Sigma K

Second-generation formula — Sigma K combines some of nature’s most researched testosterone-supporting herbs including Tongkat Ali, Fadogia Agrestis, and Ashwagandha, along with essential nutrients for hormonal health. It contains no artificial colours, fillers, or preservatives.

Maintaining optimal testosterone levels is key to supporting muscle growth, energy, mood, libido, and overall male vitality.

Key Features of Sigma K

• Fadogia Agrestis Stem Extract
• Indonesian Tongkat Ali Root
• Ashwagandha standardised to 5% Withanolides
• Plus Magnesium, Zinc, Vitamin D3, and Boron
• 180 capsules per bottle
• No unnecessary binders, additives, or artificial colours

About Sigma K

Sigma K goes beyond basic herbal blends by combining premium-grade plant extracts with vital micronutrients known to support testosterone and general wellbeing. In addition to the benefits of Fadogia Agrestis, Indonesian Tongkat Ali, and Ashwagandha, this formula includes:

Magnesium Glycinate – a highly absorbable and gentle form of magnesium to aid muscle function and relaxation.

Zinc, Vitamin D3, and Boron – crucial for hormone regulation, immune function, and supporting healthy testosterone levels.

Indonesian Tongkat Ali Root

Also known as Eurycoma longifolia, Tongkat Ali is a Southeast Asian herb prized for its natural ability to support testosterone production. It may help improve muscle tone, endurance, and sexual health.

Indonesian-sourced Tongkat Ali is considered the highest quality due to its potency and traditional harvesting methods. It also offers stress support, energy enhancement, and anti-inflammatory properties — making it a well-rounded vitality booster.

Fadogia Agrestis Stem

Native to Africa, Fadogia Agrestis is known for its traditional use in enhancing male vitality. We use pure powdered stem — the most natural and unaltered form of the plant.

Research suggests it may help stimulate luteinising hormone, encouraging the body to produce testosterone naturally. It may also aid in muscle growth, libido, and antioxidant protection.

Ashwagandha

A well-known adaptogen from Ayurvedic medicine, Ashwagandha is valued for its ability to reduce stress, support sleep, and enhance cognitive function.

It may also assist with muscle development, energy, and hormone regulation. Ashwagandha has been linked to improved resilience against anxiety, better blood sugar control, and support for mood and memory.

How to Take Sigma K

As a food supplement, take 3 to 6 capsules per day, ideally spread throughout the day.

To maximise effectiveness, cycle usage: take daily for one month, then pause for at least one week before resuming.

Uncompromising Quality

Like all Kratox supplements, Sigma K is produced using only clean, raw ingredients with no artificial preservatives, colours, fillers, or binders.

Our Guarantee

If you are not completely satisfied after 45 days or one full bottle, we offer a full refund — no hassle, no questions asked.

*Product is intended for individuals aged 32 and over.