There is no established dose for silvervine, and quantity is the wrong thing to worry about. Cats self-limit, so the variable that actually matters is frequency: offer it for a short session, then put it away. Constant access does not harm a cat, it just stops working.
Why there is no dose
Silvervine is a toy, not a supplement, so nobody has established a milligram figure the way they would for a medicine. A cat interacts with the scent, decides it has had enough, and stops. That self-limiting behaviour is why measuring is beside the point.
What a session actually looks like
- Five to fifteen minutes of active interest is typical: rolling, rubbing the face and chin, drooling, carrying it about.
- Then it stops. Most cats disengage on their own and often go to sleep.
- A refractory period follows. Offering it again immediately usually gets a flat response. Something in the region of half an hour to a couple of hours before they are interested again is normal.
How often
Every few days is a reasonable rhythm for most cats, and it keeps the response strong. There is nothing dangerous about daily use, but you will notice the enthusiasm fading, which is a poor trade for no benefit.
The rule that actually matters: put it away
This is the single most useful habit. A silvervine toy left permanently on the floor becomes part of the furniture, and the cat stops registering it. Kept in a drawer and produced deliberately, the same object stays interesting for months. It is the same principle behind why cats get bored of toys so fast: novelty is doing most of the work.
Refreshing an old one
If a pressed ball or gall stops getting a reaction, it has usually just lost surface scent. Rolling it firmly between your fingers, or scratching the surface lightly, brings more to the top. That is usually enough to bring a tired toy back for another few weeks.
Signs you are overdoing it
Not danger signs, mostly diminishing returns:
- Sniffing it and walking away, when the cat used to react
- Shorter sessions than they used to be
- No interest at all despite a previously reliable response
The fix in each case is a break of a week or two, not a different product.
When it is not the dose
If your cat has never reacted, frequency is not your problem. Around a third of cats do not respond to catnip and a smaller share do not respond to silvervine either, and kittens under six months typically show nothing. Far more often though, it is the form rather than the amount. On safety specifically, we have a separate honest write-up.
Our version
The Matatabi Ball is one pressed ball of natural silvervine, about 3 cm across. One is a session. Put it back in the drawer afterwards and it will keep giving you sessions for a long time.