Can relaxing change how a prostate chip feels? | The maker says mood matters [OK Prostate Chip]

This page is based on entries from "ok-lab's diary" (https://ok-lab.hatenablog.com/), the Japanese development diary written by Mr. Okada, founder of OK Lab (Okada Comfortable Life Laboratory). Only the entries about "setting the mood and relaxing" are summarized here, in order of publication. Past prices and sizes are as written at the time. Current prices come from the official product list (retrieved September 4, 2026). Quotations are translated from Japanese.

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Note: This page is a personal reading log by someone with no connection to the maker or the seller. It reflects the source entries as of their publication dates and makes no guarantee of accuracy or safety. The product is not a medical device; talk to a doctor about any health decision. Check the official site for current information. This page contains advertising.

In short

• OK Lab, a small company in Japan, reports that mood can influence how prostate stimulation feels.
• Mr. Okada emphasizes relaxation and distinguishes stronger stimulation from greater pleasure.
• The September 2026 product list includes resin models discussed in these replies.

If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away. If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.

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About this product

The OK Prostate Chip is a small device that is placed in the urethra (the urine passage) so that it acts on the prostate; the maker sells it in several shapes, sizes and materials. It is made and sold by OK Lab (Okada Comfortable Life Laboratory), a small company in Japan, through its own online store, and prices are in Japanese yen (JPY).

The maker's development diary, "ok-lab's diary", is written in Japanese. This page is an English summary of it, and every quotation is translated. OK Lab ships internationally, so readers outside Japan can order (see "Buying from outside Japan" below).

Product names on this page are plain-English descriptions. The official Japanese product name is shown once in the product table so you can find the same item in the store.

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Before you read: key terms

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What happens: prostate stimulation and relaxation

The OK Prostate Chip is a small device placed in the urethra (the urine passage) to act on the prostate. This topic concerns the mental setting around that physical stimulation, including relaxation, anticipation, and distractions mentioned in the diary. Mr. Okada treats these as influences on how stimulation feels. The discussion concerns the user's surroundings and state of mind, alongside the chip's physical presence within the urinary passage.

Relaxation featured in the reply about a custom resin chip's discomfort

In an entry published in April 2018, a customer described a custom resin chip intended to provide a stronger grip. They reported increased friction and discomfort, and wanted to reconsider the size. Mr. Okada replied that, in his experience, passage of resin chips varied with physical condition.

The customer had received the requested shape, but the diary does not record whether a smaller replacement was subsequently ordered. No matching product can be confirmed on the current list. Mr. Okada's advice emphasized relaxation and adequate moisture.

(Source: ok-lab's diary, published April 2018)
https://ok-lab.hatenablog.com/entry/20180407/1523090115

Prostate stimulation did not come with a promise of continuous sensation

In an entry published in June 2020, a customer from Korea asked whether reaching the intended position would produce immediate, continuous pleasure. They had previously tried an anal device without the progress they wanted. OK Lab's staff replied that some customers felt nothing, and even experienced users described different sensations.

The staff considered sensation a combination of physical contact and mental state, so they did not promise continuous pleasure. The diary does not record whether this customer subsequently bought a chip or experienced a response. Their purchasing advice favored a simple, inexpensive initial choice over a complicated setup.

(Source: ok-lab's diary, published June 2020)
https://ok-lab.hatenablog.com/entry/2020/06/27/120614

A prostate stimulation report included bleeding alongside praise for immersive video

In an entry published in October 2020, a customer reported using a bumpy curved chip identified as 3-1. They described fresh bleeding after it rotated within the first 5 cm of the urethra. Blood was later visible on their inner thighs, palms, and penis.

The same account described strong pleasure alongside virtual reality video, and Mr. Okada welcomed that idea without addressing the bleeding in his published reply. No matching product can be confirmed on the current list. The diary does not record a medical assessment or the later outcome of the bleeding.

