Alka® Spermidine

Alkaline spermidine complex

4.9/5 (120 reviews)

Bought for my memory

I am in my early 60s and wanted something to support my mental sharpness. I now use it daily with a glass of water.

- Theo de Haas | 05-11-2025 -

verified

Alka® Spermidine is an alkaline spermidine complex with white chlorella, B vitamins, and zinc. White chlorella is known for its high levels of spermidine. It’s no coincidence that numerous studies have focused on spermidine. Experience the benefits of this unique alkaline product for yourself!

Cell protection¹
Good for memory¹
Helps the immune system¹
Get fit again²

¹ zinc ² vitamin B12

Product id	AV502
Product category	Specials
Product slogan	Experiencing recovery through autophagy
Product generieke naam	Alkaline spermidine complex
Product alternate name	Alkaline spermidine complex, spermidine capsules, high-dose spermidine, spermidine 1.3 mg, spermidine complex, cellular recovery
Google Shopping Category	525
Google Shopping Description	Alka® Spermidine is an alkaline spermidine complex with white chlorella, B vitamins, and zinc. White chlorella is known for its high levels of spermidine. It’s no coincidence that numerous studies have focused on spermidine. Experience the benefits of this unique alkaline product for yourself! - Cell protection - Good for memory - Helps the immune system - Get fit again
Google Shopping Lifestyle image	https://www.alka.nl/media/uploads/Product%20images/EN/Alka%20Spermidine/Alka-Spermidine-alkaline-spermidine-complex-2.jpg
Product highlight	Advanced spermidine complex with chlorella, B-vitamins and zinc – supports cellular health and regeneration.

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	60 capsules	€29.95

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€29.95 per piecepcs

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-6% €28.25 per piecepcs

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9.2 / 10
Rated by 17,831 customers.

454 people bought this item in the past week.

In stock. Ordered before 16:30 = delivered tomorrow!

Also available at our Alka resellers

Product information

What is Alka® Spermidine?

Alka® Spermidine is an alkaline spermidine complex that combines spermidine from white chlorella with active B vitamins and zinc. This unique, gluten-free formula delivers a high dose of 1.3 mg of spermidine per capsule.

Spermidine is a valuable substance that the body naturally produces and is also found in various foods. What sets this alkaline spermidine complex apart is its ability to operate at the cellular level, where it protects cells¹. This cellular protection is essential, as cells are the foundation of your body.

Alka Spermidine provides significant support at cellular level, positively impacting the immune system, enhancing memory, and contributing to overall fitness.

In recent years, spermidine has garnered substantial attention due to its unique properties. More than 14,400 official studies have now been devoted to it, underlining the enormous potential of spermidine for your body.

Interesting fact: NASA uses chlorella as a food source for astronauts, deeming it one of the most nutritious options available.

Why Alka® Spermidine?

Alka® Spermidine is a high-quality formula containing specially cultivated chlorella algae. This means that each capsule contains at least 1.3 mg of spermidine.

Helps protect healthy body cells¹

Good for memory and concentration¹

Contributes to extra energy in case of fatigue²

Supports the immune system¹

Contributes to a healthy acid-base balance¹

¹ Zink, ² Vitamine B12

Usage advice

How to use Alka® Spermidine
The recommended dosage is 1 capsule twice daily with meals. If necessary, you can take 2 capsules twice daily.

Important information about using Alka® Spermidine
Do not exceed the recommended dosage. Dietary supplements are not a substitute for a varied diet. Keep out of reach of young children. Store in a dry place at room temperature.

