Yes, kittens can have catnip, but it's important to consider their age before introducing it to them. Catnip is a member of the mint family and contains a compound called nepetalactone, which can have a strong effect on cats.

Most kittens don't develop a reaction to catnip until they are around 3 to 6 months old. This is because they need to reach sexual maturity before they can fully respond to the nepetalactone. Before this age, catnip may have little to no effect on them.

Once your kitten reaches the appropriate age, you can start introducing them to catnip in moderation. It's a good idea to start with small amounts and observe their reaction. Some kittens may become more playful, while others may become more relaxed or even sleepy.

It's important to note that not all cats are affected by catnip. Sensitivity to catnip is an inherited trait, and approximately 50-75% of cats have a positive reaction to it. If your kitten doesn't show any interest or reaction to catnip, don't be alarmed. It's perfectly normal.

When introducing catnip to your kitten, you can use different forms such as dried catnip leaves, catnip sprays, or catnip-infused toys. You can sprinkle a small amount of dried catnip on a scratching post or use a catnip-filled toy to engage your kitten in play.

Remember to use catnip in moderation. Excessive exposure to catnip can lead to overstimulation or even digestive issues. It's recommended to limit the frequency of catnip exposure to once or twice a week.

In conclusion, kittens can have catnip, but it's essential to consider their age and individual sensitivity. Introduce catnip to your kitten when they are around 3 to 6 months old and observe their reaction. Use catnip in moderation and provide a variety of forms for your kitten to enjoy.