return your order within 14 days of receipt via this link. If this doesn't work, please contact our support team and we will be happy to help you. We always want to ensure you are satisfied!

Yes, you certainly can! A plnktn subscription is always flexible. Once you've subscribed, you can create an account via https://www.plnktn.com/account/login.

In your account, you can easily adjust your delivery frequency, change the order date, adjust the number of people, add/remove subscription products, update your payment method, and cancel your subscription. In other words: you can manage everything yourself!

It's really annoying when your package is delayed! Delivery services have a protocol in place where they have 5 business days after the last scan to still deliver the package.

If your package still hasn't been delivered after these 5 business days, please feel free to contact our support. We'll be happy to help you and find a suitable solution right away :)

Yes, single orders are possible worldwide (shipping costs vary by country).Subscriptions are currently only possible from the Netherlands, Belgium, Germany, and the United Kingdom.

With a plnktn subscription, you benefit from convenience, flexibility, and a great price:

  • 15% discount on every order
  • Free violet glass storage jar with the first delivery of a double subscription
  • Always in stock: you'll never run out of your favorite algae products again
  • No need to stay home: from the 2nd order onwards, your packages fit through the letterbox
  • Full control: postpone or cancel your orders whenever you want

The plnktn subscription is perfect for anyone who wants to achieve the best results with regular use, without any hassle.