You can sell any product on Instagram from your account. What kind of product you will sell from your account it depends on your wish.

there is no restriction. For this, people sell product according to their followers. You can also sell any kind of product from your account. If you want to increase your sell then of course you should know your followers. You should know what type of product like your followers. For example, suppose your follower want to buy computers accessories but if you post an add of beauty product. Then your followers will not buy your product but if you can promote your computer accessories then your followers will buy from your account. So I think you can understand easily that what type of product you should promote from your account.

Is there any restriction to sell product?
No, because all companies want to sell their product at any anyways.

Thank you