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Cat Supplements & Vitamins

Need to boost your kitty’s diet and wellbeing? Shop the full edit of OnBuy’s cat supplements and cat vitamins below and find a tailor-made solution to deliver the full range of vitamins, minerals and nutrients they need. Serve up a storm!

Showing 1-60 of 83 results

Oralade Nutrition & Hydration RF Support For Cats 330ml.

(3) £6.69 After Cashback £6.52 Fast & Free Delivery£0.17 Instant Cashback

Easypill Cat Putty - 4 X 10 Gram Individually Wrapped Pill Pockets For Cats.

(3) £10.59 After Cashback £10.33 PopularFast & Free Delivery£0.26 Instant Cashback

Kaminox Liquid Nutritional Supplement For Cats 120ml. £34.79 After Cashback £34.44 Fast & Free Delivery£0.35 Instant Cashback

Viyo Recuperation Cat 150ml (1 unit). £11.19 After Cashback £10.91 Fast & Free Delivery£0.28 Instant Cashback

YuMOVE Cat | Joint Supplement for Cats, with Glucosamine, Chondroitin, Green Lipped Mussel, All Ages and Breeds | 60 Capsules

(2) £42.00 After Cashback £41.58 Fast & Free Delivery£0.42 Instant Cashback

VetIQ Ear Cleaner, 100ml, Dog Ear Cleaner Softens & Removes Wax, Dog Ear Hygiene, Non-Toxic Dog & Cat Ear Drops, Alcohol-Free Dog Ear Cleaner Solution £7.88 After Cashback £7.80 Fast & Free Delivery£0.08 Instant Cashback

Oralade GI Oral Rehydration Fluid Support Drink For Pets 500ml. £9.69 After Cashback £9.59 Fast & Free Delivery£0.10 Instant Cashback

Strong Vitamin C 1000mg (60 Tablets) Chewable Orange Flavour Immunity. £6.39 After Cashback £6.33 Free Delivery£0.06 Instant Cashback

Vitamin C 1000mg (90 Tablets) Orange Flavour, Chewable, UK (V). £8.39 After Cashback £7.97 Free Delivery£0.42 Instant Cashback

Kaminox Liquid Nutritional Supplement For Cats 60ml. £23.59 After Cashback £23.35 Fast & Free Delivery£0.24 Instant Cashback

Multiple Options Available (Double Strength; Dogs, 400ml x 3) Vitapet R-A Joint Formula

(16) From £45.76 After Cashback £45.30 Fast & Free Delivery£0.46 Instant Cashback

Vitamin C (Orange Flavour Chewable) 1000mg - 180 Tablets (V) Immunity. £13.49 After Cashback £13.36 Free Delivery£0.13 Instant Cashback

Jvp Dog & Cat Evening Primrose Oil 60's £5.75 After Cashback £5.69 Fast & Free Delivery£0.06 Instant Cashback

Protexin - Pro-Kolin for dogs and cats - Probiotic paste to support the gut 15ml + Syringe £15.75 After Cashback £15.59 Fast & Free Delivery£0.16 Instant Cashback

Vitamin C 1000mg (30 Tablets) Orange Flavour, Chewable, UK (V). £3.79 After Cashback £3.75 Free Delivery£0.04 Instant Cashback

Multiple Options Available (Double Strength; Dogs, 400ml) Vitapet R-A Joint Formula

(16) From £18.48 After Cashback £18.30 Fast & Free Delivery£0.18 Instant Cashback

Feliway Classic 30 Day Starter Kit Diffuser and Refill, 48ml £36.41 After Cashback £36.05 Free Priority Delivery£0.36 Instant Cashback

Vets Best Multi-System Support Supplement Gel for Cats £9.31 After Cashback £9.22 +£2.99 Delivery£0.09 Instant Cashback

120 Tablets - Vitamin C 1000mg (Chewable Orange Flavour) Immunity (V). £10.29 After Cashback £10.19 Free Delivery£0.10 Instant Cashback

Yuderm Moulting Cat 50 £15.55 After Cashback £15.39 +£2.99 Delivery£0.16 Instant Cashback

Healthy Hounds Scottish Salmon Oil for Dogs Cats & other Pets - 2500ml - Dog Fish Oil Supplements with Omega 3 - Supports Joints, Hip & Brai £89.99 After Cashback £89.09 Free Delivery£0.90 Instant Cashback

Billion Pets - Hemp Oil for Dogs Cats - Made In USA - Max Potency - Calming Drops For Dogs - Omega 3, 6, 9 £25.87 Save 8% £23.80 After Cashback £23.56 Free Delivery£0.24 Instant Cashback

Pet Naturals of Vermont, L-Lysine, For Cats, Chicken Liver Flavour, 250 mg, 60 Chews £13.33 After Cashback £13.20 Fast & Free Delivery£0.13 Instant Cashback