Ingredients

Ingredients
Chlorella vulgaris
Vitamins
Vegetable capsule (hydroxypropyl methylcellulose)
Zinc citrate

Free from
Gluten, colorants, animal ingredients

Content
60 VegaCapsules

Active ingredients

Vitamins, Minerals & More	Per 2 capsules	RI*	Per 4 capsules	RI*
Spermidine (from chlorella)	2,6 mg	-	5,2 mg	-
Vitamin B1 (thiamine HCI)	0,22 mg	20%	0,44 mg	40%
Vitamin B2 (riboflavin sodium phosphate)	0,28 mg	20%	0,56 mg	40%
Vitamin B3 (niacinamide)	3,2 mg	20%	6,4 mg	40%
Vitamin B5 (calcium pantothenate)	1,2 mg	20%	2,4 mg	40%
Vitamin B6 (pyridoxal-5-phosphate)	0,28 mg	20%	0,56 mg	40%
Biotin	10 mcg	20%	20 mcg	40%
Folic acid (calcium methyltetrahydrofolate)	40 mcg	20%	80 mcg	40%
Vitamin B12 (methylcobalamin, adenosylcobalamin)	0,5 mcg	20%	1 mcg	40%
Zinc (zinc citrate)	1,5 mg	15%	3 mg	30%

RI*=Reference Intake

Frequently asked questions

Spermidine stimulates a vital process in your body called autophagy, which is the natural ability to clean up cells and remove waste products.

Spermidine supplements containing more than 6 mg of spermidine are often synthetic. If trihydrochloride is listed, then you are also dealing with the synthetic form.

Spermidine was first discovered in semen, which is how it got its name.

You can definitely use this spermidine based on specially cultivated chlorella, as it is gluten-free.

Studies show that supplementation with spermidine derived from plant or algae extracts, such as wheat germ or chlorella, is safe. The safe upper limit for spermidine supplements has been set at 6 mg per day. If you are pregnant, taking medication, or have medical complaints, consult your doctor before starting spermidine supplementation.

It isn't easy to get spermidine from food every day, because you don't eat foods with a high dose of spermidine every day. In addition, due to soil depletion (in non-organic agriculture), the nutrient content, including spermidine levels, in our food has significantly decreased.

What others say about Alka® Spermidine

Bought for my memory

I am in my early 60s and wanted something to support my mental sharpness. I now use it daily with a glass of water.

- Theo de Haas | 05-11-2025 -

verified

New favorite supplement

Never heard of spermidine before. Now I don't want to live without it. Compact, effective, and feels great.

- Yasmin Q. | 03-11-2025 -

verified

Notice it on busy workdays

Use it at the office. I feel like I stay sharper even at the end of the day.

- Erik van Driel | 14-10-2025 -

verified

No nonsense, just good.

Pure product without additives. That's exactly what I'm looking for in everything I take. I'll order again soon.

- Sanne de Reuver | 06-10-2025 -

verified

Use it together with Alka Greens.

Nice combination. I feel good about the idea of supporting my cells from the inside out with this.

- N. Arslan | 30-09-2025 -

Good for my rhythm

I feel that my energy levels throughout the day are more consistent. Not suddenly hyper, but just stable.

- Mireille T. | 21-09-2025 -

verified

Slikt makkelijk

Capsules are not too big, no odor or aftertaste. I've been using them for a few weeks now and will continue.

- Rashid El Idrissi | 17-09-2025 -

Natural and thoughtful

Great that the spermidine comes from chlorella. No chemical nonsense. Also nice that it contains zinc and B12.

- J. Brouwer | 13-09-2025 -

verified

Versatile supplement

I was looking for something that supports more than just energy. Spermidine sounds unique, and I feel more stable since I started using it.

- Layla M. | 09-09-2025 -

verified

Part of my morning routine

Since I started with these capsules, I've noticed that I start my day feeling fresher. They are easy to take and give me confidence in my health.

- Stefan R. | 05-09-2025 -

Interesting supplement

Hadn't heard of spermidine before, but now it's a staple for me. Great that it comes from chlorella and not synthetic products.

- O. Bakker | 21-08-2025 -

verified

My memory seems clearer.

I can't prove it, but I forget less and that feels good.

- Emine | 17-08-2025 -

verified

good supplement

I am happy with it!

- Ann B. | 11-08-2025 -

verified

Works well in combination with B12.

Using it for my B12 deficiency and I feel that my concentration is somewhat improved.

- T. Jafari | 08-08-2025 -

verified

A recommendation for 40+

I notice that at my age, I could use some extra support. This fits perfectly.

