For listing creation of private label, how many bullet points ?

You can go with as low as 1 bullet point & as high as 10 bullet points, generally, it is good to go with 5 or 6 bullet points, as this strikes a perfect balance between, information and more clean-looking content.

When customers click through to your page, bullet points assist them in making a purchase decision.
The more your private label goods satisfies their needs and wants, the more probable it is that they will purchase. So try to use minimum 5 bullet points which relevant to your product.

I would recommended to go for at least 5 you can also add lower than it and also more than it.

You have option to upload at least 10 bullet point, But I will recommend you to go with 5 bullet points.

its better to go with specific details only, and add 4-5 bullet points only.

You have the opportunity to upload at least 10 bullet points, however I will advise you to stick with 5.

I recommend that you include 5 bullet points with 500 characters per bullet point, as recommended by Amazon.

At least 5 bullet points you can also add lower than it and also more than it up to 10.