Frontline dogs or cats

does anyone know the difference between frontline for cats and frontline for dogs? Is it the same chemical make up or is it the same?
My problem is I just saw a flea on my knee(ewww gross) and I looked on both Luther and Dale neither have any, so I don't know where it came from, but I don't want them to have any. So I looked in the closet and we have some frontline, but the problem is I can't tell if it is for dogs or cats.
I guess I'll have to buy some more and look at it to decide which types these are.
Let me know if anyone knows the difference

 

the dosage for cats is usually small.
I know with Advantage the tubes I have are small

 

I feel so stupid! I thought (just by looking at them) the dog was the cat one and the cat was the dog one, and I looked it up online. Feline frontline has 9.8%methoprane and 11.8% something else, the dog one is 9.8% and 8.8% I never would have hought the cat one was stronger!
So anyway, I opened up the outside plastic, and the actual container thing said frontline for dogs (and then feline frontline)
Thanks!!

 

:lol:

I didn't think of it being to do with the ingredients either!

I know the amount is different and in laziness I just hole the pippet up to the light when I'm Frontlining my mob, and Floob gets the most.