Product overview

Pure Zym

Accelerates the decomposition of plant residues

Find a store

Product information

Pure Zym is a soil improver based on natural enzymes. It promotes the accelerated breakdown of dead plant material. This causes additional nutrients that stimulate soil life to be released. Pure Zym also increases the ability to absorb oxygen.

Dosage and use

Shake well before use. Add 1 ml of Pure Zym per 1 litre of water (1:1000). Use this solution each time the plants are irrigated during the entire cultivation period.

Pure Zym is suitable for all substrates. 

ATTENTION: This product is not suitable for hydroponic cultivation methods, such as nutrient film technique (NFT), deep water culture (DWC) and aeroponics.


Stabilised enzyme solution.


100 ml, 250 ml, 500 ml & 1 L bottle and 5 L, 10 L & 20 L can.

Some sizes may not be available in all countries.

Yes, that’s possible. Enzymes do better in an organic environment. So Pure Zym is ideal for combining with Alga Grow and Alga Bloom.

No, this is normal and is not harmful for your plants. This is caused by the organic ingredients in Pure Zym. After the product has been dissolved in water, a natural bacterial process starts after a while. This causes the smell and can make your solution look cloudy. This does not have any adverse effects on your plants. If you have any questions about this, please contact us at

Pure Zym

Product video

The plant residues that break down near your root environment, create space for nutrient uptake.

Because the mixing ratio is 1:1000, Pure Zym is very easy to use.


Want to know where to buy this product? Or perhaps you’re looking for a custom schedule or just a helping hand? Our Tools have got you covered.

Grow Schedule Calculator


Product Selector

Grow topics

Grow knowledge: we've got plenty of it. We think these Grow topics may be of interest to you.

Do I need additives?

How can I improve soil quality for various soil textures?

Using excess plant material to re-use soil and improve soil fertility

Enzymes in Pure Zym as catalysts