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BASE-T

BASE-T

Men's daily support formula

Fadogia Agrestis

Fadogia Agrestis

Identity-Tested

Magnesium L Threonate Supplement | Brain Support Supplement | YAJU

Magnesium L-Threonate

98% Purity

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Shilajit Tablets

70% Fulvic Acid

Ashwagandha Root Capsules | Ashwagandha Powder Capsules | YAJU

Shoden® Ashwagandha

35% Withanolides

Black Ginger Extract | Black Ginger Supplement | YAJU

Black Ginger

10% 5,7-Dimethoxyflavone

Male Vitality

- BASE-T

- Shilajit

- Fadogia Agrestis

- Pine Pollen

Rest & Recovery

- Magnesium L-Threonat

- Shoden®️ Ashwagandha

- Ecklonia Cava

- Shilajit

Male Vitality

- Rhodiola Rosea

- Magnesium L-Threonate

- BASE-T

Physical Performance

- Rhodiola Rosea

- Black Ginger

- Beta-Ecdysterone

- Shilajit

Immunity

- Nigella Sativa

- BASE-T

- Ecklonia Cava

SHOP ALL

unleash your inner beast

unleash your inner beast

unleash your inner beast

unleash your inner beast

T-Stack
T-Stack
T-Stack
T-Stack
T-Stack
T-Stack
T-Stack
T-Stack
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T-Stack

T-Stack

BASE-T + Fadogia

64,00

Includes BASE-T & Fadogia Agrestis

Includes BASE-T & Fadogia Agrestis

BASE-T daily with zinc for normal testosterone levels*

Fadogia Agrestis as a short-term botanical power-up

Inspired by popular t-optimization protocols

Buy 2

SAVE 10%

Buy 3

SAVE 15%

Buy 4

SAVE 20%

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Order before 23:30 is shipped today

Free shipping from 50 in NL, BE & DE

Shipped from The Netherlands

The T-Stack is a simple but powerful stack formulated for men who want to take their testo-optimization seriously. BASE-T is the daily base, built around key nutrients like zinc, which contributes to normal testosterone levels in the blood. Fadogia Agrestis is added as a supplement that many people use in cycles as part of a testosterone-focused routine.

This stack is especially popular with men who train hard, want more drive and consistency, and want to build a stronger foundation.

  • Vitamin A (Retinol Palmitate) – 800 mcg
  • Vitamin D3 – 75 mcg (3000 IU)
  • Vitamin E (Tocopherols & Tocotrienols) – 15 mg
  • Vitamin K2 (MK-4) – 200 mcg
  • Vitamin C (Ascorbic Acid) – 80 mg
  • Benfotiamine – 80 mg
  • Vitamin B3 (Niacinamide) – 25 mg
  • Vitamin B6 (P5P) – 3.5 mg
  • Vitamin B9 (5-MTHF) – 200 mcg
  • Vitamin B12 (Methylcobalamin) – 100 mcg
  • Biotin – 300 mcg
  • Magnesium (Bisglycinate) – 90 mg elemental
  • Zinc (Bisglycinate) – 12 mg elemental
  • Copper (Bisglycinate) – 0.5 mg elemental
  • Selenium (Selenomethionine) – 55 mcg
  • Iodine (Potassium Iodide) – 150 mcg
  • Boron (Glycinate) – 6 mg
  • Shilajit (70% Fulvic Acid) – 400 mg
  • Ginger Extract (20% Gingerols) – 100 mg
  • PQQ – 10 mg
  • Dioscorea Nipponica (40% Protodioscin) – 125 mg
  • Fadogia Agrestis Stem Extract
  • HPMC Capsule
  • Iron Oxide

Claims are in line with EU regulations. We still encourage you to do your own research, as traditional use or new studies may go beyond what we’re allowed to say. Claims marked with a ** are on-hold claims.

  • Zinc contributes to the maintenance of normal testosterone levels in the blood*
  • Zinc contributes to normal fertility and reproduction*
  • Selenium contributes to normal spermatogenesis*
  • Selenium contributes to normal thyroid function*
  • Iodine contributes to the normal production of thyroid hormones and normal thyroid function*
  • Vitamin B6 contributes to the regulation of hormonal activity*

No health claims have been officially approved for Fadogia agrestis under current EU regulations.

That means we can’t make any specific statements about its effect on the body, even if traditional use or emerging studies suggest otherwise. We focus on purity, transparency, and quality, and encourage you to do your own research to decide if it fits your routine.

