what if you have a dry penis, what products would you recommend to moisturize it? and what products should i avoid using that may cause problems/ irritate it
Dry penile skin comes from what it is in contact with.
Main problems are simply down to contact with soap and things like shower gel and other forms of body wash in shower / bath
Think about what is in contact with your penis - even Lubes, baby oil / lotion - water for washing is the best thing to clean with, then make sure no moisture remains on your penis.
Get yourself some Liquid Coconut Oil that is for use on skin, not hair, apply a very fine coating to your penile skin - best do this after you have dried yourself after a shower