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Japanese Medical Certified Magnetic Necklace ULTRA NEO Max. 50cm (19.6") - Good for neck stiffness

150 Neodymium magnets work on chronic neck stiffness. A neodymium magnet has 10 times more power than a standard magnet. Magnetic power, which is emitted from 360 degrees around the necklace, thoroughly softens stiff muscles around the shoulders/neck.
 
P/N: ULTRA-NEO
US$331.52
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OptionsColor / Gift Wrapping
Masaharu Nemoto, Technical Supervisor & Quality Assurance, Ion Trading
Technical Supervisor & Quality Assurance
Masaharu Nemoto · Ion Trading (Universal Plan Co., Ltd.)

✓Made in Japan. With 30+ years verifying our products, I personally check the performance and technical details shown on this page.

Inquiry
2-Year Warranty

We repair the product or replace it with a new one. All products are covered for two years.

Delivery by DHL/FedEx

US/SG 1-3 · Asia 1-5 · EU 2-5 · AU/NZ 2-5 · Others 2-6 days (just FYI)



Color Variations

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Gold

Silver

Blue

Red

Grape
   

Other designs, materials and finished surfaces

Product summary
  • Magnetic power is emitted from anywhere on the necklace to soften stiff muscles around the shoulders/neck. A patented technology is used. 150 Neodymium magnets are arranged closely to each other along the full circle of the necklace.
  • It is safe to use this home use magnetic induction therapy apparatus made with permanent magnets as it is certified by the Japanese Ministry of Health, Labour and Welfare as a controlled medical device. You can enjoy effects produced by this genuine magnetic necklace.
  • 150 neodymium magnets soften stiff muscles around the shoulders/neck and improve blood circulation. A neodymium magnet has 10 times more power than a standard magnet.
  • The magnets will continue to work almost forever as they are covered with special tubing to prevent rusting.
  • It is easy to put on and take off and also easy to adjust the length as this necklace has no clasp
  • This lightweight necklace weighs 11g only, so it is comfortable to wear for long hours to thoroughly soften stiff muscles.
  • You can change the length/shape as you prefer.
  • Great gift for birhday/Father's/Mother's Day/Xmas. We offer a free wrapping service.

Please note: (1) We suggest you should take off when bathing or swimming to prevent deterioration. (2) We do not replace with a new one if the surface gets dirty as you use it.

Details

Magnetic power emitted from anywhere on the necklace

A patented technology is used. 150 powerful Neodymium magnets are arranged closely to each other along the full circle of the necklace.
The ULTRA NEO thoroughly softens stiff muscles around the shoulders/neck as magnetic power is emitted from 360 degrees around the necklace.
An advanced patented technology (*1) is used. 150 Neodymium magnets are arranged closely to each other along the full circle of the necklace. This is why this product performs far better than those which have a few magnets arranged sparsely.







*1 Japan Pat #4851780

Controlled medical device certified by the Japanese Ministry of Health, Labour and Welfare

Enjoy beneficial effects produced by this genuine magnetic necklace!
This necklace is a home use magnetic induction therapy apparatus made with permanent magnets. It is certified by the Japanese Ministry of Health, Labour and Welfare (*2)(*3) as a controlled medical device so it is safe to use it. You can enjoy effects produced by this genuine magnetic necklace.

(*2) Second-class license for marketing medical devices #13B2X00036 (*3) Medical device certified #226AGBZX00094000



Neodymium magnet - Over 10 times more powerful than a standard magnet

Soften stiff muscles around the shoulders/neck and improve blood circulation
The ULTRA NEO is made with 150 neodymium magnets. Each magnet has a maximum magnetic flux density of 80mT (=800G). A neodymium magnet is said to be the most powerful magnet.

A neodymium magnet has over 10 times more power than a standard ferrite magnet (*4), so it thoroughly softens stiff muscles around the shoulders/neck and improves blood circulation.

*4 Magnetic power varies



Covered with special tubing to prevent rusting for long-term use

The magnets continue to emit magnetic power almost forever to soften muscles around the shoulders/neck as they are covered with special tubing to prevent rusting.



No clasp - Easy to put on and take off

The ULTRA NEO allows you to put on and take off easily and quickly because it has no clasp. The powerful magnets firmly connect the both ends. You cannot find a necklace which allows you to put on and take off more easily and quickly. It will not bother you when you go to work or when you are very tired.



Easy length adjustment

It is easy to adjust the length because it has no clasp. You can change the length as you prefer.

