Molecular Nutrition X-Factor is a sport supplement that helps lean muscle gains by delivering arachidonic acid to boost anabolic response during training, and this star ingredient, arachidonic acid, is sourced via ARASYN 4X ARA Oil for a concentrated, reliable dose, the brand's built its reputation on evidence-led formulas and clear quality standards you can trust.

Available Sizes & Variants:

100 softgels - convenient daily supply for training cycles

Benefits & Features:

• Lean muscle gains supported during workouts.
• Arachidonic acid, the star ingredient, fuels anabolic response and helps athletes push through plateaus while increasing strength, which keeps motivation high.
• Intended for daily use with meals to maximise muscle growth, and it fits into most training plans.
• ARASYN 4X ARA Oil delivers a concentrated dose in each softgel for consistent dosing, and that helps maintain rhythm.
• Kosher gelatin and glycerin support reliable capsule integrity, while Mortierella alpina provides a transparent, known source for the active ingredient, helping you trust every softgel as part of a serious training plan, which is exactly what athletes expect.

ARASYN 4X ARA Oil sits at the heart of X-Factor, a Molecular Nutrition line prized by athletes for scientifically informed formulas, and the arachidonic acid is sourced from Mortierella alpina, delivering a known, consistent active ingredient in every softgel, this product embodies the brand's commitment to quality and clarity, with a track record of helping trained athletes push through plateaus and see real gains in lean mass and strength, for those building a routine that includes supplements to reduce cortisol strategies, X-Factor fits in as a training-focused option.

Arachidonic Acid (ARASYN)(ARASYN 40% Arachidonic Acid in a proprietary fatty acid/oil blend), Arachidonic Acid (ARASYN)(ARASYN 40% Arachidonic Acid in a proprietary fatty acid/oil blend)

• GTIN: 834601001285
• Manufacturer: Molecular Nutrition
• Categories: Molecular NutritionTestosterone Supplements & Natural Boosters
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 1 softgel 3-4 times daily with meals for 50 days. Do not exceed 4 softgels per day. After completing the cycle, take a break for 50 days before repeating. Store in a cool, dry place away from direct sunlight. Warnings: Do not take this product if you are pregnant or nursing, or have any history of diabetes, asthma, high blood pressure, high cholesterol, arthritis, heart disease, stroke, colitis, irritable bowel syndrome, cancer, prostate enlargement, or any inflammatory disease. Consult with your physician before use if you are taking any medication(s) or suffer from any health condition. Discontinue use if you notice strong gastrointestinal or other side effects.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Arachidronic Acid

Arachidonic acid, a polyunsaturated fatty acid, is a main supplement ingredient that helps trigger an anabolic response during resistance training.

This form is Mortierella alpina ARASYN 4X ARA Oil, delivering arachidonic acid in a concentrated oil format used in softgels.

What Does Arachidonic Acid Do?

Studies show that daily arachidonic acid supplementation can be linked to increases in lean body mass, upper-body strength and peak anaerobic power in trained athletes over eight weeks.

Researchers have noted that this dosing protocol might offer a viable anabolic agent for athletes chasing performance gains, with effects seen when taken with meals over eight weeks.

This product is not intended to diagnose, treat, cure, or prevent any disease [in any way].

Molecular Nutrition is known for an evidence-based formulation approach, demonstrated by its use of ARASYN 4X ARA Oil to deliver arachidonic acid in a concentrated, reliable form. This sourcing choice reflects a commitment to a well characterised ingredient platform and a traceable supply that supports consistent product quality. The brand’s focus on a proprietary enhancement of ARA signals a science-driven mindset aligned with our expectations for transparency and potency.

Welzo evaluates brands against clear criteria including ingredient sourcing integrity, rigorous testing, and regulatory alignment. Our team emphasises supplier transparency, robust quality controls, and compliance with industry standards, which we actively verify with Welzo's healthcare professionals and through our rigorous testing protocols. This brand’s formulation and sourcing practices align with those evaluations, supporting a trustworthy foundation for X-Factor, Anabolic Catalyst.

Product-fit and credibility go hand in hand. The clinically studied 1,000–1,500 mg ARA dosing used in trials demonstrates lean mass, strength, and power benefits in trained individuals, reinforcing why this brand is well suited to this supplement. Our selection reflects both the brand’s specialised platform and our dedicated evaluation process by Welzo's healthcare professionals and our rigorous testing protocols for quality and safety.