Articles - DIX

Pot blanc de protéine en poudre sans marque sur fond bleu

Muscle, Strength & Mass Gain

How to choose the best whey protein: amino acid profile, spiking, additives and price

Isolate, native, concentrate: the name is not enough. Protein per 100 g, amino acid profile, amino spiking, additives and the true price per kilo of p...

Cyril Certain - 7 November 2026 - 16 min

Silver energy gel sachets next to a clear cycling bottle, with the title “Lactate gels, worth it?”

Energy & Performance

Lactic acid and exercise: do lactate gels actually work?

Lactate isn't a waste product, it's a fuel. But do the lactate gels from the 2026 Tour de France live up to the hype? What the studies in humans actua...

Cyril Certain - 3 November 2026 - 16 min

Pot de Tribulus, deux gélules sur une coupelle, verre d'eau et brin de plante séchée.

Testosterone & Vitality

Tribulus dosage: how much to take and when

How many capsules, at what time, for how long, should you cycle? The dosage of Tribulus terrestris raises plenty of questions, and quite a few bad ans...

Cyril Certain - 14 August 2026 - 4 min

Quatre pots de complements alignes avec un verre d'eau et un brin de Tribulus seche

Testosterone & Vitality

Tribulus stack: what to combine it with (and what to avoid)

“Tribulus and maca”, “tribulus zinc rhodiola”, “tribulus arginine”… these searches are everywhere, and for g...

Cyril Certain - 12 August 2026 - 5 min

Pot de Tribulus terrestris, gelules, verre d'eau et brin de plante seche pres d'une fenetre

Testosterone & Vitality

Tribulus for women: benefits, myths and precautions

Tribulus terrestris carries a very masculine image, tied to the gym and to testosterone. That is reductive, and even paradoxical: it may be in women t...

Cyril Certain - 8 August 2026 - 4 min

Pot de gélules de tribulus terrestris et verre d'eau dans la lumière du matin

Testosterone & Vitality

Tribulus for libido in men: what the research suggests

This is probably the one field where Tribulus terrestris truly earns its reputation. Not on testosterone, contrary to what the labels promise, but on ...

Cyril Certain - 29 July 2026 - 4 min

Pot de Tribulus terrestris affichant son taux de protodioscine, entouré de fruits séchés

Testosterone & Vitality

Best tribulus: how to choose (the 4-criteria grid)

Type “best tribulus” and you will land on dozens of rankings that contradict each other, often written to sell one particular product. Thi...

Cyril Certain - 21 July 2026 - 4 min

Complément Tribulus terrestris posé près d'un haltère, musculation et vitalité

Testosterone & Vitality

Tribulus, testosterone and bodybuilding: what the science says

If you have landed here, you were probably sold Tribulus terrestris as a testosterone booster for bodybuilding. I will be frank with you, even if it g...

Cyril Certain - 15 July 2026 - 4 min

Différentes formes de magnésium : poudre, gélules et comprimés

Health & Nutrition

Types of magnesium: which form should you take? Bisglycinate, citrate, malate and marine

Bisglycinate, citrate, malate, oxide or marine: which type of magnesium should you take, which is best absorbed, and is it worth combining several?

Cyril Certain - 11 July 2026 - 17 min

Branche de Tribulus terrestris avec ses fruits épineux, gélules et pot en verre, guide complet du Tribulus

Testosterone & Vitality

Tribulus terrestris: the complete honest guide

Few plants carry as many promises and as much suspicion as Tribulus terrestris. One day it is sold as a miracle testosterone booster; the next it is t...

Cyril Certain - 9 July 2026 - 7 min

Pot en verre de créatine monohydrate en poudre avec sa dosette, posés sur un plan neutre

Muscle, Strength & Mass Gain

Creatine: the complete guide (benefits, dosage, Creapure, safety)

Everything you need to know about creatine: proven benefits, dosage without a loading phase, kidney and hair safety, and how to choose a pure monohydr...

Cyril Certain - 8 July 2026 - 11 min

Bouteille de compléments alimentaires Omega-3 examinée avec une loupe, étiquette bien visible.

Health & Nutrition

How to choose the best omega 3 supplement: the 7 criteria that really matter

What is the best omega 3 supplement? Forget the rankings: freshness, real EPA and DHA content, form, source, purity, packaging and ratio are what coun...

Cyril Certain - 2 July 2026 - 18 min