1. Home /
  2. dog and cat nutrition

Happi-Tails Supplement for Dogs

90 tablets, 1 + month supply
 (153 Read Reviews)
£9.95
  • Expertly formulated to support the reduction of anxiety in dogs
  • With a powerful blend of nutrients known to promote calm
  • Delicious-tasting and easy to administer
  • Expertly formulated to support the reduction of anxiety in dogs
  • With a powerful blend of nutrients known to promote calm
  • Delicious-tasting and easy to administer
Product ID: 196
quantity
Free Delivery FREE DELIVERY on UK orders over £20.. Read more
  • Product Information

  • Like humans, dogs can experience anxiety now and then. Pets can feel stressed by changes to their routine and environment, or storms, fireworks, and travel. We’ve expertly formulated Happi-Tails to support your pet’s wellbeing and promote a sense of calm in times of need.

    Happi-Tails contain safe but relevant levels of the B vitamins, as well as magnesium, to support the normal function of the nervous system. The inclusion of passionflower, lemon balm, and L-tryptophan, meanwhile, are well-known for their calming properties.

    Pets love the taste of our dog calming tablets. Coated in a delicious beef and liver flavour, simply add whole or crumble into food and mix well.

    Happi-Tails is made in UK factories working to Good Manufacturing Practice (GMP) to meet our strict quality standards.

    Still unsure if our dog calming tablets are the right choice? Don’t worry. Our team of expert Nutrition Advisors is here to help.

    Read about our diet tips for dogs here.

  • Daily Intake
  • Directions for use for dogs (daily):

    Small dog 0-10kg - 1.5 tablets
    Medium dog 10-25kg - 2 tablets
    Large / Extra Large dog 25kg+ - 2 tablets

    For best results tablets should be added whole or crumbled into moist food and then mixed in well.
    A bowl of fresh water should always be available. Do not exceed recommended daily intake.
  • Formula
  • Typically per tablet
    Thiamine (Mononitrate) (Vitamin B1)0.15mg
    Riboflavin (Vitamin B2)0.35mg
    Niacin (Nicotinamide) (Vitamin B3)0.6mg
    Vitamin B6 (Pyridoxine Hydrochloride)0.05mg
    Pantothenic Acid (Calcium Pantothenate) (Vitamin B5)0.55mg
    Magnesium20mg
  • Ingredients
  • Composition:
    Calcium Carbonate, Microcrystalline Cellulose, Brewer’s Yeast, Beef Flavoured, L-Tryptophan (3.6%),Silicon Dioxide, Stearic Acid, Magnesium Stearate, Passionflower Extract (0.45%), Lemon Balm Extract (0.36%).

    Analytical Constituents (%):
    Protein 8.51, Crude Fibre 12, Fat Content 1.9, Crude Ash 46.6, Moisture 4.
  • Cautions/Allergies
  • For animal use only. This product is for intermittent or supplemental feeding only. Always consult your vet before making changesto your pet’s diet. The Brewer’s Yeast ingredient contains gluten.
  • Reviews (153)
  • "Gently effective. "
    By Tracey Gower , 18 Feb 2026
    Verified Purchase
    I tried this with my teenage male labrador, like many adolescent he can be anxious, and struggles with big emotions at time. I realised after a couple of weeks on Happi tails he was more settled at home, finding easier to concentrate when training, and regulating his emotional responses better. I''m a dog trainer, I tried this as my usual go to product in these cases was out of stock. This will now be my go to. It''s better value and more effective. It''s not perfect, for that it would include gut support, but still good enough for five stars
    Recommend to a friend: Yes
    "Good results"
    By Philip Dance , 03 Nov 2025
    Verified Purchase
    These help my dachshund who is very sensitive to situations. She is much more relaxed since taking these tablets.
    Recommend to a friend: Yes
    "It realy works"
    By Marjorie Johnson , 18 May 2025
    Verified Purchase
    I have used this product on my hyper but anxious Boxer for about 4 years, I do notice a difference if I stop giving them to him, it does not sedate him but calms him, well recommended
    Recommend to a friend: Yes
    "Best product I have come across "
    By Sue Colley , 20 Mar 2025
    Verified Purchase
    It’s a lovely gentle relaxing product for my girl ,no d***s but natural way to help her settle
    Recommend to a friend: Yes
    "Very helpful for buster "
    By Ingrid Latham , 17 Mar 2025
    Verified Purchase
    Anxiety and stress.. Buster is a rescue pup and has had terrible trauma from first 8 months of his life..
    I have found this product helps to calm him down a little more..
    Recommend to a friend: Yes
  • Frequently Asked Questions (1)
  • Q - "How Many Dog Calming Tablets Should My Pet Have?"
    A - Directions for use for dogs (daily):

    Small dog 0-10kg - 1.5 tablets
    Medium dog 10-25kg - 2 tablets
    Large / Extra Large dog 25kg+ - 2 tablets

    For best results, tablets should be added whole or crumbled into moist food and then mixed in well. A bowl of fresh water should always be available. Do not exceed recommended daily intake.