BASE-T: Take 3 capsules daily with a meal.

Fadogia Agrestis: Take 1–2 capsules daily during cycles only. 3 weeks on, 1 week off.

Ordered before 23:30, shipped the same day. All orders are shipped from the Netherlands.

All orders are traceable via a Track & Trace code that you will receive via email. This allows you to easily follow the progress of your package until it reaches your door.

YAJU delivers to the countries listed below.

Netherlands - Sent with PostNL

Estimated delivery time: 1-2 business days Costs: €3.95 ( Free Shipping above € 50.00)

Belgium - Sent with PostNL

Estimated delivery time: 1-2 business days

Cost: €4.95 (Free Shipping above €50.00)

Germany - Shipped with DHL

Estimated delivery time: 2-3 business days

Cost: €4.95 (Free Shipping above €50.00)

France - Shipped with DPD

Estimated delivery time: 3-4 working days

Cost: €9.95 (Free Shipping above €100.00)

Austria - Shipped with DPD

Estimated delivery time: 2-3 working days

Cost: €9.95 (Free Shipping above €100.00)

Denmark - Sent with GLS

Estimated delivery time: 2-3 working days

Cost: €6.95 (Free Shipping above €100.00)

Finland - Shipped with UPS

Estimated delivery time: 4-7 business days

Cost: €12.95 (Free Shipping above €125.00)

Italy - Shipped with UPS

Estimated delivery time: 2-3 business days

Cost: €8.95 (Free Shipping above €100.00)

Luxembourg - Shipped with DPD

Estimated delivery time: 3-4 working days

Cost: €8.95 (Free Shipping above €100.00)

Portugal - Shipped with UPS

Estimated delivery time: 3-4 business days

Cost: €8.95 (Free Shipping above €100.00)

Spain - Shipped with UPS

Estimated delivery time: 3-4 business days

Cost: €8.95 (Free Shipping above €100.00)

Sweden - Shipped with DPD

Estimated delivery time: 3-4 working days

Cost: €12.95 (Free Shipping above €125.00)

Ireland - Shipped with UPS

Estimated delivery time: 5-7 business days

Cost: €9.95 (Free Shipping above €100.00)

Bulgaria - Shipped with DHL

Estimated delivery time: 7-9 business days

Cost: €12.95 (Free Shipping above €150.00)

Greece - Shipped with UPS

Estimated delivery time: 4-5 business days

Cost: €9.95 (Free Shipping above €100.00)

Hungary - Shipped with DPD

Estimated delivery time: 3-4 working days

Cost: €8.95 (Free Shipping above €100.00)

Croatia - Shipped with DHL

Estimated delivery time: 5-6 business days

Cost: €8.95 (Free Shipping above €100.00)

Poland - Shipped with DPD

Estimated delivery time: 3-4 working days

Cost: €8.95 (Free Shipping above €100.00)

Romania - Sent with GLS

Estimated delivery time: 6-8 working days

Cost: €12.95 (Free Shipping above €100.00)

Slovenia - Sent with GLS E

stimated delivery time: 3-4 working days

Costs: €8.95 (Free Shipping above €100.00)

Czech Republic - Shipped with DPD

Estimated delivery time: 3-4 working days

Cost: €8.95 (Free Shipping above €100.00)

If you don't see your country listed but your country is in the EU, send us a message to info@yaju.nl and we might be able to ship to your country.

BUILD YOUR STACK

Third-Party Tested

By an ISO-certified independent lab

T-Stack

view latest test(s)

FAQ

UNLEASH

YOUR INNER BEAST

The T-Stack is a simple but powerful stack formulated for men who want to take their testo-optimization seriously. BASE-T is the daily base, built around key nutrients like zinc, which contributes to normal testosterone levels in the blood. Fadogia Agrestis is added as a supplement that many people use in cycles as part of a testosterone-focused routine.

This stack is especially popular with men who train hard, want more drive and consistency, and want to build a stronger foundation.

BASE-T: Take 3 capsules daily with a meal.

Fadogia Agrestis: Take 1–2 capsules daily during cycles only. 3 weeks on, 1 week off.

Claims are in line with EU regulations. We still encourage you to do your own research, as traditional use or new studies may go beyond what we’re allowed to say. Claims marked with a ** are on-hold claims.