(Source: ok-lab's diary, published October 2020)
https://ok-lab.hatenablog.com/entry/2020/10/24/115457

Prostate stimulation prompted a question about spontaneous muscle movement and mood

In an entry published in September 2021, a customer who had begun experiencing pleasure asked whether deliberate muscle movement was necessary. They also asked whether pressure around the perineum, the area they described pressing, helped or interfered. Mr. Okada said spontaneous movement of the PC muscles was his ideal, while acknowledging that it was difficult to achieve.

He associated that response with mood and physical condition. The diary does not record whether the customer later experienced the spontaneous response they wanted. Mr. Okada considered pressure around that area supportive of sensation, rather than inherently disruptive.

(Source: ok-lab's diary, published September 2021)
https://ok-lab.hatenablog.com/entry/2021/09/11/125735

Prostate stimulation could fade after an initially noticeable sensation

In an entry published in May 2022, a customer with a medium-length resin chip asked what should happen after the initial noticeable sensation. They wanted to know whether that feeling continued or developed into pleasure. Mr. Okada replied that some people stopped noticing the device afterward.

He distinguished a physical response from the way someone experienced it. In his view, relaxation and sexual interest influenced whether stimulation felt pleasurable; the diary does not record this customer's subsequent experience. His answer emphasized the fit between physical stimulation and mental state.

(Source: ok-lab's diary, published May 2022)
https://ok-lab.hatenablog.com/entry/2022/05/21/124217

Removal anxiety entered Mr. Okada's discussion of prostate stimulation and relaxation

In an entry published in March 2024, Mr. Okada described removal difficulties during his own product tests. He suspected that repeated testing had reduced moisture in the urethra. He also thought anxiety about a chip that would not come out could worsen dryness and make removal harder.

These were his interpretations of his experience. The entry does not establish a medical cause for another person's difficulty. His proposed development work focused on lubrication, meaning moisture or a slippery substance intended to reduce resistance.

(Source: ok-lab's diary, published March 2024)
https://ok-lab.hatenablog.com/entry/2024/03/02/123027

Relaxation was one suspected factor when a linked chip would not advance

In an entry published in June 2024, a customer said their linked chip, called Alien, had passed the sphincter only once. Mr. Okada considered its curved front section, wire flexibility, and section sizes as possible factors. His main suspicion was insufficient moisture, which he associated with changing mood and anticipation.

No matching product can be confirmed on the current list. The diary does not record whether the customer's difficulty improved. Mr. Okada's proposed response centered on greater lubrication.

(Source: ok-lab's diary, published June 2024)
https://ok-lab.hatenablog.com/entry/2024/06/29/123044

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The maker's answer to prostate stimulation and relaxation

Mr. Okada treats mental setting, physical comfort, and stimulation strength as separate considerations.

Setting the mood included audio in an early reply about absent sensation

In an entry published in April 2018, a customer asked whether weak sensation meant their chip was in the wrong place. Mr. Okada initially thought their description suggested it had reached the intended region. When the customer clarified their concern about going too far, he acknowledged that he could not name one universally correct position.

He suggested that several explanations remained possible, including limited awareness of the sensation. The diary does not record whether the customer's uncertainty was resolved. For the psychological side, Mr. Okada suggested an appropriate mental setting, including hypnosis audio.

(Source: ok-lab's diary, published April 2018)
https://ok-lab.hatenablog.com/entry/20180414/1523697398

Feeling nothing led to caution about increasing an anal chip's size

In an entry published in November 2018, a customer asked whether an anal chip needed to be larger because it produced no noticeable stimulation. Mr. Okada did not recommend an immediate size increase in that situation. He discussed physical fit and differences between days as possible considerations.

He also mentioned a separate device targeting the seminal vesicles, whose role the diary does not explain. At that time, he was not selling that dedicated device because he considered it too dangerous. His initial advice was against treating an absence of sensation as a reason, by itself, to choose a larger anal chip.

(Source: ok-lab's diary, published November 2018)
https://ok-lab.hatenablog.com/entry/20181117/1542436271

Stronger prostate stimulation and greater pleasure were treated as separate questions

In an entry published in January 2022, a customer from Switzerland asked why their chips felt pleasant without an expected hot sensation. They worried that something might be blocking progress. Mr. Okada replied that, in his view, a chip's size and length affected that hot feeling.