Length of the ULTRA NEO
The total length of this necklace is approx. 60cm (23.6inches). We suggest you should wear it so that the both ends overlap by at least 10cm (3.9inches) to ensure firm connection. e.g. If the both ends overlap by 10cm (3.9inches), the length along the circumference becomes 50cm (19.6inches). You can refer to the images shown above.





Featured in media

2017 Nov
The ULTRA NEO was featured in Weekly Golf Digest. Japanese professional golf player Tetsuya Koyama actually wore it.


Comfortable to wear for long hours to thoroughly soften stiff muscles - Weighs 11g only

The ULTRA NEO weighs 11g only. You may even forget that you are wearing this lightweight necklace, so it is comfortable to wear for long hours to thoroughly soften stiff muscles around the shoulders/neck.




Antibacterial & Antimold - Very hygienic

"I would like a necklace which can be kept clean as it makes contact with the skin." The non-photocatalyst (*5) coated on the surface of the ULTRA NEO efficiently breaks down bacteria/mold, so it is kept clean. This is our dedication to details.

*5 Non-photocatalyst coating helps to break down harmful substances which exist on the coated surface and in the air. This self-cleaning technology is used for walls of hospitals, nursing homes, kindergartens, schools, hotels and so on as it produces significant hygienic effects.



Allows you to change the length/shape - Great as an ornament

You can change the length/shape of the ULTRA NEO as you prefer, so it is not only good for neck stiffness but also a great ornament.














Shipped in a nice jewelry box!

The ULTRA NEO is shipped in a nice jewelry box. We offer free gift wrapping service. Please select "Gift Wrapping: Yes" when you place an order.

* Boxes may vary slightly.

Maintenance

  1. Wipe off with a dry soft cloth. Do not wash with water or use bleach/detergent.
  2. Wipe off water in the event it gets wet and ensure it is completely dry before using again.


Q & A

1. Does it really work on neck stiffness?

We are sorry but we cannot guarantee it will work on you as it depends on the person/symptoms. However, it is likely that you will find some effects as this product is certified by the Japanese Ministry of Health, Labour and Welfare as a controlled medical device.

2. How long is the life span?

The magnets continue to work almost forever. However, the outer surface of the necklace becomes worn out as you use it.

3. What is the maximum length when worn around the neck?

It is approx. 50cm (19.6inches). The total length of the ULTRA NEO is 60cm (23.6inches). We suggest you should wear it so that the both ends overlap by at least 10cm (3.9inches) or so. This is why the maximum length is approx. 50cm (19.6inches) when worn around the neck. We think it will be long enough for all.

4. Can I attach a charm/pendant?

You can attach a charm/pendant if the metal end cap of the ULTRA NEO can pass through the hole of the bail of the charm/pendant. FYI: The diameter of the ULTRA NEO end cap is approx. 3.8mm.

5. Is it OK to let a child use it?

Babies: Never let them use it and keep out of their reach. They may chew it and accidentally swallow any broken pieces.

Children aged under 12 and those who need supervision: Let them use it under supervision. They may accidentally swallow the broken pieces if the product gets broken.

6. Is the ULTRA NEO water proof?

No, it is not.

How to use / Storage instruction / Maintenance

How to use
  1. Wear around the neck
  2. Use the magnet power to connect the both ends as this necklace does not have a clasp.
Storage instruction
  1. Keep away from powerful magnets or ferromagnetic materials.
Maintenance
  1. Be sure the device is OK before and after use. Immediately stop using it and contact us if an abnormality is found.

Before use - Important!

1. Do not use this device if:
(1) you are using a pacemaker or other implanted medical electronic devices. These devices can be affected by EMI.
(2) you are using a cerebrospinal fluid shunt magnetically adjusted vale implanted under the scalp to drain excess fluid from the brain to another part of the body. It can be affected by EMI.

2. Consult a doctor before use if:
(1) you have malignant tumor
(2) you have heart problems
(3) during early gestation or postpartum period
(4) you have peripheral circulatory disorders or perceptual disabilities caused by diabetes
(5) you have skin infections or wounds
(6) you have to stay in bed
(7) your body temperature is 38C or over
e.g.1 severe symptoms of acute inflammation including fatigue, chill and blood pressure fluctuation
e.g.2 extremely fatigue
(8) you have a sprain, pulled muscle or other painful disease

3. Keep out of reach of babies. They may crunch the necklace and accidentally swallow the broken pieces.

4. Do not use this device along with another therapeutic apparatus.

5. Consult a doctor or a qualified practitioner if the symptoms do not improve.

6. Use dedicated accessories.

7. Caution before use
(1) Keep away from magnetic media such as watches and magnetic cards.
(2) Make sure that the outer surface of the necklace has no crack.
(3) Make sure that foreign bodies such as metals are not adhered to the surface of the necklace when it is not used for a while.

