> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sonohealth.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Ultrasound Gel for Home Fetal Dopplers: What to Use

> Why ultrasound gel is essential for a home fetal doppler, what type to use, what to avoid, and where to buy more. A simple guide to getting a clear signal.

Ultrasound gel is the unsung hero of home doppler use. Without it, even a high-quality device won't pick up your baby's heartbeat. This short guide covers what gel does, what to use, and what to avoid.

## Why do I need gel at all?

Gel removes the thin layer of air between the probe and your skin so the ultrasound waves can pass through cleanly. Air is a poor conductor of these waves, so without gel the signal scatters and you hear little or nothing. The [HeartBeats™ Fetal Doppler](/fetal-doppler/overview) includes ultrasound gel to get you started, and our [how to use](/fetal-doppler/how-to-use) page shows how to apply it.

## What kind of gel should I use?

Use standard **water-based ultrasound gel** — the same type clinics use. It is inexpensive, widely available online and at pharmacies, hypoallergenic for most people, and wipes off easily. Apply a generous amount directly to your lower abdomen for the best contact.

## What should I avoid?

* **Lotions and creams** — they transmit the signal poorly.
* **Oils and petroleum jelly** — they conduct badly and can degrade the probe over time.
* In a pinch, a clear **water-based** lubricant or aloe vera gel can work, but purpose-made ultrasound gel performs best.

## Where can I buy more?

Refill bottles of water-based ultrasound gel are easy to find online and at most pharmacies, often sold in 8 oz bottles. Any clear, water-based ultrasound transmission gel will work with the HeartBeats.

## How do I clean up afterward?

Wipe your skin with a tissue or warm cloth, then clean the probe with a soft, slightly damp cloth and dry it. Never submerge the device — the probe is water-resistant, not waterproof. See our [troubleshooting](/fetal-doppler/troubleshooting) page if the signal is weak even with gel.

<Note>
  Plenty of gel and patience are the two biggest factors in finding the heartbeat, especially before 14 weeks. A home doppler is for reassurance and bonding only and is not a substitute for prenatal care.
</Note>

<Warning>
  If you cannot find the heartbeat after 16 weeks, or you notice reduced fetal movement, contact your healthcare provider rather than relying on the doppler.
</Warning>

**Related:** [How to Use](/fetal-doppler/how-to-use) · [Troubleshooting](/fetal-doppler/troubleshooting) · [How to Tell Your Heartbeat from Baby's](/fetal-doppler/maternal-vs-fetal-heartbeat)