1st question: What is your age?
2nd question: What is your basis for your circumcision at birth damaged your penis sensitivity?
3rd question: do you watch ���� regularly?
The Ring of Power • Ball Zinger • Blackoe Ring • Zinger ROP • Galvanic Ring have been around since the 1950's and are all based on pseudo-science, no real studies on their claims of Testostrone boosting or increase blood circulation. If they actually worked, doctors would be prescribing them to patients.
Libido is not primarily based on the sensitivity of your penis. You don't need to be touched to get an erection, thoughts alone will do it. It has more to do with brain function, learned behavior, and hormones,.
Taking supplements to increase blood circulation is good, but you need more than just take a pill or two daily... exercise, to get the blood actually moving.
Increase your exercise activity with Kegals and Reverse Kegals. That will incease blood flow to the penile area.
If low-libido still persist, stop doing arm-chair diagnosis and seek professional assistance and get some blood work done.