No, a 3 month old puppy should not wear a Seresto collar. The Seresto collar is designed for dogs and puppies 7 weeks of age and older, and weighing over 18 pounds. Puppies under this age may not have had all their vaccinations yet and would therefore be at risk from the active ingredients in the collar. It is important that puppies wait to begin wearing flea/tick protection until they are at least 7 weeks old and loaded up with their vaccinations to prevent any illnesses or allergic reactions. In addition, it is essential that the puppy has had its proper heartworm prevention before beginning to use a Seresto collar or any other flea/tick prevention method.
Make sure the weight of your 3 month old puppy fits the collar size
When purchasing a Seresto collar for your 3 month old puppy, it is essential to make sure the weight of your puppy fits the size of the collar. For puppies under 18 lbs., you’ll want to purchase an extra-small size Seresto collar. You can measure your pup’s neck with a soft measuring tape or even use string and then measure it with a ruler afterwards. Puppies that weigh 18 to 55 lbs will need a small size collar, while those over 55 lbs will need a large size.
It’s also important to remember that puppies below 8 weeks are too young for the Seresto collar to be effective. And always read over the manufacturer’s instructions before using any flea and tick preventive product on your pet.
For safety reasons, never fit more than one Seresto collar per pet, as this could pose a health risk. If you’re not sure which size is best for your pup, consult your veterinarian – they’ll be able to help you select the perfect Seresto collar for them and guide you through proper installation techniques.
Choose an appropriate concentration strength for your puppy’s weight
When choosing a Seresto collar for your puppy, make sure to purchase the correct concentration strength based on its weight. To be safe, don’t use a collar with a concentration that is higher than what your puppy’s weight calls for.
For puppies up to 18 lbs., use the Seresto seresto-collar.com Puppy Collar with 8% imidacloprid and 4.5% flumethrin. This combination of active ingredients works specifically for flea and tick protection for puppies. For puppies 18 lbs.-89 lbs., use the regular strength 8-Month Seresto Collar with 10% imidacloprid and 5% flumethrin. Finally, for puppies over 89 lbs., use the extra strength Seresto Collar with 10% imidacloprid and 10% flumethrin.
Make sure to choose an appropriate concentration of the active ingredients so that it is effective at providing protection but not too powerful that it may be uncomfortable or even dangerous for your puppy!
Follow all labeling instructions
When using a Seresto collar with your 3 month old puppy, it’s important to follow all labeling instructions to ensure safe and effective use. Some of the key things to keep in mind include:
-Always read and follow the label before use.
-The Seresto collar is intended for dogs and puppies aged 8 weeks and older; never use the product on cats.
-No more than one collar should be worn at a time by each dog or puppy.
-Be sure to adjust the size of the collar as necessary so that it fits your pet snugly but isn’t too tight or too loose.
Putting all together
You can use a Seresto collar on your 3 month old puppy but it is always important to speak with a veterinarian before introducing any flea or tick prevention product to ensure they advise this the best choice of action.