  • Zinc contributes to the maintenance of normal testosterone levels in the blood*
  • Zinc contributes to normal fertility and reproduction*
  • Selenium contributes to normal spermatogenesis*
  • Selenium contributes to normal thyroid function*
  • Iodine contributes to the normal production of thyroid hormones and normal thyroid function*
  • Vitamin B6 contributes to the regulation of hormonal activity*

No health claims have been officially approved for Fadogia agrestis under current EU regulations.

That means we can’t make any specific statements about its effect on the body, even if traditional use or emerging studies suggest otherwise. We focus on purity, transparency, and quality, and encourage you to do your own research to decide if it fits your routine.

This product is a dietary supplement and cannot replace a varied diet or healthy lifestyle. Keep out of reach of children. Store in a dark, dry place with the lid tightly closed. Consult a doctor before use if pregnant, breastfeeding, or taking medication. Do not exceed the recommended daily dose.

Ordered before 23:30, shipped the same day. All orders are shipped from the Netherlands.

All orders are traceable via a Track & Trace code that you will receive via email. This allows you to easily follow the progress of your package until it reaches your door.

YAJU delivers to the countries listed below.

Netherlands - Sent with PostNL

Estimated delivery time: 1-2 business days Costs: €3.95 ( Free Shipping above € 50.00)

Belgium - Sent with PostNL

Estimated delivery time: 1-2 business days

Cost: €4.95 (Free Shipping above €50.00)

Germany - Shipped with DHL

Estimated delivery time: 2-3 business days

Cost: €4.95 (Free Shipping above €50.00)

France - Shipped with DPD

Estimated delivery time: 3-4 working days

Cost: €9.95 (Free Shipping above €100.00)

Austria - Shipped with DPD

Estimated delivery time: 2-3 working days

Cost: €9.95 (Free Shipping above €100.00)

Denmark - Sent with GLS

Estimated delivery time: 2-3 working days

Cost: €6.95 (Free Shipping above €100.00)

Finland - Shipped with UPS

Estimated delivery time: 4-7 business days

Cost: €12.95 (Free Shipping above €125.00)

Italy - Shipped with UPS

Estimated delivery time: 2-3 business days

Cost: €8.95 (Free Shipping above €100.00)

Luxembourg - Shipped with DPD

Estimated delivery time: 3-4 working days

Cost: €8.95 (Free Shipping above €100.00)

Portugal - Shipped with UPS

Estimated delivery time: 3-4 business days

Cost: €8.95 (Free Shipping above €100.00)

Spain - Shipped with UPS

Estimated delivery time: 3-4 business days

Cost: €8.95 (Free Shipping above €100.00)

Sweden - Shipped with DPD

Estimated delivery time: 3-4 working days

Cost: €12.95 (Free Shipping above €125.00)

Ireland - Shipped with UPS

Estimated delivery time: 5-7 business days

Cost: €9.95 (Free Shipping above €100.00)

Bulgaria - Shipped with DHL

Estimated delivery time: 7-9 business days

Cost: €12.95 (Free Shipping above €150.00)

Greece - Shipped with UPS

Estimated delivery time: 4-5 business days

Cost: €9.95 (Free Shipping above €100.00)

Hungary - Shipped with DPD

Estimated delivery time: 3-4 working days

Cost: €8.95 (Free Shipping above €100.00)

Croatia - Shipped with DHL

Estimated delivery time: 5-6 business days

Cost: €8.95 (Free Shipping above €100.00)

Poland - Shipped with DPD

Estimated delivery time: 3-4 working days

Cost: €8.95 (Free Shipping above €100.00)

Romania - Sent with GLS

Estimated delivery time: 6-8 working days

Cost: €12.95 (Free Shipping above €100.00)

Slovenia - Sent with GLS E

stimated delivery time: 3-4 working days

Costs: €8.95 (Free Shipping above €100.00)

Czech Republic - Shipped with DPD

Estimated delivery time: 3-4 working days

Cost: €8.95 (Free Shipping above €100.00)

If you don't see your country listed but your country is in the EU, send us a message to info@yaju.nl and we might be able to ship to your country.

