In-Depth Analysis of W Kenko Aojiru Plus Drawbacks
PRODUCT

- Product
- W Kenko Aojiru Plus | Health Food | Official Shin Nihon Seiyaku Online Shop
- Provider
- Shin Nihon Seiyaku

Dr. Bravo
W Kenko Aojiru Plus is a functional food product that addresses body fat, visceral fat, blood triglycerides, as well as elevated blood pressure and fasting blood sugar levels. The design that tackles five health concerns with just one drink per day is highly practical for busy modern lifestyles. With efforts to improve drinkability through a matcha-flavor base, it's designed as an easy-to-adopt daily health habit. For those starting to worry about their health checkup numbers, it's an appealing option that's simple to begin with.
BooLab Reviewer Negative Reviews
While the design addressing five health metrics as a functional food is commendable, the reported cases of no improvement in blood test numbers even after 4+ months of continued use can't be overlooked. Ongoing costs are also on the high side, making cost-effectiveness difficult to judge even with subscription purchases. Understanding that guaranteed results like pharmaceuticals can't be expected from health foods, this needs to be considered as a long-term investment.
The distinctive flavor profile with fruity acidity and herbal notes feels like an artistic approach that overturns conventional aojiru expectations. However, this unique taste becomes a double-edged sword that sharply divides preferences. Expecting matcha flavor creates an expectations gap easily, and the lack of sweetness and bitter aftertaste are also noted concerns. There's room for improvement in the completeness of the taste experience.
Reported quality concerns include incomplete dissolution in 100ml, requiring adjustment to about 200ml. Solubility is a crucial element directly tied to daily usability. Additionally, cases of not experiencing effects even after long-term use of 4-6 months raise understandable questions about product reliability and consistency. Whether you can accept the significant individual variation as a product characteristic is the key point.
While the convenience of one drink per day suits busy lifestyles, taste satisfaction becomes crucial for daily continuation. If the distinctive flavor doesn't suit you, continuation could become painful. The residue requiring additional water means drinking more than anticipated, which could be a small stress point in daily use. Reports of large shipping box sizes could also be a concern for those with limited storage space.
Negative Review Summary

Dr. Bravo
According to our Boo analyst team's analysis, the most frequently noted concern is the significant individual variation in experiencing effects. While some people don't notice changes in their numbers even after six months, others feel an improvement in overall wellbeing, creating a gap between expectations and results. Taste evaluations are also polarized—the distinctive flavor profile with fruity acidity and herbal notes divides preferences. There are also concerns about ongoing costs, suggesting this needs to be considered as a long-term health investment.
What People Are Saying
BooLab Survey: March 4, 2026
Not Recommended For

Dr. Bravo
Those expecting clear numerical improvements in the short term
Those seeking traditional green tea-like aojiru flavor
Those wanting to continue health supplements while keeping costs down
Those prioritizing a completely smooth drinking experience without residue
Those expecting drug-like guaranteed effects
BooLab Picks Just for You
Asahi Ryokuken Ryokko Aojiru
¥9,980Barley grass-based for easy drinking, with relatively reasonable pricing. As a functional food addressing blood sugar and triglycerides, it's suitable for those prioritizing cost performance.
Go to Purchase Page
Fancl Naishibo Support
¥9,180A functional food specifically focused on reducing body fat. With abundant clinical trial data providing clear evidence of effectiveness, it's recommended for those prioritizing numerical improvements.
Go to Purchase PageA Different Perspective

Dr. Bravo
But here's the thing—individual variation in effects actually means that if it matches your body chemistry, it could provide solid support. The voices saying they feel good even after six months of use might be evidence of health maintenance effects that don't show up in numbers. The distinctive taste can also be a fresh alternative for those tired of conventional aojiru, and the residue issue can be viewed as an advantage—allowing you to customize the concentration to your preference by adjusting water amount. Precisely because health foods aren't pharmaceuticals, there's a peace of mind in being able to try them casually.
Recommended For

Dr. Bravo
Those wanting comprehensive care for multiple health metrics
Those who can think about health maintenance from a long-term perspective
Those who enjoy acidic or herbal flavors
Those who can make ongoing health investments through subscription purchases
Those seeking preventive approaches before relying on medications
Convinced After BooLab's Analysis?
Choose with confidence, backed by thorough analysis

Dr. Bravo says
After reading BooLab's thorough analysis, there's no need to hesitate. Go ahead and choose with confidence!

