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Zylkene Calming Supplement for Cats and Dogs Up to 10kg - 100 Capsules By Zylkene

Product Summary

Zylkene 75mg is a calming supplement for cats and small dogs (up to 10kg) to help them cope with short-term challenging situations such as loud noises or social gatherings. It contains a natural milk protein with clinically proven calming effects and is widely trusted by vets as the UK’s No.1 veterinary calming supplement*.

Perfect for short-term use, Zylkene helps support your pet’s emotional wellbeing during stressful moments like fireworks, travel, vet visits, kennel stays, or changes in environment. Simply open the capsule and sprinkle onto food for fuss-free administration.

Zylkene is a complementary feeding stuff for dogs and cats and not a veterinary medicine.

UK’s No.1 Veterinary Calming Supplement*, widely used and trusted by vets.
A clinically proven calming complementary feed to relax pets during short-term challenging situations.
Contains a natural milk protein (alpha-casozepine) with scientifically supported calming effects.
Easy to administer — open the capsule and mix the powder with your pet’s food, ideal for fussy eaters.
Suitable for cats and small dogs up to 10kg.
Powder (77.3%): Maltodextrin, Casein (Trypsin hydrolysed bovine casein), Magnesium stearate.
Capsule (22.7%): Bovine skin gelatine.
(As provided by manufacturer)
Crude protein, crude fat, crude ash, moisture and fibre values included within powder and capsule components.
Short-term use: Begin 1–2 days before the predicted stressful event or environmental change.

Longer-term use: Use for 1 month, then reassess behaviour and continue if needed.

The recommended daily amount should be given in one intake. The capsule can be opened and the powder mixed with food.

Daily Amount (Cats & Small Dogs up to 10kg):

⦁ Up to 5kg body weight = 1 capsule per day

⦁ 5–10kg body weight = 2 capsules per day


Always ensure clean, fresh drinking water is available.
Store in a cool, dry place. Keep out of sight and reach of children.

Ratings & Reviews

10 reviews

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15/7/2025 11:22:00 AM

Great for vet visits

by Zoe King -

Now I give her this before the vet and she is much more cooperative and less fearful.

19/7/2025 7:40:00 PM

Highly recommend

by Yasmin Jackson -

A very effective and gentle natural supplement for anxious or stressed small pets.

11/7/2025 11:22:00 AM

Slow initial results

by Xavier Harris -

It took a few weeks of consistent use before I really started to see the full calming effects.

3/7/2025 5:54:00 PM

Non drowsy relief

by Willow Green -

It provides calmness without any sedation or lethargy which is perfect for her.

12/9/2025 9:35:00 PM

Perfect for small dogs

by Uma Evans -

This formula and dosage is perfect for my little Cavalier King Charles Spaniel.

30/9/2025 12:19:00 PM

Excellent bulk value

by Victor Foster -

The 100 capsule bottle is very good value for money especially for daily long term use.

14/8/2025 4:16:00 PM

Noticeably calmer cat

by Tilly Davies -

She is much more relaxed and less likely to hide away from visitors since starting this.

14/10/2025 12:00:00 PM

Good for multi cat household

by Sam Wilson -

It has helped reduce the low level tension and occasional squabbles between my two cats.

29/6/2025 3:14:00 PM

Easy for cats to take

by Rachel Taylor -

I sprinkle the powder onto her morning food and she eats it right up No need to force a tablet.

23/10/2025 7:22:00 PM

Great for travel stress

by Quincy Scott -

I give this to my cat before car journeys and it makes a huge difference to her stress levels.