Swanson LongJax Eurycoma Longifolia (Tongkat Ali) Extract 20:1 30 Capsules – Malaysian Herb for Testosterone & Libido Support

Swanson LongJax® provides a potent 20:1 standardised extract of Eurycoma longifolia root — commonly known as Tongkat Ali or Long Jack — a Malaysian herb with extensive traditional use and growing research support for improving testosterone levels, libido, physical performance, and stress resilience. The 20:1 extract concentration means each capsule provides the equivalent of 20 times its weight in raw herb — ensuring clinically relevant levels of active eurycomanone and quassinoid compounds. 30 capsules.

• Eurycoma longifolia 20:1 extract — 20x concentrated potency
• Supports healthy testosterone levels and male vitality
• Improves libido, sexual health, and energy
• Supports physical performance and muscle strength
• 30 capsules — Swanson LongJax® premium quality

Frequently Asked Questions

How does Tongkat Ali increase testosterone?

Eurycoma longifolia appears to support testosterone through several pathways: eurycomanone and quassinoids inhibit the conversion of testosterone to oestrogen (via aromatase inhibition), reduce cortisol levels (which suppresses testosterone production), and stimulate Leydig cell function in the testes. Multiple clinical trials show measurable increases in free and total testosterone in men supplementing with standardised Tongkat Ali extract, with particular effects in men with age-related testosterone decline or stress-induced suppression.

What is the difference between a 20:1 extract and standard Tongkat Ali supplements?

A 20:1 extract means 20kg of raw Eurycoma root is concentrated down to 1kg of extract, providing 20 times the concentration of active compounds compared to a raw herb capsule. This ensures consistent, clinically meaningful levels of the active constituents (eurycomanone, quassinoids) that drive the supplement's therapeutic effects. Raw or low-ratio extracts may not provide sufficient active compounds to produce the effects documented in clinical research.

How quickly does Tongkat Ali work?

Clinical trials typically show meaningful improvements in testosterone, libido, and energy within 4–8 weeks of consistent daily use. Physical performance and muscle strength improvements develop over 8–12 weeks. Tongkat Ali is a tonic herb that builds effect over consistent supplementation — single doses or short-term use provide limited benefit.

Is Tongkat Ali safe for long-term use?

Tongkat Ali has been safely consumed as a traditional tonic beverage in Malaysia for generations. Clinical studies show good safety profiles at standardised extract doses. It is not recommended for women (particularly pregnant or breastfeeding women), men with hormone-sensitive cancers, or those on testosterone replacement therapy without medical supervision. PSA monitoring is advisable for older men with prostate concerns.

Can I combine Tongkat Ali with other testosterone supplements?

Tongkat Ali can be combined with other supportive nutrients (zinc, magnesium, vitamin D3) for comprehensive testosterone support. Avoid stacking with other hormonal or androgenic supplements without medical guidance. Zinc and magnesium (ZMA) alongside Tongkat Ali is a popular combination for men's health.