W Kenko Aojiru Plus | Health Food | Official Shin Nihon Seiyaku Online Shop
Shin Nihon Seiyaku
Boo Trends (Weekly)
Trend graphs will appear as weekly digests accumulate.
More Boo Reviews in Health Foods
EMX GOLD 500ml

EMX GOLD is a health support beverage containing approximately 2,300 types of minute metabolites produced by beneficial bacteria, including photosynthetic bacteria. The fact that its effectiveness has been clinically proven is very reassuring. It's nearly tasteless and easy to drink, and contains none of the 28 major allergens, so it's suitable for all body types. With zero fat, carbohydrates, and protein, it's also attractive for those on a diet to consume worry-free.
Asahi Group Foods Dear-Natura

Dear-Natura is a highly trusted nutritional supplement brand developed by Asahi Group, a major Japanese food manufacturer. With a wide product lineup ranging from multivitamins to folic acid, iron, calcium, and DHA, its major appeal is the convenience of purchasing at drugstores and supermarkets. Manufactured domestically with thorough quality control, it's a product that even first-time supplement users can choose with confidence. The relatively reasonable price range makes it easy to continue, which is another commendable point.
Yakult 1000

Yakult 1000 is a groundbreaking functional food that contains 1 trillion Lactobacillus casei strain Shirota per bottle. What's wonderful is that it approaches modern concerns—stress relief and improved sleep quality—with scientific evidence. Beyond just improving gut health, it's reported to help ease tension and fatigue during temporarily stressful situations and enhance sleep quality. This truly represents the culmination of Yakult's years of research.
Popular Boo Reviews
Apple iPhone 17 Pro

The iPhone 17 Pro shines with its overwhelming processing power from the A19 Pro chip and vapor cooling system, shooting flexibility with its 48MP triple camera system, and battery performance delivering up to 33 hours of video playback. The 6.3-inch large ProMotion display is smooth and beautiful, while the hot-forged aluminum Unibody design balances durability with premium quality. The introduction of new colors like Cosmic Orange is also noteworthy. Its integration with the Apple ecosystem remains best-in-class.
Xiaomi Redmi 14C

The Xiaomi Redmi 14C is an entry-level model with exceptional cost performance, featuring a massive 5,000mAh battery and a large 6.88-inch display. Despite its low price point, it covers the basics well and can handle everyday tasks like social media, messaging, and video streaming just fine. The excellent battery life is a major advantage for people who can't charge frequently. It's also perfect for those who prioritize a large, easy-to-read screen.
Google Pixel 9a
The Google Pixel 9a delivers class-leading features with its massive 5100mAh battery and an impressive 7-year update guarantee—among the best long-term support in its category. Gemini AI assistant functionality makes everyday tasks like photo editing and voice commands significantly more convenient. With IP68 water and dust resistance for durability and a beautiful 6.3-inch OLED display for excellent visibility, it's built to last. AI-powered photography features like macro focus and group photo editing are fully equipped, giving it solid potential as a long-term companion device.
Nintendo Switch 2

Nintendo Switch 2 is Nintendo's highly anticipated next-generation gaming console. It inherits the hybrid design that fuses portable and docked modes from its predecessor while achieving significant performance enhancements. You can expect higher-definition graphics, smoother gameplay, and Nintendo's signature innovative gaming experiences. The peace of mind that comes with availability through My Nintendo Store and game retailers nationwide is another plus. As an ambitious project opening a new era for Nintendo, it's capturing the attention of countless gaming fans.