This review has been sponsored Hello everybody!
I’m very happy to share my third product review as part of my new partnership with Motsutoys (EU) / Onaholes (US)!
Motsutoys is a trusted online store that specializes in high-quality adult products, and I’m proud to be working with them through their affiliate program. A big thank you to them for this opportunity and for including me in their network — it means a lot!
Today, I’ll be reviewing the second product they sent me to test:
OnaEki 370 Lube
You can find it here:
EU Store - OnaEki 370
US Store - OnaEki 370
About This Review
This review is structured around seven key categories, each of which will receive a score from 1 to 5 (with 5 being the best). At the end, I’ll provide an overall score based on the average of all seven sections.
The categories I’ll be evaluating are:
1. Bottle Design & Dispensing
2. Texture (incl. Efficiency & Longevity)
3. Quality
4. Amount Needed / Efficiency
5. Smell
6. Cleanup
7. Value for Money
Let’s get into it, one section at a time!
If you have questions along the way or want to share your own experience, feel free to comment — I’d love to hear from you.
Disclaimer & Transparency
In the spirit of full transparency, here are a few important things to know about this review:
- This product was provided to me for free by Motsutoys as part of our affiliate partnership.
- I was given the option to choose two products to test — OnaEki 370 Lube was sent to me among the two Onaholes.
- All links in this review are affiliate links. If you choose to buy something through one of them, you’ll be directly supporting me — at no extra cost to you.
- Thank you so much for considering using my affiliate links. Your support truly helps me continue doing what I love.
- This product has been tested seven times at the time of writing this review.
- While this is a sponsored review, all opinions are my own, and I always strive to be honest, constructive, and fair in my assessments.
- Motsutoys did not ask me to do this reviews, I am making this review by my own intention.
- This review reflects my personal experience — every person is different, and sensations, preferences, and comfort levels may vary.
I wrote this review together with the help of ChatGPT. I provided my own key points, experiences, and thoughts for each section, and ChatGPT helped me turn those into a well-structured and professional text. So while the wording was supported by AI, the impressions, opinions, and final direction of the review are entirely my own.
Product Overview
| Attribute | Details |
|---|---|
| Price |
€19.95/ $19.95 |
 Product Weight |
370 g |
 Amount |
370 ml |
 Brand |
Seiraku Toys |
 Made in |
Japan |
 Type |
Water-based lubricant |
 Ingredients |
Water, Sodium polyacrylate, Sodium dehydrogenate, Disodium EDTA |
Ingredients Overview
The OnaEki 370 uses a simple and skin-friendly formula:
- Water – The primary base for most water-based lubricants, safe and non-irritating.
- Sodium Polyacrylate – A thickening agent that gives the lube its smooth consistency and helps it stay in place without running. Widely used in cosmetics and personal care products.
- Sodium Dehydrogenate – A stabilizer that helps maintain the product’s quality and texture over time. Considered safe in topical applications.
- Disodium EDTA – A chelating agent that binds minerals in water to prevent changes in texture or spoilage. Common in skincare products and non-irritating for most users.
Conclusion:
All listed ingredients are commonly used in personal care products and are generally considered safe for skin contact. The lube is skin-friendly, and in my own use, I experienced no irritation, redness, or discomfort.
1. Bottle Design & Dispensing
The OnaEki 370 — translated as “Girl’s Fluid” — comes in a 370 ml squeeze bottle that combines functionality with a charming anime-themed design. The bottle itself follows a standard cylindrical format, making it easy to store and handle.
Thanks to its squeeze design, dispensing the right amount of lubricant is simple: a light press releases the product in a smooth, controlled flow. After just one use, you quickly get a feel for how much pressure is needed, minimizing any risk of spilling. The output per squeeze is well balanced — neither too much nor too little — making application both to yourself and to toys quick and mess-free.
From the very first use, the bottle gives a solid, high-quality impression and feels reliable in hand.
Score: 5/5
Practical, precise, and mess-free—this bottle design makes application effortless.
2. Texture
The OnaEki 370 strikes an excellent balance between fluidity and thickness. It’s liquid enough to spread easily, yet thick enough to stay in place without immediately running off the surface — ideal for both manual use and with toys.
Its smooth, non-sticky consistency makes application pleasant and hassle-free. Spreading it over the desired area is effortless, and it requires less product than many lubricants I’ve used in the past.