- Carla van der Meulen | 07-08-2025 -

verified

Works better than expected

Had high expectations, but my energy levels are more stable throughout the day.

- L. Vermeulen | 06-08-2025 -

verified

Better focus on work

Using it for 5 weeks now. I notice that I feel clearer in my head and complete tasks more easily.

- Iris K. | 04-08-2025 -

verified

Just a good supplement

No strange side effects, easy to take, and I feel more stable in terms of energy.

- Y. Petrova | 03-08-2025 -

No difference (yet)

I've been taking it for 2 weeks but haven't noticed anything yet. I will keep trying because I've heard good things about it.

- Pascal | 01-08-2025 -

verified

Fits a healthy lifestyle

Take it together with Alka Minerals and I'm really happy with it.

- Lucía | 30-07-2025 -

verified

Beautiful composition

The combination of zinc and B vitamins is impressive. It's nice that it's natural and pure.

- Chloé N. | 26-07-2025 -

verified

Supports my recovery

Use it alongside my *** therapy and feel like I'm getting fit again more quickly. I'm not sure if it's solely due to this, but I will continue taking it.

- Koen V. | 24-07-2025 -

Perfect for stress

During busy times, I feel less overwhelmed. I'm not sure if it's entirely due to this, but it definitely helps.

- Monique | 19-07-2025 -

verified

Subtle improvement in focus

As an entrepreneur, I have a lot on my mind. This helps me stay calmer and more focused.

- Ricardo M. | 16-07-2025 -

More energy after the afternoon

I usually feel sluggish after lunch. Now I stay sharper and feel less drowsy in the afternoon.

- Soufyan | 13-07-2025 -

verified

Works subtly but noticeably

Not something you notice right away, but after a few weeks I feel more energetic and clearer. No side effects experienced.

- A. E. Jansen | 12-07-2025 -

verified

Nice that it's basic.

I use all Alka products and this fits in nicely. I truly believe in the acid-base support.

- Tanja | 09-07-2025 -

verified

Nice that it is plant-based.

As a vegan, I'm happy with a gluten-free, plant-based formula. It feels light for my body.

- Sanne de Bruin | 28-06-2025 -

verified

Easy to take along

Use this at the office, capsules are convenient and small. No smell or taste. Feels high quality.

- B. de Wilde | 25-06-2025 -

verified

Very well tolerated

I often experience stomach or intestinal issues with supplements, but these capsules are working well for me. No complaints.

- Sven D. | 17-06-2025 -

verified

It’s not allowed to make health claims in a review. If needed, we will replace such claims with (***).

Alka® Spermidine

Alkaline spermidine complex

Bought for my memory

Product information

What is Alka® Spermidine?

Why Alka® Spermidine?

Usage advice

Ingredients

Active ingredients

Frequently asked questions

What does spermidine do?

How can I recognize the synthetic form of spermidine, which is banned in Europe, on the label?

How was spermidine discovered?

I have a gluten allergy. Can I take spermidine supplements?

Are there any risks associated with taking spermidine supplements?

Why should I take a spermidine supplement if I can also get it from food?

What others say about Alka® Spermidine

Bought for my memory

New favorite supplement

Notice it on busy workdays

No nonsense, just good.

Use it together with Alka Greens.

Good for my rhythm

Slikt makkelijk

Natural and thoughtful

Versatile supplement

Part of my morning routine

Interesting supplement

My memory seems clearer.

good supplement

Works well in combination with B12.

A recommendation for 40+

Works better than expected

Better focus on work

Just a good supplement

No difference (yet)

Fits a healthy lifestyle

Beautiful composition

Supports my recovery

Perfect for stress

Subtle improvement in focus

More energy after the afternoon

Works subtly but noticeably

Nice that it's basic.

Nice that it is plant-based.

Easy to take along

Very well tolerated

Often bought together with

Alka® Tea

The most delicious alkaline herbal tea

Alka® Drops

Drops for alkaline drinking water

Alka® Greens

Alkaline food extracts in powder form

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