Will DHT Blocking Shampoo Cause Penis Development Issues in a Teenager?

I am 17 years old and experiencing heavy signs of MPB, receding hairline, receding temples, Shedding and thinning. I understand that DHT is what causes hair loss in men, but DHT is also known to be the primary catalyst for penile growth. I am currently still growing (bones) and developing sexually (penis growth facial/pubic hair Etc).

My question is will DHT blocking shampoos block DHT in the body, specifically the DHT responsible for penis growth? Or do the shampoos only block DHT locally in the scalp? I don’t want this shampoo to interfere with DHT pathways and the metabolizing of testosterone into DHT (DHT attaching to androgen receptors etc).

I realize there are numerous factors that influence penile growth but I don’t want to hinder my penis growth at such an age, resulting in a less developed penis than what my genetic blueprint has set out for me. Thank your for your time, its highly appreciated.

The DHT shampoo i had in mind contains Ketoconazole DHT inhibitor, saw palmetto, emu oil, biotin & salicylic acid

DHT blocking shampoos probably don’t work to treat hair loss, and certainly not systemically. Some people claim that ketoconazole shampoo regrows hair, but it’s just a good antifungal treatment as far as I’m concerned.

Moreover, I don’t believe that these shampoos will impact the size of your penis. At 17 years old, you’ve likely completed puberty by now (or close to it).