Longevity is also a highlight: during standard use sessions (10–45 minutes), there’s no need for reapplication. This will, of course, vary depending on the toy, the intensity of the script, and personal preferences, but in direct comparison, I found myself reapplying far less often than with my previous lubricant.
Score: 5/5
Smooth, balanced, and long-lasting — exactly what you want from a quality lube.
3. Quality
The OnaEki 370 delivers a premium feel from the very first use. It’s safe on the skin — no irritation, itching, or discomfort — and enhances the overall experience in a way I honestly didn’t expect from a lubricant.
Previously, I used a 1-liter lube costing around €20, which I thought was “good enough.” However, that required much larger amounts per session and frequent reapplication. In direct comparison, OnaEki requires far less, lasts longer, and significantly improves the feel of the same Onaholes.
The difference is truly night and day — a reminder that the quality of lube can greatly influence the experience.
Score: 5/5
Premium quality that turns a good session into a great one.
4. Amount Needed / Efficiency
One of OnaEki 370’s biggest strengths is its excellent efficiency. You simply don’t need much to get the job done — far less than with many other lubricants I’ve tried in the past.
It stays in place without running, keeps everything moist for the entire session, and doesn’t dry out even during longer use. For a standard session of about 30–45 minutes, there’s no need to reapply.
Because it lasts longer and requires smaller amounts per use, it offers better cost-efficiency despite being a premium product.
Score: 5/5
Lasts longer, works harder, and saves you product.
5. Smell
OnaEki 370 is completely odorless — there’s no noticeable scent at all. Personally, I prefer lubricants without fragrance, as it keeps the experience neutral and distraction-free.
Score: 5/5
No scent, no distractions — just performance.
6. Cleanup
Cleaning up after using OnaEki 370 is quick and effortless. It washes off easily from both skin and toys, without leaving behind any residue, stickiness, or stains. The formula is not sticky to begin with, making post-use care a simple rinse or wipe away.
Score: 5/5
Cleans as easily as it applies — no fuss, no mess.
7. Value for Money
At a price of 19.95€ / $ for 370 ml, each milliliter costs roughly 0.054€ / $—just over 5 cents per ml. While the price may initially seem higher than cheaper bulk lubricants, OnaEki 370 is far more efficient: you need less from the start, and reapplication is rarely necessary. On top of that, it significantly enhances the overall experience, making it worth the extra investment. Personally, I’d rather purchase a high-quality lube like this than go back to the cheaper alternatives I used before. I will absolutely buy it again.
Score: 5/5
Premium feel, fair price—especially when every drop lasts longer.
Pros & 
Cons
Pros:
- Squeeze bottle design makes it easy to apply and control the amount
- Perfect balance between fluidity and thickness — doesn’t run away or feel sticky
- Odorless (personally preferred)
- High-quality, skin-friendly product with no irritation
- Enhances the overall experience — noticeably better than other lubes I’ve tried before
- Extremely efficient — needs less per use and rarely requires reapplication
- Easy, residue-free cleanup
- Excellent value for the performance it delivers
Cons:
- None
TL;DR
OnaEki 370 is a premium, water-based Japanese lubricant that delivers on all fronts: perfect texture, no smell, skin-friendly, and incredibly efficient. It elevates the feel of any toy, cleans up effortlessly, and offers great value despite the slightly higher price. For me, it’s an easy 5/5 and a product I’ll keep using.
Final Rating
OnaEki 370 has completely changed how I think about lubricants. I was genuinely surprised at how much of a difference the right lube can make — from the first application to the end of a session, it delivers consistent performance without reapplication, keeps everything perfectly smooth, and cleans up in seconds. Add to that the fact that it’s odorless, skin-friendly, and cost-efficient, and it’s easily one of the best lubes I’ve ever used.
Final Score: 5 / 5
Closing Words
Thank you for taking the time to read my review of OnaEki 370. Writing this was genuinely fun, and I’m happy to share my honest experience with a product that has exceeded my expectations in every category.
A big thanks goes to Motsutoys for sending me this product and allowing me to test it — I’m glad to say it will now be part of my regular rotation.
As always, if you have any questions about this product, my experience with it, or how it compares to other lubes I’ve tested, feel free to reach out in the comments.
Thank you very much for reading!
Until next time
Slibowitz
Affiliate Links
If you decide to purchase the product through one of the links below, you’ll be directly supporting me — at no extra cost to you — through a small commission.
Thank you so much for considering it! 
EU Store - OnaEki 370
US Store - OnaEki 370
Additional links
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