d23b5fffb9250b67cdcac7111c4f30c5_4a1dda47-6683-475b-a9a4-cc760e7b2612
d23b5fffb9250b67cdcac7111c4f30c5_4a1dda47-6683-475b-a9a4-cc760e7b2612
ccoffee
iso_jp
made_in_afc_jp_2118eb23-cfb4-4848-b6c5-92779511002a
undefined
nofakes_802645e0-bae1-4669-9739-02f6fcecaf1e
undefined
gmp_jp_84a3f65d-ef2f-4f26-bd8f-e44a3ea929fe
undefined
iso_jp_56dba316-60ca-46b4-a27f-896edec3ed2a
undefined

Comprehensive Care for All Your Needs

Child Growth & Development

Adult Wellness

Real Customer Testimonials

0+
Trusted by Families — Tenchi ✓
65496_5e93178b-12f5-4841-a4da-ebd74b92ed38
ecom-no-replace-TkLaleYZvrFrame_21796
差唔多食晒3樽, 暫時高左2cm, 會繼續食希望再高4cm就滿足喇, 覺得效果好好!同埋客服好好!問咗好多嘢都好有耐心答我啲問題🙋‍♀️
Shelly
  • Verified Buyer

growthmax_chews_c4d058fe-6b28-4f1b-bfca-525e073eb7c5
efeef
ecom-no-replace-TkLaleYZvrFrame_21796
長高糖 is a safe choice!有9種成長胺基酸、牡蠣提取物同鯊魚軟骨,聽落好scientifi。我女10歲食咗半年無任何不適,仲要高左成3cm
Queen
  • Verified Buyer

gjhg
err
ecom-no-replace-TkLaleYZvrFrame_21796
原本好擔心細路唔夠高,試咗呢款大半年,點知高咗成3.7cm,開心死啦!

Amy
  • Verified Buyer

growthmax_chews_c4d058fe-6b28-4f1b-bfca-525e073eb7c5
ewrwrwr
ecom-no-replace-TkLaleYZvrFrame_21796
好開心搵到聰明豆!小朋友食咗之後,學習效率高咗,仲唔會成日發脾氣👍🏻

Angela Lo
  • Verified Buyer

1_smart_brain
95565894_eccea08d-9718-4d96-92dd-fb105f9de958
ecom-no-replace-TkLaleYZvrFrame_21796
小朋友食咗聰明豆一個月,明顯做功課嘅效率提高左好多,每日1-2個鐘就做晒功課,而且一向成績唔太好既佢今次測驗竟然拎到79分🤩
Ryan Yeung
  • Verified Buyer

1_smart_brain
511313_893ec1cf-d3bc-4011-9f18-dc95f53e088f
ecom-no-replace-TkLaleYZvrFrame_21796
見到呢個咖啡代餐可以提神又可以減肥就試下 味道好似齋啡 有炭燒味好香 飲完唔係好覺飽腹感🤣但排便係順暢同明顯成個人無咁腫
Jonna
  • Verified Buyer

1_c_coffee
rwrwr
ecom-no-replace-TkLaleYZvrFrame_21796
我個仔有ADHD徵狀,試咗畀佢食聰明豆,佢上堂分心少咗,老師都話佢有進步😀

Heiman
  • Verified Buyer

1_smart_brain
59595959
ecom-no-replace-TkLaleYZvrFrame_21796
第6個空瓶子了 呢隻精華真係超好用,保濕力好強同埋令我嘅敏感肌好返晒!連我先生都好中意呢枝精華,繼續買多6枝一齊用!
Sofie Chan
  • Verified Buyer

gjhg

Why Choose Tenchi?

