The Amethyst Legacy PEMF Mat 3618 combines all five of HealthyLine’s core therapies:

• PEMF pulsed electromagnetic field therapy
• Far Infrared (FIR) heat
• Heated Amethyst gemstones
• Negative Ions
• Photon (red) light therapy

These therapies are layered together to support muscle relaxation, circulation, grounding, and everyday comfort in a compact, mid-sized format.

The Amethyst Legacy 3618 is:

• A mid-sized mat that still includes all five core therapies
• Built with crushed Amethyst, creating a softer, more flexible construction that can be laid flat or gently wrapped around areas of the body
• Designed as one of our most affordable PEMF mats that still offers a complete, five-therapy experience

If you want full-therapy functionality without a full-length mat, the 3618 is a great sweet spot between targeted pads and large, bed-sized mats.

Amethyst 3618 is designed for regular use, and many people build them into a daily routine. A good starting protocol is:

Week 1:

• 3–4 sessions per week
• 20 minutes per session on low–medium heat with gentle PEMF settings
• Drink a full glass of water before and after your session

Week 2 and beyond:

• Work up to daily use if it feels comfortable
• 20–40 minutes per session
• You can split this into a shorter morning focus/activation session and a longer evening wind-down session

For best results:

• Allow about 20–25 minutes for the mat to fully heat up before your main session.
• Use the included cover or a thin blanket if you prefer a softer surface—it won’t affect performance.
• Take a moment after each session to notice how your body feels and adjust time, temperature, and PEMF intensity as needed.

Everyone’s comfort level is different, so listen to your body and increase gradually rather than pushing for long or intense sessions right away.

For a step-by-step guide by goal (relaxation, recovery, sleep, focus) and more expert tips, visit our Mat Journey page.

Yes. On the Amethyst 3618 you can typically control multiple therapies independently with the controller. For example, you can:

• Use FIR heat alone for soothing warmth
• Turn PEMF on or off as needed
• Use Photon (red) lights with or without heat and PEMF

Check your user guide for the exact controller layout, as settings and indicators may vary slightly.

The mat is designed for regular daily use. Many users:

• Start with 20–30 minutes once per day
• Gradually increase to longer or additional sessions as they feel comfortable

On models with PEMF, the system is generally designed to cycle 20 minutes on and 100 minutes off to help avoid overstimulating cells. Always begin with comfortable settings and build consistency over time.

You can fall asleep during a session, but because the 3618 is mid-sized and designed for targeted coverage, most people use it:

• For dedicated relaxation sessions before bed
• Under the spine, hips, or legs while lying down

If you intend to use it near bedtime:

• Keep heat on a lower setting
• Choose gentler PEMF settings or turn PEMF off for sleep
• Use the automatic shut-off timer so it powers down after a set period

Because it’s filled with crushed Amethyst, the mat will feel firmer than foam padding, even though it’s more flexible than solid-stone mats.

HealthyLine products are designed with safety in mind and include:

• Adjustable temperature controls
• An automatic shut-off timer
• High-quality, heat-resistant materials and EMF filtration

As with any device that uses heat, PEMF, or light, consult your healthcare professional before use if you have implanted medical devices, are pregnant, or have specific medical conditions. Always follow the user guide and begin with lower settings, increasing gradually as you get comfortable.

A small number of customers (less than 1%) may feel temporary discomfort when using PEMF or other electromagnetic therapies, such as mild headaches, fatigue, or increased sensitivity in areas of tension. If this happens, stop your session and let your body rest. When you’re ready to try again, use PEMF for no more than 20 minutes at a time on a lower frequency and intensity, and increase slowly only if you feel comfortable. If symptoms persist or you have specific health concerns, consult your healthcare provider before continuing use.

Yes, pets can benefit from these therapies, but start with lower settings and monitor their response. Always set the temperature below 104°F and make sure your pet can freely move off the mat or chair at any time.

 To clean your mat:

1. Turn it off and unplug it
2. Allow it to cool completely
3. Use a soft cloth lightly dampened with water to gently wipe the surface

This is the only recommended cleaning method. Do not use soap, alcohol, disinfectant wipes, sprays, solvents, or harsh cleaners, and never soak, spray, or submerge the mat in water. Let it dry completely before plugging it back in or using it again. Using a thin towel or cover on top can help keep the surface clean and extend the lifespan of your mat.

Yes. The Amethyst Legacy PEMF Mat 3618 is covered by a 90-day money-back guarantee, so you can integrate it into your routine and decide if it’s the right fit. If it doesn’t feel like a match, you can return it within the trial window under our standard return policy.

This product comes with a 5-year limited manufacturer’s warranty that covers defects in materials and workmanship under normal residential use. For full details on what is and isn’t covered, refer to our Warranty Policy page.

 If you’d like extra guidance, you can:

• Use our Find Your Mat Quiz to compare the 3618 with other models
• Reach out to our support team for personalized recommendations