Matched before-and-after photos can show changes in skin appearance or abdominal shape. On their own, they can’t prove fat loss or tell you whether the belt caused the change. Consider INIA PULSE if you want red light, EMS, heat, and vibration in one cordless belt.
Table of Contents
How to read before-and-after photos
Say the abdomen looks flatter in the after photo, but the person is standing straighter. Compare two side views taken at the same camera height and distance, with the abdomen relaxed in both. If the person posed differently in the two photos, it’s hard to tell how much of the difference comes from posture.
Check the lighting, especially if you’re comparing how noticeable a stretch mark is. If waist size is what matters to you, look for waist measurements taken at the same spot before and after. If you’re taking your own photos, record both the photo setup and the tape position so you can repeat them.
What did a red light belt study measure?
Kim and colleagues measured abdominal circumference directly to see whether waist size changed. In their 2017 study, they assigned 28 women ages 50 to 65 to two groups without randomization. Both groups walked on a treadmill three times a week for 12 weeks, with one group wearing an active red and near-infrared LED belt and the other wearing the same belt with the lights off. Kim et al., study methods
Average abdominal circumference fell by about 4.5 cm in the active-belt group and by about 0.4 cm in the inactive-belt group. The groups were small and started with different average measurements. The study used a specific belt during treadmill walking, so its numbers don’t tell you what will happen with INIA PULSE or with a belt worn while sitting at home. Kim et al., Table 1
When a seller shares before-and-after waist measurements alongside photos, look for the dates and where the tape was placed. Those details tell you whether the two readings were taken in a way that lets you compare them. Even if the second measurement is smaller, the readings alone can’t tell you what caused the change.
When does INIA PULSE fit your goal?
Once you know what a photo or measurement can tell you, ask whether you’d still use the belt if your appearance stayed the same. Start with the functions you want in a session. INIA PULSE combines red and near-infrared light, electrical muscle stimulation (EMS), adjustable heat, and vibration in a cordless abdominal wrap.
The cordless design lets you fit a session into your routine without staying near an outlet. INIA lists four presets, three heat levels, and five EMS intensity levels in supported modes, so you can choose a preset and adjust the available settings for comfort. If you’re buying mainly to lose belly fat or inches, the study and before-and-after photos give you too little evidence to expect that outcome from PULSE. PULSE product FAQ · FDA guidance on EMS
A practical at-home PULSE routine
1. Record a baseline before the first session. For skin appearance, take a close-up and a wider photo with even lighting, filters off, and your abdomen relaxed. If waist size matters to you, wrap a flexible tape around your waist halfway between your lowest rib and the top of your hip bone, keeping the tape level, then record the reading after a normal exhale. AAD photo guidance · NICE waist measurement guidance
2. Set up the belt for the session you want. Check the guide for placement, precautions, and which features the preset activates. If your chosen mode uses EMS, INIA directs you to lightly moisten the electrodes and abdominal skin with water and begin at the lowest intensity. INIA first-session guide
3. Follow the device schedule. The default PULSE session lasts 10 minutes, after which the device enters standby mode. Follow the product instructions for how often to use the belt, and note the preset you chose and how it felt so you can decide whether the routine fits your day. PULSE product FAQ
4. Repeat your baseline checks at your next check-in. Repeat the photos with the same lighting, camera distance, and posture, or repeat the tape reading at the same spot and time of day. Record any other changes in your routine and decide whether the features you use are worth the time, even if the comparison looks the same.
At your check-in, you might see a change in your close-up while the tape reading stays the same. Keep those results separate in your notes, along with any warmth or muscle contractions you felt during the session. That gives you a clearer basis for deciding whether to continue.
Bottom Line
Use matched photos for appearance and a tape measure for waist size. Consider INIA PULSE if you want its combination of light, EMS, heat, and vibration in a cordless routine you can follow comfortably.
Frequently asked questions
How long does it take to see a visible change?
The study measured participants again after 12 weeks of treadmill walking with a belt. It didn’t establish a timeline for visible changes with a home belt, so use your check-in date to review your photos or measurements.
What if my abdomen looks different but my waist measures the same?
Keep both observations. The photo captures appearance from one angle, and the tape captures circumference at one location, so the two records can tell you different things.
Can I use INIA PULSE for light alone?
INIA’s public FAQ lists four presets and adjustable settings. If light-only use matters to you, ask INIA or consult the mode guide before buying to find out which features can run independently. INIA first-session guide
References
- Kim S, Kim Y, Lee G, Kim J. (2017). Does treadmill walking with near-infrared light applied to the abdominal area reduce local adiposity and body weight? Journal of Physical Therapy Science, 29(10), 1753–1756.
- American Academy of Dermatology. How to take pictures of your skin for your dermatologist.
- National Institute for Health and Care Excellence. Guidance on measuring waist circumference.
- U.S. Food and Drug Administration. Electronic muscle stimulators.
- INIA. PULSE product page and FAQ.
- INIA. First-session guide.