MADE_IN_JAPAN_1_04bd2230-4ff7-4ecf-9ce0-1fbbb319bbbf

Developed and Manufactured by a Renowned Japanese Pharmaceutical Company with Over 100 Years of History

Japan’s First Listed Health Food Company — Over a Century of Excellence and Multiple Patents
MADE_IN_JAPAN_2_2883bbea-0ce5-4246-8e03-d9ddb880c87c

GMP & ISO 雙重認證

Pharmaceutical-Grade Quality – Every Capsule Meets the Same Stringent Standards as Medicines
Beauty_-_2026-01-13T125642

High Bioavailability Formula × Proven Real Results

Exclusive Research-Backed Formula for Superior Nutrient Absorption, Trusted by Over 10,000 Satisfied Customers
afc-company-1024x462
Built on Japan’s AFC Pharma-Grade Standards,
Peace of Mind for Your Family’s Health – The Top Choice

Tenchi | Premium Japanese Medical-Grade Family Health Expert

Recommended by Medical Professionals & Nutritionists

Professionally Recognized · The Confident Choice

Global Shipping

Free Shipping for all orders in Hong Kong
Free Shipping for overseas orders over HKD $5,000

Fast & Reliable Delivery

Orders placed Monday–Friday before 5:00 PM
will be dispatched on the same day.

Excellent Customer Service

Our dedicated health advisors provide professional, personalized recommendations.

Health Tips

Adhd-products-faq

Full Analysis of ADHD Products:
Efficacy, Ingredients, and Safety at a Glance

Is your child always fidgeting in class? Do adults often get distracted at work? Or are elderly family members starting to forget things?" If you're seeking solutions for these brain health issues, Tenchi Smart Brain might be the key. This natural supplement, developed by a well-known Japanese health brand, focuses on ADHD and attention issues. It combines phosphatidylserine, DHA, EPA, and seven other clinically proven ingredients. In just 4 weeks, you can see noticeable improvements in focus and mood. Below, we've compiled answers to the 10 most frequently asked questions, explained in simple language that parents, office workers, and seniors can understand instantly!
height-increase-methods-men-women

Height Increase Methods for Men and Women:
A Comprehensive Guide to Scientifically Effective Height Enhancement

In Hong Kong, a city that emphasizes external appearance, height often affects self-confidence. Whether male or female, many people hope to grow a few centimeters taller. Although genetics is a major factor influencing height, through proper height increase methods for men and women, there is still an opportunity to maximize growth potential during the developmental period.
natural-height-growth-option

Natural Height Growth Option:
Say Goodbye to Growth Hormone Injections and Height-Enhancing Pills

Height is a source of confidence for many people, especially during adolescence, when both parents and teenagers aspire to achieve an ideal height. Traditional height-enhancing methods, such as growth hormone injections and height-enhancing pills, are often mentioned, but they come with high costs, side effects, and uncertain results. Now, an innovative product from Japan offers a natural and safe way to support height growth, making it a highly regarded option in the market.
growthmax_cart
smartbrain_cart

FAQ

About Children's Growth

About Difficulty with Focus & Concentration

Is “⁠Is "Height Growth Chew” a drug or candy?

No, it is not a medicine. It is a natural dietary supplement. It is also not candy — it is a sugar-free tropical fruit flavored chewable tablet that tastes pleasantly sweet and tangy.

What are the main ingredients in Tenchi GrowthMax Chews?

The product uses a 100% natural formula, including:
- 9 growth amino acids (lysine, threonine, arginine, etc.)
- Patented YGF® yeast peptide
- Oyster extract
- 3 types of growth calcium (eggshell calcium, coral calcium, algae calcium)
- Whey protein
- Shark cartilage extract
- Porcine cartilage extract
- Vitamin PREMIX (containing vitamins D, K, B-complex, and folic acid)
These ingredients are specifically designed to promote bone growth, nutrient absorption, and cartilage regeneration.

What benefits can Tenchi GrowthMax Chews provide?

It stimulates growth hormone secretion, enhances bone cell growth, strengthens bone density, delays growth plate closure, and helps break through genetic height limitations. According to Japanese clinical trials, after 3 months of continuous use, 92% of participants experienced an average 34% increase in height growth rate.

