
VetOne CrossBlock II for Dogs & Cats
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- Description
- Ingredients
- Directions
- Reviews
Description
CrossBlock II is a topical flea treatment for dogs that kills adult fleas as well as their eggs and larvae. It contains imidacloprid and pyriproxyfen, and start killing fleas within 2 hours and continues to work for 1 full month of protection. CrossBlock also prevents re-infestation of fleas by breaking the life cycle and preventing fleas from reproducing. Waterproof formula with easy open, individual dose applicators. For dogs and puppies 7 weeks of age or older weighing at least 3 lbs.
- Kills adult fleas and prevents further re-infestation on cats
- Kills re-infestation fleas within 2 hours
- Breaks the flea life cycle and prevents flea eggs and larvae from developing into adult fleas
- Waterproof after application
- Effective for one month
Ingredients
Key Ingredients:
Directions
Direction For Use:
Dogs
- Ensure your dog is standing and has dry skin.
- Part the hair and apply the entire contents of the applicator evenly to three spots along the back, from the shoulder blades to the base of the tail.
- Avoid applying an excessive amount at any one spot to prevent runoff.
Cats
- Ensure your cat is standing and has dry skin.
- Part the hair and apply the entire contents of the applicator directly to the skin at the base of the skull.
- Avoid superficial application to the cat's hair.
Reviews
Review Summary
5.0
1 Reviews
5
100% (1)
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100% Recommend this product (1 of 1 responses)
By Ann
Reading< PA
crossblock ll
December 11, 2022
I will get this again. I just tried it on 4 cats and have found it to be very effective. It has a pleasant scent and the cats didn't run away after the application like they did after using Frontline which has a harsh chemical smell.The applicator is a lot easier to open and use. I highly recommend this product.


