+96 ng/dL of testosterone in 8 weeks Wankhede et al. · 2015Bench press +46 kg vs +26 kg with placebo J Int Soc Sports Nutr · 2015600 mg of KSM-66 a day in men aged 18 to 50 Randomized trial · 8 weeks+96 ng/dL of testosterone in 8 weeks Wankhede et al. · 2015Bench press +46 kg vs +26 kg with placebo J Int Soc Sports Nutr · 2015600 mg of KSM-66 a day in men aged 18 to 50 Randomized trial · 8 weeks+96 ng/dL of testosterone in 8 weeks Wankhede et al. · 2015Bench press +46 kg vs +26 kg with placebo J Int Soc Sports Nutr · 2015600 mg of KSM-66 a day in men aged 18 to 50 Randomized trial · 8 weeks+96 ng/dL of testosterone in 8 weeks Wankhede et al. · 2015Bench press +46 kg vs +26 kg with placebo J Int Soc Sports Nutr · 2015600 mg of KSM-66 a day in men aged 18 to 50 Randomized trial · 8 weeks
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ONYX TESTO: What it does for you
ONYX TESTO: What's inside
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ONYX TESTO: How to take it
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“+96 ng/dL of testosterone in 8 weeks”
Clinical study Wankhede et al. · 2015
“Bench press +46 kg vs +26 kg with placebo”
Clinical study J Int Soc Sports Nutr · 2015
“600 mg of KSM-66 a day in men aged 18 to 50”
Clinical study Randomized trial · 8 weeks
See supplement facts
Natural testosterone for men

ONYX TESTO

Get back to your best.

Healthy testosterone levels are the foundation of your energy, your strength and your drive. ONYX TESTO combines ashwagandha KSM-66 with eight extracts and minerals to support your natural production, at the gym and in the bedroom.*

  • Supports stamina and strength*
  • Helps manage stress and anxiety*
  • Supports focus and memory*
  • Ashwagandha KSM-66, the most studied extract
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Guarantee
30 days
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How it works

Hormones in balance.

01

Ashwagandha against stress

High cortisol holds back testosterone. Ashwagandha KSM-66 helps your body manage stress and maintain hormonal balance.*

02

Nitrates to perform

Arugula extract provides natural nitrates, which support performance in intense and endurance exercise.*

03

Testosterone for the mind

Beyond muscle: healthy testosterone levels are linked to better mood, more motivation and better memory.*

Before anyone else

Vigor is trained.

What's inside

Open it and look

Every capsule holds what the label says, with the amount of each ingredient in plain view in the table. Spin it and open it.

  • Vegetable capsule (HPMC)
  • 90 capsules per bottle · 3 a day
  • Amounts per serving on the label
  • Performance blend1,335 mg
  • Vigor blend900 mg
  • Vitamin D62.5 mcg
  • Zinc20 mg
  • Ashwagandha KSM-66in the blend
  • Tongkat aliin the blend
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The formula

Two blends. One mission.

A 1,335 mg performance blend and a 900 mg vigor blend per serving, plus zinc and vitamin D.

AshwagandhaKSM-66

Ashwagandha

Helps reduce stress and supports testosterone levels.*

TribulusExtract

Tribulus

A plant used for centuries for male vigor and desire.*

FenugreekExtract

Fenugreek

Supports libido and free testosterone.*

EpimediumExtract

Epimedium

“Horny goat weed”: a traditional herb for desire.*

Zinc20 mg

Zinc

The raw material of testosterone.*

Vitamin D62.5 mcg

Vitamin D

2,500 IU. Essential for hormonal balance.*

Tongkat aliBlend

Tongkat ali

A Southeast Asian root, traditional for male vigor.*

Mucuna pruriensBlend

Mucuna pruriens

A legume rich in L-dopa, linked to mood and motivation.*

Arugula extractBlend

Arugula extract

Natural nitrates that support physical performance.*

BoronBlend

Boron

A trace mineral that supports free testosterone.*

Benefits*

What it can do for you

May increase muscle strength*
May improve cognitive function*
Helps increase blood flow*
Supports strength and bone density*
Improves sexual desire and satisfaction*
Supports healthy sperm production*
What to expect

Your progress

01

Ignition

  • You sleep better and wake up with more energy
  • Less stress during the day
  • You want to train
02

Spark

  • More desire and more confidence
  • Better recovery between workouts
  • A steadier mood
03

Liftoff

  • Sustained strength and vigor
  • You recognize yourself again
  • Your new normal

*Individual results may vary.

Supplement facts

Everything in plain view

Serving size: 3 capsules · Servings per container: 30

Active ingredientPer serving
Vitamin D62.5 mcg
Zinc20 mg
Iron0.4 mg
Performance blend: ashwagandha KSM-66 (organic), arugula extract, tribulus, boron1,335 mg
Vigor blend: fenugreek, epimedium, tongkat ali, mucuna pruriens900 mg
Other ingredients: hydroxypropyl methylcellulose (vegetable capsule), magnesium stearate, microcrystalline cellulose and silicon dioxide.
What the studies say

Ciencia, no promesas

Ashwagandha KSM-66 · TESTO
+96 ng/dLof testosterone in 8 weeks (placebo: +18)

57 men aged 18 to 50 on a strength program: with KSM-66 their testosterone and strength rose more (bench press +46 kg vs +26 kg).

8-week randomized trial with 600 mg a day, in young, healthy men.

Wankhede et al. · J Int Soc Sports Nutr · 2015

Studies on the ingredients, not on ONYX as a finished product. The dose used in each study is shown on its card. This supplement does not replace medical treatment.

The difference

ONYX TESTO vs the rest

ONYX TESTO
Standardized extractsKSM-66, the most studied ashwagandha extract
Nine activesHormones, desire and performance in one formula
No hormonesSupports your natural production, doesn't replace it
Other brands
Unbacked promisesTestimonials and nothing else
Under- or overdosedRandom doses, with risks
Full of additivesPlenty of fillers and synthetics
How to use

Three times a day

Morning
AM

Morning

1 capsule with breakfast.

Afternoon
MD

Afternoon

1 capsule with lunch.

Evening
PM

Evening

1 capsule with dinner. At least 30 days in a row.

Plain unbranded box at the door

100% discreet shipping

Your order arrives in a plain box, with no logo or product name on the outside. The sender just reads “Customer service”. What you buy is your business.

Reviews

Already tried it?

Tell us how ONYX TESTO worked for you. We publish real customer reviews, with their name and without editing what they say.

Questions

About ONYX TESTO

How long does it take to work?

Some men notice changes within a few days; the usual is 2 to 3 weeks. We recommend taking it for at least 30 days in a row.

How do I know if my testosterone is low?

The most common signs are low sex drive, fatigue, low mood, more belly fat and difficulty getting an erection. The only way to know is a blood test: ask your doctor for one.

When do I take it?

Three times a day —morning, afternoon and evening— with food.

Can I combine it with other supplements?

In general it has a low risk of interactions, and it pairs very well with ONYX NITRO. Still, ask your doctor before starting any supplement, especially if you take medication or have a thyroid condition.

Does it help with firmness?

Indirectly: testosterone supports desire, and epimedium and arugula support blood flow. For firmness, the direct ally is ONYX NITRO.*

What if it doesn't work for me?

You have a 30-day guarantee. If you're not satisfied, write to us and we'll refund your money.

Try it risk-free.

If you don’t feel the difference in 30 days, write to us and we’ll refund your money. No fine print.

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