Merlo's Best Smile Competition

Every month, Merlo (our Cavapoo and Chief Smile Officer) picks his favourite pet smile. The winner gets a Petsmile Duo Kit in the flavour of their choice, and their photo is featured on our Instagram and Facebook.

How to enter

  1. Take a photo of your dog or cat smiling (or doing their best impression of one).
  2. Post it on Instagram or Facebook with #PetdentistSmile and tag @petdentist, or post it in the comments of our monthly Best Smile post.
  3. Tell us your pet's name. That's it: no purchase needed.

Terms and conditions

  1. Promoter: Pet Dentist L.L.C-FZ, Meydan Free Zone, Dubai, UAE (trading as Petdentist®). Contact: info@petdentist.co.uk.
  2. Who can enter: UK residents aged 18 or over. Employees of the promoter and their households cannot enter.
  3. Free entry: No purchase necessary. One entry per person per month; additional entries from the same person are ignored.
  4. Dates: Each month's competition opens on the 1st (the first round opens on 18 November 2026) and closes at 23:59 UK time on the last day of the month. Late entries are not counted.
  5. Your photo: It must be your own photo of your own pet, must not show anyone else without their permission, and must not show a pet in distress or being handled unsafely.
  6. Judging: One winner per month is chosen by the Petdentist team (with Merlo's casting vote) for the smile that makes us happiest. This is a judged competition, not a random draw. The judges' decision is final.
  7. Prize: One Petsmile Duo Kit (Petsmile pet toothpaste in a flavour of the winner's choice, subject to stock, plus a bamboo toothbrush and case), delivered free to a UK address. No cash alternative. If the prize becomes unavailable, we may substitute a prize of equal or greater value.
  8. Winner: We will contact the winner by direct message within 7 days of the closing date and announce them on our social channels. If the winner does not reply with a UK delivery address within 14 days, we may choose another winner.
  9. Use of your photo: By entering you give Petdentist permission to repost your photo, with credit to your username, on Petdentist social channels and website. We will ask before using it in any paid advertising.
  10. Data: We use your details only to run the competition and deliver the prize, in line with our privacy policy.
  11. Platforms: This competition is not sponsored, endorsed or administered by, or associated with, Instagram, Facebook or Meta.
  12. We may amend or cancel the competition if circumstances outside our reasonable control require it.

Petdentist® products are for daily hygiene and routine care of healthy pets and are not veterinary medicines. If you're worried about your pet's mouth, please see your vet.

Customer Reviews

Overall rating: 4.9 / 5 from 202 reviews.

Customer photo review of Petsmile Professional Pet Toothpaste (Rotisserie Chicken Flavour)

Have ordered this item many times from Pet Dentist. Always quick delivery and a reasonable price.

Petsmile Professional Pet Toothpaste (Rotisserie Chicken Flavour)

Store owner replied: Dear Donna, Thank you for your kind review and for being a loyal customer of PetDentist. We’re delighted to hear that you appreciate our quick delivery and reasonable prices for the Petsmiles toothpaste. Your support means a lot to us, and we look forward to serving you again soon! Best regards, Deepak Songra The PetDentist Team

Customer video review of Petsmile Professional Pet Toothpaste

My cat loves the toothpaste more than he likes the toothbrush, however since the chicken flavor isn’t that strong my other cat (who usually eats anything) doesn’t like it, so I suggest putting more flavoring into the toothpaste or mixing it with a treat. Also the customer service is great 😊

Petsmile Professional Pet Toothpaste

Store owner replied: Hi SUMMEYAH, Thank you for your review and video. That is great. I appreciate your feedback and will relay it to the US manufacturer. I'm happy you are brushing your beautiful cat's teeth! Well done.

Customer photo review of Petsmile Professional Pet Toothpaste

Second time I’ve ordered from Pet Dentist and had the same quick delivery as before. Highly recommended.

Petsmile Professional Pet Toothpaste

Store owner replied: Hi Donna, Thank you for your comments . Really appreciated! Glad your furry friend is enjoying teeth cleaning time.

This is truly the best pet toothpaste. The only one recognised by the VOC. I was surprised to receive a bill for the tax on this product when I was ordering within Europe. Maybe I missed something in the small print so the product ended up being VERY expensive.

