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Wellness technology companies are Increased interest in bodily fluids Such as blood, urine, sweat, and saliva. At CES 2026, it’s time to add menstrual blood to that list, too. Health tech startup Vivoo has announced the FlowPad, a menstrual pad that costs about $4 to $5 that can be used as a home hormone test for follicle-stimulating hormone (FSH). Users will either be able to view the results directly from the board or take a photo using the Vivoo app to get more ideas.
“We started as a vaginal pH-tracking liner for panties that would change color with vaginal discharge,” says Mireille Taivon, CEO and co-founder of Vivoo. Edge. “It’s evolved into a menstrual pad with microfluidic channels that capture blood, and underneath the pad, there’s a window that shows your FSH levels.”
The benefit of incorporating hormone testing into the pad is that it’s a sanitary product that menstruating people are already using, Taifon says. But the challenge is that blood tends to dry quickly. Tayfun explains that in other home blood tests, users often have to dilute the sample with a solution. To incorporate this type of testing into the panel, Vivoo had to replicate this process in a thin but wearable design.
The pillow itself consists of two layers. One is the “capillary capture layer” that draws in blood and filters out particles. The second “biomarker interaction layer” contains stabilized reagents that react with blood to detect FSH. So, basically, you go about your day, bleed into the pad, and when it’s time to switch, show your results. The results appear on the back of the board in the window area, which you can see in the image above. It’s like a pregnancy test or a COVID-19 test. High levels of FSH It can indicate low ovarian reserves, fertility problems, or conditions such as polycystic ovary syndrome (PCOS).
“The main goal here is to make one pad under $5, so a period won’t cost you more than $30,” says Tyvon, noting that the Vivoo team was aware of how expensive sanitary products can be. “It doesn’t have to be productive forever.”
While someone He could Use pads every day of your cycle, says Tyvon, and they’re supposed to be worn on the second or third day. Depending on what the user is looking for, it can be worn for a few months at a time or on and off. So far, Vivoo estimates the price at $4 to $5 per panel, with subscription and bundle configurations possible when the product is closer to launch. Initially, Typhoon says the company will provide access to researchers, medical partners and existing Vivoo users.
The idea is for menstruating women to learn something from their FSH levels, which can be an indicator of fertility levels, irregular cycles, and hormonal patterns. This may be useful for people hoping to become pregnant, treating hormonal conditions such as polycystic ovary syndrome, or those who suspect they may be entering perimenopause, the transitional period between a person’s fertile years and menopause. The ideal user is someone between the ages of 30 and about 45, Tayfun says.