He treated pleasure as a separate issue, influenced by physical condition and mood. The diary does not record whether the customer later experienced the sensation they expected. His advice emphasized becoming receptive to pleasurable sensations, rather than using intensity as the sole measure.

(Source: ok-lab's diary, published January 2022)
https://ok-lab.hatenablog.com/entry/2022/01/08/123729

If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away. If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.

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How prostate stimulation and relaxation changed over time

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OK Prostate Chip products related to prostate stimulation and relaxation

These current resin models appeared in questions about absent sensation and prior experience.

Products that appear in these entries

(Source: ok-lab's diary, published July 2022)
https://ok-lab.hatenablog.com/entry/2022/07/30/122933

(Source: ok-lab's diary, published May 2022)
https://ok-lab.hatenablog.com/entry/2022/05/21/124217

Products the diary mentioned as alternatives

The diary names no alternative.

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Common worries about prostate stimulation and relaxation

The replies repeatedly distinguish noticing a chip from experiencing sustained pleasure.

"Does relaxation help when a prostate chip will not advance?"

In an entry published in January 2020, a customer reported difficulty with a 10 mm vibrating chip. Mr. Okada first suspected an attached stopper, but the customer clarified that it was already outside the body. He then suggested that dryness and emotional tension could influence passage.

A later follow-up reported successful placement after a device alteration, with part of the motor exposed. No matching product can be confirmed on the current list. Mr. Okada's earlier advice included relaxation, although the follow-up does not establish that relaxation resolved the problem.

(Source: ok-lab's diary, published January 2020)
https://ok-lab.hatenablog.com/entry/2020/01/25/150127

"Does prostate stimulation require previous experience before trying a chip?"

In an entry published in July 2022, a customer ordering a short resin chip asked whether prior prostate pleasure was necessary. They had not reached that point with anal devices. Mr. Okada considered the urethral approach a possible starting point, based on his own experience.

He also said the Prostate Chip was not the only device capable of producing stimulation. The diary does not record this customer's later experience. His central advice was to begin with mood, because physical stimulation without sexual interest might produce no noticeable pleasure.

(Source: ok-lab's diary, published July 2022)
https://ok-lab.hatenablog.com/entry/2022/07/30/122933

"Can setting the mood explain why sensation disappears?"

In an entry published in December 2024, a customer described brief pleasure followed by little awareness of the chip. They asked whether the device had failed to reach the intended area or whether its position was unsuitable. Mr. Okada thought their description suggested it had reached the prostate region, while acknowledging that position and responsiveness were separate questions.

His reply also discussed stronger stimulation, but the diary does not record a subsequent result. Mr. Okada's initial advice emphasized relaxation and sexual interest. He mentioned preferred videos as part of creating that atmosphere.

(Source: ok-lab's diary, published December 2024)
https://ok-lab.hatenablog.com/entry/2024/12/21/122903

"Why does prostate stimulation feel noticeable only briefly?"

In an entry published in May 2025, a customer asked why an initial sensation did not develop into the pleasure they expected. They wondered whether depth or additional stimulation explained the difference. Mr. Okada replied that, when someone felt sufficiently aroused, the device's presence could produce a response.

At other times, he thought they might notice only passage through the sphincter. The diary does not record whether this customer's experience later changed. Mr. Okada also cautioned that judging depth with another instrument could be difficult and could allow the chip to enter the bladder.

(Source: ok-lab's diary, published May 2025)
https://ok-lab.hatenablog.com/entry/2025/05/31/122940

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Buying from outside Japan

OK Lab ships internationally to countries covered by Japan Post's EMS courier service. Overseas orders are paid in advance by PayPal. Each order carries a ¥400 (about $3 at ¥156 = $1, rate as of 2026-09-04) handling fee, and EMS shipping is charged on top. These terms come from OK Lab's official sales-terms page (written here as plain text, not a link: ok-lab.net/docs/law), checked on September 7, 2026; confirm them on the official store before you order, because they can change.

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Summary of this article

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Source: ok-lab's diary (Okada Comfortable Life Laboratory). The original entries are in Japanese; quotations on this page are translated. Photos and videos are on the original entries.