Ingredients

  • Vitamin A (Retinol Palmitate) – 800 mcg
  • Vitamin D3 – 75 mcg (3000 IU)
  • Vitamin E (Tocopherols & Tocotrienols) – 15 mg
  • Vitamin K2 (MK-4) – 200 mcg
  • Vitamin C (Ascorbic Acid) – 80 mg
  • Benfotiamine – 80 mg
  • Vitamin B3 (Niacinamide) – 25 mg
  • Vitamin B6 (P5P) – 3.5 mg
  • Vitamin B9 (5-MTHF) – 200 mcg
  • Vitamin B12 (Methylcobalamin) – 100 mcg
  • Biotin – 300 mcg
  • Magnesium (Bisglycinate) – 90 mg elemental
  • Zinc (Bisglycinate) – 12 mg elemental
  • Copper (Bisglycinate) – 0.5 mg elemental
  • Selenium (Selenomethionine) – 55 mcg
  • Iodine (Potassium Iodide) – 150 mcg
  • Boron (Glycinate) – 6 mg
  • Shilajit (70% Fulvic Acid) – 400 mg
  • Ginger Extract (20% Gingerols) – 100 mg
  • PQQ – 10 mg
  • Dioscorea Nipponica (40% Protodioscin) – 125 mg
  • Fadogia Agrestis Stem Extract
  • HPMC Capsule
  • Iron Oxide

answers to all your questions

Faq

We are based in the Netherlands and our products are shipped from the Netherlands.

The T-Stack is made for men who want to take testo-optimization seriously.
BASE-T covers the fundamentals daily (including zinc, magnesium and vitamin D), while Fadogia is the short-term “extra layer” people often add in cycles.

We've conducted thorough HPTLC identity testing on both the raw stems and extract. This guarantees it's true Fadogia Agrestis.

Because testosterone optimization starts with the basics.
Zinc contributes to normal testosterone levels in the blood*, and vitamin D plays a role in the process of cell division*. BASE-T is formulated to cover these fundamentals daily, instead of relying on one exotic herb.

At YAJU, every batch is tested by our manufacturers, but we don’t rely solely on their results. To ensure absolute quality and accuracy, we verify each batch through independent ISO-certified labs (ISO/IEC 17025) like Alkemist Labs and Certified Laboratories, specialists in botanical and supplement testing. This additional layer of testing guarantees our products meet the highest standards for safety and effectiveness.

If you are not satisfied with your order, you can return it within 30 days. Please note that the products must be unopened to qualify for a return.

This product is a dietary supplement and cannot replace a varied diet or healthy lifestyle. Keep out of reach of children. Store in a dark, dry place with the lid tightly closed. Consult a doctor before use if pregnant, breastfeeding, or taking medication. Do not exceed the recommended daily dose.

Customer reviews

5.00 out of 5 based on 16 reviews

14

WHAT ALL THE "HYPE" IS ABOUT

verified

Excellent Customer Support

Lucas

Trustpilot

I managed to file an order with a incorrect zip code, but thanks to the diligent customer support at Yaju. I still got my order delivered to the correct adress.

verified

Great boost for intensive sessions!

Boris

YAJU OVER 9000 - PRE-WORKOUT

This is by far the most pure and effective preworkout I have ever had

verified

Feel Great!

Felipe

YAJU SHILAJIT TABLETS

This gives me a boost in energy and mood. I will keep taking it daily.

verified

Beautiful Extract

Y.

Shoden® Ashwagandha

This is very effective for improving sleep quality!

verified

Better sleep quality, no ‘brain fog’

Kasper

Magnesium L-Threonate

Now, with L-Threonate, I sleep even better. A kind of solid sleep with lots of dreams. During the day, I also suffer less from ‘brain fog’ and feel clearer. Definitely recommended

verified

Customer Support Is Perfect

Simon

Trustpilot

I never received my first order and contacted the customer support, they were very reactive and sent again free of charge. I am very happy with the service and the product.

verified

High Quality

JC

Trustpilot

YAJU is offering really good Supplements for active people. I can say my Training Performance became much better.

what we stand for

Quality Honesty Power

All our products are third-party, independent lab tested. 0 secrets, over 9000 performance

learn more

Full Transparancy

Standardized Extracts

what we stand for

Quality Honesty Power

All our products are third-party lab tested. 0 secrets, over 9000 performance

Independent lab tests

Research proven ingredients

YAJU

野獣

/ Jajuu / Noun

  1. Beast

######

  1. Monster

######

  1. Wild Animal

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About Us

We are two brothers who share a passion for sport, healthy lifestyle and have also grown up with Japanese anime from the 90s.

The result: YAJU.

our story

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