Who is suitable for taking Tenchi GrowthMax Chews?

It is ideal for children and adolescents aged 5–22 during their developmental years, especially during the pubertal growth spurt. The effects are more pronounced if the growth plates have not fully closed. Adults or those with fully closed epiphyseal lines will see limited results.

18 歲後還能用 Tenchi 長高糖長高嗎?

Yes! Although most people’s growth plates gradually close after puberty, studies show some individuals retain growth potential until age 22. Clinical trials have recorded height increases in participants under 22. Pair with a balanced diet and exercise for optimal results.

為什麼選擇 Tenchi 長高糖,而不是其他長高產品?

Tenchi Height Growth Candy is developed by a leading listed Japanese pharmaceutical company. Backed by scientific evidence, it effectively supports all-round bone growth and development.
- Hormone-free
- No artificial additives
- GMP & ISO certified quality
Unlike many other products that rely on exaggerated claims, Tenchi emphasizes real clinical data and proven effectiveness.

What is Tenchi Smart Brain? Is it suitable for ADHD?

This is a natural nutritional supplement designed for brain health, developed by a renowned Japanese health food brand. It's particularly effective for people with ADHD or suspected ADHD. The formula includes phosphatidylserine, Omega-3, and other ingredients that enhance focus, stabilize mood, and improve symptoms of attention deficit and hyperactivity. Clinical studies have confirmed significant benefits for ADHD-related symptoms.

Who is it suitable for? Can non-ADHD people use it?

Sure. Non-ADHD individuals can also use it to boost focus, memory, and reduce brain fatigue. It's suitable for those with cognitive impairments, middle-aged office workers (to enhance stress resistance), or anyone needing brain health support. It's family-friendly, helping kids learn faster and adults keep their brains young.

What are the key ingredients? How do they help with ADHD?

Each dose of 2 capsules contains 100mg phosphatidylserine (strengthens brain cell connections, enhances focus and memory); 200mg DHA (promotes brain development, improves attention); 150mg EPA (regulates dopamine and serotonin, stabilizes mood); plus walnut extract (antioxidant protection for brain cells), zinc (strengthens neural transmission, improves focus), iron (improves oxygen transport, relieves fatigue), lutein (protects nerves), and B-group vitamins (boosts energy metabolism). These ingredients target ADHD symptoms, providing comprehensive brain support.

How long does it take to see effects?

Based on Japanese scientific validation and user feedback, most people notice improvements in focus and mood within 4 weeks of use. Long-term use supports brain development for more lasting effects. Benefits like improved learning performance in children or enhanced stress resistance in middle-aged adults may require 8-12 weeks of consistent observation.

How should it be taken? What's the best time?

ADHD 人士:每日 2 次,每次 2 粒,早餐與晚餐後服用,效果更顯著。
一般或懷疑 ADHD 人士:每日 1 次,每次 2 粒,早餐後服用。
適用 5 歲以上,各年齡層劑量相同。幼兒無法吞膠囊時,可剪開擠出內容拌入食物。為迷你軟膠囊,無腥味,方便服用。

How does Tenchi Smart Brain differ from other ADHD supplements

Compared to general supplements, Smart Brain is specifically designed for ADHD, combining 7 core ingredients (such as 100mg phosphatidylserine, 200mg DHA, 150mg EPA) that target neurotransmitter regulation and brain cell connections. Clinical studies show a 92% improvement in focus and an 80% enhancement in memory. Its mini soft capsules have no fishy taste and are easy to swallow, with GMP/ISO certification for reliable quality. Other products may only contain single ingredients (like just Omega-3) or lack specificity.

Does Tenchi Smart Brain have side effects? Is it safe?

The product uses an all-natural formula with no side effects, free from artificial additives and stimulants, suitable for long-term use. All ingredients undergo strict quality testing, certified by GMP and ISO, and recommended by Japanese medical professionals. It's safe for the whole family.