Yumove Cat 60 Tablets £24.87 After Cashback £24.62 Free Delivery£0.25 Instant Cashback

Billion Pets - Hemp Oil for Dogs Cats - Made In USA - Max Potency - Calming Drops For Dogs - Omega 3, 6, 9 £12.69 After Cashback £12.56 Free Delivery£0.13 Instant Cashback

I Drop Vet Plus Eye Lubricant - Multidose Bottle - 10 Ml. £46.38 Save 8% £42.67 After Cashback £42.24 Free Delivery£0.43 Instant Cashback

Cat Aerosol Inhaler Spacer Chamber To Help With Breathing for Feline with Asthma 2 Sizes of Mask, Will Fit all Cats and Small to Mediu Asthma or COPD £28.92 After Cashback £28.63 Fast & Free Delivery£0.29 Instant Cashback

Catly Wound Care I 100 ml I For Healthy and Happy Cats I Cat and other Pets healing and antibacterial spray I Control skin health of your pet I Altern. £16.20 After Cashback £16.04 Fast & Free Delivery£0.16 Instant Cashback

VetIQ Nutri-Vit Plus Cat Paste 70g. £8.96 After Cashback £8.87 Fast & Free Delivery£0.09 Instant Cashback

Pet Wellbeing Life Gold for Cats - Natural Cancer Support for Felines - 2 oz (59 ml) £55.78 After Cashback £55.22 +£2.99 Delivery£0.56 Instant Cashback

iRestore Vitamins Hair Gummies -Vegan Biotin Gummies £60.00 After Cashback £59.40 Free Delivery£0.60 Instant Cashback

Cat Aerosol Inhaler Spacer Chamber To Help With Breathing for Feline with Asthma 2 Sizes of Mask, Will Fit all Cats and Small to Mediu Asthma or COPD. £40.48 After Cashback £40.08 Fast & Free Delivery£0.40 Instant Cashback

Brewer's Yeast 250g Pure for Dogs, Cats and Pets - With Vitamin B, E & H, For Healthy Skin and Shiny Coats. £22.55 After Cashback £22.32 Fast & Free Delivery£0.23 Instant Cashback

BUGALUGS Plaque Off Remover For Cats 70g Teeth & Bad Breath 100% Natural | Plaque Off Cats No Need For Cat Toothbrush or Cat Toothpaste. £11.99 After Cashback £11.87 Free Priority Delivery£0.12 Instant Cashback

Healthy Gums for Dogs & Cats - Vet-Formulated - Healthy Gums & Teeth, Gingivitis, Fresh Breath - Natural Herbal Topical 4 oz (118 ml). £153.72 After Cashback £152.18 Fast & Free Delivery£1.54 Instant Cashback

Pawise First Aid Kit for Pets Dog, Cat Indoor/Outdoor Use - 130x210 cm. £34.19 After Cashback £33.85 +£2.99 Delivery£0.34 Instant Cashback

Trachea Cough Elixir - 59 ml (2 fl oz) - Natural Herbal Remedy for Symptoms of Collapsed Trachea - Tastes Good - Easy to Administer - based in. £66.58 After Cashback £65.91 Fast & Free Delivery£0.67 Instant Cashback

PDSA Vet Care Stiff Joint Support Aid Supplement for Cats 60 Capsules. £29.39 After Cashback £29.10 Fast & Free Delivery£0.29 Instant Cashback

Beaphar Top 10 Cat Multi-Vitamins Tablets (180 pcs), Promote Vitality & Strengthen. £68.00 Save 50% £34.00 After Cashback £33.66 Free Delivery£0.34 Instant Cashback

Vetoquinol Flexadin Advanced Cat Joint Supplement x 30 Chews. £31.59 After Cashback £31.27 Fast & Free Delivery£0.32 Instant Cashback

Lung Gold for Cats - Vet-Formulated - Lung & Respiratory Immune Support, Open Airways, Easy Breathing - Natural Herbal Supplement 2 oz (59 ml). £74.05 After Cashback £73.31 Fast & Free Delivery£0.74 Instant Cashback

Viyo Renafelin Nutritional Supplement For Cats 150ml x 4. £30.59 After Cashback £30.28 Fast & Free Delivery£0.31 Instant Cashback

Net Tex Clear Antiseptic Septiclense Spray, 500 ml. £12.39 After Cashback £12.27 Fast & Free Delivery£0.12 Instant Cashback

Ectoprotex cat - Spot On for cats, Tick protection & parasite repellent, Long lasting repellent for ticks, fleas, mites, Effective protection against. £28.00 After Cashback £27.72 Fast & Free Delivery£0.28 Instant Cashback

