Skip to main content
  • Home
  • Zylkene Plus Calming Supplement for Medium Dogs 10 to 30kg - 30 Capsules

Zylkene Plus Calming Supplement for Medium Dogs 10 to 30kg - 30 Capsules By Zylkene

30Reviews
Price per Pack

RRP £41.90

2 PacksBottomless Bowl£37.09Free Delivery-11%
2 PacksOne Time Purchase£37.09Free Delivery-11%
1 PackBottomless Bowl£38.09-9%
1 PackOne Time Purchase£38.09-9%

Subscribe & Save Time with Subscription

Learn more

✔ In Stock, Get it Wednesday
Order within 2 days 7hrs 54mins
Zylkene Plus 225mg is a complementary calming supplement designed for medium dogs weighing 10–30kg, helping them cope with prolonged or recurring challenging situations such as being home alone, adapting to new pets or moving house. This dual-action formula combines two naturally derived, clinically proven ingredients to support long-term emotional balance and relaxed behaviour inside and outside the home.
  • Supports emotional balance during prolonged or recurring challenging situations
  • Dual-action formula with two clinically proven calming ingredients
  • Helps maintain relaxed behaviour without sedation
  • Easy-to-administer capsules that can be opened and mixed with food
  • UK’s No.1 veterinary calming supplement, widely used and trusted by vets
Powder: Maltodextrin, casein (trypsin hydrolyzed bovine casein) 35.1%, fish proteins hydrolyzed 14.0%, magnesium stearate. Capsules: colouring agents.
Crude Protein 39%, Crude Fat 1.5%, Crude Ash 7.5%, Moisture 4.0%, Crude Fibre 4%.
For oral administration only. Give the full daily amount in one intake. The capsule can be opened and the powder mixed with food.

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

Recommended daily amount:
10–15kg bodyweight: 1 capsule daily
15–30kg bodyweight: 2 capsules daily

Always ensure clean, fresh drinking water is available.
Store at room temperature. Once opened, keep the container tightly closed and use within 90 days.

Ratings & Reviews

30 reviews

  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews
9/8/2025 3:40:00 PM

Highly pleased

by Rose Turner -

Great for reducing his general background worry and making him more receptive to training I highly recommend them

21/6/2025 5:03:00 PM

Reliable calm

by Stanley Ward -

This product consistently provides a gentle calming effect without making my active dog drowsy

31/8/2025 7:14:00 PM

Easy transition

by Quentin Smith -

Helped my new large rescue dog settle into the chaos of a busy family home He seems much more confident now

12/7/2025 4:14:00 PM

Good for recovery

by Patricia Reed -

Used this after surgery to keep my dog calm and settled during his rest period It worked wonderfully

11/9/2025 5:29:00 PM

Only a mild effect

by Oscar Quinn -

My Saint Bernard is still quite anxious around strangers despite using these for a few weeks Maybe they are better for noise fears

12/5/2025 8:59:00 AM

Worth the investment

by Natalie Price -

I was skeptical but the calming effect is real and it has improved my dog's quality of life immensely

5/8/2025 3:46:00 PM

Perfect dosage

by Miles Owens -

The strength is just right for a large breed dog I sprinkle it on her breakfast and she eats it right up

28/7/2025 8:25:00 AM

Recommended by trainer

by Laura Nelson -

My behaviorist suggested this plus formula and it's been a useful tool in his training program for reactivity

2/6/2025 10:43:00 AM

Brilliant for separation

by Joanna Lane -

My large dog's destructive behavior when left alone has reduced significantly since starting these capsules

8/10/2025 8:13:00 PM

Really takes the edge off

by Kenneth Marsh -

Great for my large Shepherd who gets overexcited and anxious at new environments Helps her settle down quickly

28/9/2025 11:34:00 AM

Great value pack

by Ian King -

Good amount of capsules for a month's supply and the effect is clearly positive for my medium sized pup

26/9/2025 10:05:00 AM

Highly satisfactory

by Holly Jarvis -

My dog is happier and less stressed and that makes me happy too Great natural product

1/7/2025 10:51:00 AM

Easy to hide

by Gareth Hunt -

I just slip the capsule into a piece of cheese and he takes it without noticing Very convenient

3/9/2025 10:43:00 AM

Settles well at night

by Eileen Finch -

He used to wake up frequently but is now sleeping through the night consistently since taking this supplement

19/5/2025 8:49:00 PM

Good product

by Dennis Eyre -

Helped my anxious Beagle a little but it didn't completely solve the problem Maybe a slightly better effect than the regular Zylkene

20/5/2025 8:32:00 AM

Works on big events

by Chloe Drew -

We use them primarily for fireworks and car travel and they definitely make him more relaxed and manageable

2/5/2025 8:33:00 AM

Very effective

by Zoe Allen -

My rescue mutt used to have severe separation anxiety but these capsules have helped manage it alongside training

1/5/2025 9:20:00 PM

Best calming aid

by Barry Cole -

Tried a few different supplements but this plus version for medium dogs is by far the most successful for my lab mix

24/10/2025 4:11:00 PM

Noticeable improvement

by Yannick Young -

Saw a positive change in my spaniel's general nervousness around people and noise after two weeks

20/5/2025 11:19:00 AM

Excellent for reactivity

by Wilma Xander -

My border collie is much less reactive on walks when she has these capsules daily Highly recommend the plus formula

20/9/2025 10:12:00 AM

Happy with purchase

by Victor Walsh -

My small dog used to whine constantly when left alone This has lessened significantly since starting these capsules

13/5/2025 12:34:00 PM

Reliable supplement

by Teresa Vance -

I trust this brand and the plus formula seems to be more effective than the regular one for my highly anxious dog

24/10/2025 8:48:00 PM

Worth the cost

by Scott Underwood -

This product is a little expensive but the benefits for my pet's happiness make it completely worth the investment

22/10/2025 9:28:00 PM

Positive results

by Rita Thompson -

Used it for a feral rescue cat and it's helped her settle into indoor life She is much less jumpy

9/9/2025 3:47:00 PM

Only slight improvement

by Quentin Shaw -

I think it helped marginally but my cat's behavioral issues are complex Might need to try a different approach