It will be a bit sticky without an RX from a doctor. For example, if you go to a urologist, asking the urologist to evaluate potential scarring of the tunica or a penile skin condition requires testing, the urologist will ask you what you want to do. To protect themselves, they will ask you for your opinions and your plan of approach. They possibly want an agreement signature that they are not liable for subscribing to an RX for H100. This is the same for all doctors, actually.
Since H100 is recently been formulated by Hybrid Medical, but is distributed by PD Labs, there's only one direction you can go. RX in hand by the local clinic/doctor, or even doing telemedicine RX (contact Hybrid Medical and PD Labs for that info, since it's legitimate for the companies to work with patients and prescribers). I can't recall it correctly, but I read up on the use case for H100 back in 2022 when things first started. How far back the formulation research that was released to the public goes, I'm not certain.