BM Tone-Up Gold for Cats - Vet-Formulated - Diarrhea & Loose or Runny Stools - Natural Herbal Supplement 2 oz (59 ml). £65.42 After Cashback £64.77 Fast & Free Delivery£0.65 Instant Cashback

Multiple Options Available (1 x 250ml) KittyRade Isotonic Fluid Support Drink for Pet Cats 250ml. From £9.69 After Cashback £9.59 Fast & Free Delivery£0.10 Instant Cashback

Multiple Options Available (3 x 250ml) KittyRade Isotonic Fluid Support Drink for Pet Cats 250ml. From £13.99 After Cashback £13.85 Fast & Free Delivery£0.14 Instant Cashback

Multiple Options Available (10 x 250ml) KittyRade Isotonic Fluid Support Drink for Pet Cats 250ml. From £37.59 After Cashback £37.21 Fast & Free Delivery£0.38 Instant Cashback

Purina Veterinary Diet Feline Hydra Care 85g x 10. £11.19 After Cashback £11.08 Fast & Free Delivery£0.11 Instant Cashback

Aktivait Nutritional Supplement For Brain & Nervous System Cats 60 Capsules. £40.19 After Cashback £39.79 Fast & Free Delivery£0.40 Instant Cashback

Centrum ON 30 tabletek. £9.99 After Cashback £9.89 +£4.99 Delivery£0.10 Instant Cashback

(1 Tub) ProDen PlaqueOff Powder - 180g | Pet Plaque Remover. £39.09 After Cashback £38.70 Fast & Free Delivery£0.39 Instant Cashback

(300 Pack, May Vary) Feliway Cystease Cat Tablets. £82.99 After Cashback £82.16 Fast & Free Delivery£0.83 Instant Cashback

Beaphar Cat Top 10 Multi-vitamin 180 Tablets. £9.79 After Cashback £9.69 Fast & Free Delivery£0.10 Instant Cashback

Optixcare L-Lysine Chews Pack 60. £16.69 After Cashback £16.52 Fast & Free Delivery£0.17 Instant Cashback

Enisyl-F Oral Paste For Cats 100ml. £32.99 After Cashback £32.66 Fast & Free Delivery£0.33 Instant Cashback

Katalax for Cats & Kittens Eliminates Hairballs & Furballs 20g Tube Supplement. £31.29 After Cashback £30.98 Fast & Free Delivery£0.31 Instant Cashback

Broadreach Nature + URINARY, CYSTITIS AND CALMING Supplement for Cats - AWARD WINNING PRODUCT! - Natural Ingredients - Advanced UK Veterinary.... £33.83 After Cashback £33.49 Fast & Free Delivery£0.34 Instant Cashback

Gwf Joint Aid For Cats 250g. £13.99 After Cashback £13.85 Fast & Free Delivery£0.14 Instant Cashback

Our highest rated cat supplements & vitamins

Oralade Nutrition & Hydration RF Support For Cats 330ml

This was first given by the vet to try and get more fluids down our cat, The cat enjoyed it that much that I thought I'd get another for him and sure enough it's now gone. The product once opened will...

(Double Strength; Dogs, 400ml x 3) Vitapet R-A Joint Formula

I worked for Seven Seas who produce this product! It’s fantastic for dog mobility and could not recommend its efficacy enough! A TOP product that’s underrated ⭐️ ⭐️⭐️⭐️⭐️

YuMOVE Cat | Joint Supplement for Cats, with Glucosamine, Chondroitin, Green Lipped Mussel, All Ages and Breeds | 60 Capsules

Onbuy always do a good price for this product, quick delivery and great product, it's the cheapest I can find and it's really appreciated by my cat who feels great taking it!!

(Double Strength; Dogs, 400ml) Vitapet R-A Joint Formula

I've been using this product for my elderly dog for a couple of years with good results, so i was pleased to find a new supplier with good prices.

(Normal Strength; Dogs & Cats, 400ml) Vitapet R-A Joint Formula

This is brilliant I use to use it years ago I'm so glad you still do it it makes such a difference to my old dog

Easypill Cat Putty - 4 X 10 Gram Individually Wrapped Pill Pockets For Cats

I'm ecstatic with the above product my cat is really taking her meds so easily which will help her live longer as she is my world her meds are so important thankyou so much

Looking to buy Cat Supplements & Vitamins?

Keep your cat as healthy as possible with the bounty of vitamins for cats readily available at OnBuy! Full of enriching formulas and supplements for cats that will provide a perk to your pampered purr-machines, they're a great way to enhance your cat's food!

On the hunt for a specific vitamin or nutrient? Here's you'll discover a range of cat vitamins with taurine, an essential amino acid that cats need for all sorts of functions like eyes, kidneys, heart and digestive system. Our natural cat supplements are brimming with health benefits that all furballs can benefit from - so don't hesitate to shop them now!