8. Caution during use
(1) Immediately stop using the device if it becomes defective.
(2) Immediately stop using the device if you find health problems
(3) Immediately stop using the device if you find red spots on the skin or feel itchy.
(4) Stop using the device before you get an MRI scan.

9. Disposal instruction
(1) Follow the waste disposal instructions of your local authorities.

10. If it becomes defective:
(1) do not make alterations to the device
(2) contact us

11. Do not use this device other than wearing around the neck.

Customer Reviews

5 ★ 88
4 ★ 47
3 ★ 7
2 ★ 4
1 ★ 0
Ms. S.T Verified user
Saitama, Japan
Reviewed on 2026-08-14

From about the fifth day, my shoulder stiffness became much better.

Reason(s) why I purchased from you: Strong magnets go all the way around.
Detailed review: The morning after it arrived and I put it on, my lower back pain was much lighter. From about the fifth day, my shoulder stiffness became much better.
Mr. M.U Verified user
Ibaraki, Japan
Reviewed on 2026-08-03

It does not change things dramatically, but my symptoms are getting lighter, so I plan to keep using it.

Reason(s) why I purchased from you: It came up when I searched for magnetic necklaces.
Detailed review: I was wearing a product from another company, but I did not feel much effect, so I searched for a stronger one and arrived here. There were
Mr. K.M Verified user
Okayama, Japan
Reviewed on 2026-07-25

About 4 to 5 days after I started wearing it, I felt my shoulders become easier.

Reason(s) why I purchased from you: I used another company's product, but a cheap purchase had no effect, so I decided to splurge.
Detailed review: My shoulder stiffness was severe and I was troubled. About 4 to 5 days after I bought this, my
Ms. Y.I Verified user
Kyoto, Japan
Reviewed on 2026-05-03

I bought it for my daughter. She said, "This may be good," right after wearing it, and she says she still feels comfortable now.

Reason(s) why I purchased from you: I saw the reviews and many were highly rated. Also, returns were possible after use, so I could buy with peace of mind.
Problem solved by the product: I bought it for my daughter, who has severe shoulder
Ms. S.O Verified user
Gunma, Japan
Reviewed on 2026-04-18

My shoulder stiffness improved, and my body feels lighter.

Reason(s) why I purchased from you: There were many reviews, and they were helpful.
Detailed review: This is my second purchase. My shoulder stiffness was terrible, but after I started wearing this, my shoulder stiffness improved, and my body feels
Ms. S.O Verified user
Gunma, Japan
Reviewed on 2026-04-18

Many reviews helped me decide to buy.

Reason(s) why I purchased from you: There were many helpful reviews.
Detailed review: While using it, I feel that the discomfort around my neck has eased. My daily life also feels easier than before. Overall, I feel a positive change.

See all 146 Customer Reviews Rating: 4.5

[Please note] These are individual impressions and do not guarantee the efficacy or performance of the product; results vary from person to person. If you require medical treatment, please consult a physician. Reviews of other products in the same series are also included. Reviewers may receive a small gift (a silicone bracelet) for posting a review; reviews are not selected or filtered based on their content, and only expressions that violate applicable laws or regulations may be edited, with the reviewer's understanding. Customer Reviews originally written in Japanese are translated into English by Ion Trading.


Customer Reviews
Japanese Medical Certified Magnetic Necklace ULTRA NEO Max. 50cm (19.6") - Good for neck stiffness

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Specifications
P/N: ULTRA-NEO
Product name Japanese Medical Certified Magnetic Necklace ULTRA NEO Max. 50cm (19.6") - Good for neck stiffness
Generic name Home use magnetic induction therapy apparatus made with permanent magnets
Magnet type / Qty Neodymium magnet / 150 pcs
Magnet dimensions Diameter 1.5mm(+/-0.5mm), Length 4mm(+/-0.1mm)
Maximum magnetic flux density 80mT+/-30mT per magnet
Outer material Non-photocatalyst coated polyester
Inner material Neodymium magnet x150
End cap material Stainless steel
Total length 60cm+/-2cm
Total length when worn around the neck Max. 50cm +/- (overlap by 10cm)
Body diameter approx. 3.5mm
Metal cap diameter approx. 3.8mm
Weight approx. 11g
MHLW authorization (1) Second-class license for marketing medical devices #13B2X00036
(2) Medical device certified #226AGBZX00094000
Accessories Instruction manual, Jewelry box
Limited Warranty 2 years from the date of purchase
Manufacturer by: Sunchalaine Co., Ltd.
Made in Japan
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