Petsmile Professional Pet Toothpaste (Rotisserie Chicken Flavour)

Only been using the toothpaste for a few days but think I am already seeing a difference, Rosie's breath isn't as bad as it once was, hopefully it will continue to get better. So far very happy.

Petsmile Professional Pet Toothpaste (Say Cheese Flavour)

My chihuahua had to have a lot of teeth taken out. I wanted the remaining teeth to be well looked after. This toothpaste is brilliant, her teeth are clean and her breath is good. I also use mouthwash and plaque off and make sure none of her treats have sugar. I got her when she was 6 and think the damage to her teeth had already been done

Petsmile Professional Pet Toothpaste (London Broil Flavour)

Our little former street dog is very picky and on top has been very sceptical with dental care products in the past, but with this one we have been able to brush every day so far. So: thank you!

Petsmile Professional Pet Toothpaste (London Broil Flavour)

I've used this since 2022 for my pomeranian who was having tummy troubles (constipation, food intolerance, diarrhea, wind). Pro's - What I love about this product is that it's palatable for the fussiest of dogs, and it's enriched with so many other vitamins and nutrients, it isn't bulked with unnecessary fillers. Lots of nature's ingredients. Con's - plastic! This product contains clay, which should never be contained in plastic or metal, due to its absorbing properties. Also, plastic! It's horrible for the environment, even if recycled ♻️ plastic can only be recycled once.... Price, from my first use it has increased to three times as much! Unfortunately, my budget doesn't stretch that far, no matter how much I like the product.

High Fibre Probiotics for Cats & Dogs

A tentative 4 stars as we have only been using the toothpaste for possibly 10 to 12 days. It could make a 5. However, I saw my vet at the start of the week, and she checked my old dog's dreadful teeth, and she remarked that the tartar was soft. I have noticed that the tips of his canines are beginning to show some white. Both of my dogs' breath has improved, and they both like the toothpaste, so I am HOPEFUL. My old chap can't be put out for the vets to clean them due to heart disease.

Petsmile Professional Pet Toothpaste (Rotisserie Chicken Flavour)

My chihuahua likes this & will accept it by licking it off my little finger. After a week of regular use I can see a difference in her teeth already. They are whiter & her breath is now fresh. I shall continue to give her the Petsmile toothpaste as delighted with the results so far.

Petsmile Professional Pet Toothpaste (Rotisserie Chicken Flavour)

Expensive but effective. I brush both my dogs teeth daily with Petsmile and, beside a bit of mild staining, their teeth are in perfect condition.

Petsmile Professional Pet Toothpaste (London Broil Flavour)

Store owner replied: Thank you Kirra! Appreciate the feedback and review. Keep up the good work! Best wishes, Deepak Songra Petdentist

This toothpaste is amazing. I wish I had taken a "before" picture of both my dogs teeth. I've been using the toothpaste for a few weeks daily and can see a massive difference. It's a whole lot cheaper than expensive vet dental treatment. Highly recommend

Petsmile Professional Pet Toothpaste (Rotisserie Chicken Flavour)

Store owner replied: Thank you Yvonne. Appreciate the feedback. I am glad the toothpaste has helped ! it is great and works so effectively!

Petsmile is definitely the best toothpaste for your dog. I wouldnt use any other now. It really is so good and my dog loves the taste

Petsmile Professional Pet Toothpaste (London Broil Flavour)

Store owner replied: Thank you, Lynne, Which is great to hear and glad your dog really enjoys the taste and brushing routine!

I can't say that my cats like the flavor. They do not dislike it, however it cannot be used as a treat or reward after pilling, like another toothpaste… Hopefully it does help keep my cats' teeth clean!

Petsmile Professional Pet Toothpaste (Say Cheese Flavour)

Great product. One of only a couple approved by the VOHC. Cat likes the taste and keeping his teeth perfect. His breath is perfect as well.

Petsmile Professional Pet Toothpaste (London Broil Flavour)

Store owner replied: Hi Robin, Thanks for the feedback. Appreciated. Great product and very effective.

Great toothpaste, my dos love it. Makes teeth brushing so much easier

Petsmile Professional Pet Toothpaste

Store owner replied: Hi Alison, Thank you for your feedback and review. That is greatly appreciated. We are so pleased your dog enjoys their brushing routine with this Petsmile toothpaste. Keep up the good work!