Can you put retinol on your neck?

[ImperfectMamma]

I'm going to try it for the first time and have read conflicting advice about whether or not it should go on your neck. What does everybody else do? I've gone for the ordinary 2%

I use tretinoin on my neck, that's stronger than retinol and it's fine for me. Some people do react to it though, so I would go slowly