Judson Brandeis MD explaining nitric oxide, sildenafil and erectile health research involving AFFIRM
26 August, 2026

Nitric Oxide and Erectile Health: What Men Taking Sildenafil Should Know

Nitric oxide plays a key role in blood flow and erectile function, while sildenafil helps...

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Man reviewing sexual health tracking data on a phone app next to AFFIRM nitric oxide supplement bottle and FirmTech TechRing
12 August, 2026

What Is the FirmTech TechRing? How At-Home Erection Tracking Works (and Why Urologists Recommend It)

Most men have never seen objective data on their own erectile health. The FirmTech TechRing...

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