TestoGain helps support steady testosterone production and function, and icariin-rich Epimedium boosting hormonal balance and improving responsiveness in hormone producing glands and tissues.

Available Sizes & Variants:

120 caps – convenient daily dose for ongoing support

Benefits & Features:

• Supports healthy testosterone production and function.
• TestoGain blends botanicals historically used for hormone health, including icariin-rich Epimedium, and is designed as a testosterone booster style blend.
• Tribulus terrestris is included alongside adaptogens like ashwagandha and Panax ginseng to support the blend.
• Gluten free and non GMO, ensuring clean, reliable ingredients.
• Manufactured under strict cGMP standards and in partnership with professional channels, TestoGain offers reliable potency and purity you can trust for ongoing wellness, day after day.

Douglas Laboratories has a long history of professional-grade supplements. TestoGain blends botanicals historically used for hormone health, including icariin-rich Epimedium. Tribulus terrestris is included alongside adaptogens like ashwagandha and Panax ginseng to support the blend. The formula uses standardised extracts (icariin 10%, L-Dopa 15%, Tribulus 45%, withanolides 7%, ginsenosides 3%), and the product is manufactured in the United States under cGMP, non-GMO and gluten-free. In the wider wellness world, people also discuss strategies like probiotics for gut health and milk thistle as part of a holistic approach.

A Phytocrine™ Proprietary Blend 1,310 mg:
Horny Goat Weed extract (Epimedium sagittatum, aerial parts, standardized to 10% icariin), Velvet bean extract (Mucuna pruriens, seed, standardized to 15% l-dopa), Gokhru fruit extract (Tribulus terrestris, standardized to 45% saponins), Maca root (Lepidium meyenii), Damiana leaf (Turnera diffusa), Muira Puama bark (Ptychopetalum olacoides), Eleutherococcus senticosus root extract (standardized to 0.8% eleutherosides), Tongkat Ali 100:1 extract (Eurycoma longifolia, root bark), Panax ginseng root extract (standardized to 3% ginsenosides), Ashwagandha root extract (Withania somnifera, standardized to 7% withanolides, 1% alkaloids, and 0.25% withaferine-A).

• GTIN: 310539038338
• Manufacturer: Douglas Labs
• Categories: Douglas Labs SupplementsNew Arrivals
• 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.

Recommended Use: 2-4 times daily. Take 1 capsule 2 to 3 times daily.

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

The Active Ingredient Is: Icariin (from Epimedium sagittatum)

Icariin is a flavonoid compound taken from the herb Epimedium sagittatum, commonly used in traditional botanical blends. This form concentrates the key active constituent found in the plant and is standardised to a defined percentage in many extracts.

This ingredient is provided as Icariin sourced from Epimedium, a known constituent in the TestoGain blend as part of the overall formula and linked with traditional use for herb-based hormone-support formulations.

What Does Icariin Do?

Icariin participates in normal physiological processes related to hormone-producing tissues, helping the body support healthy testosterone production and function in a balanced way.

Evidence from herbal research suggests Icariin may influence pathways relevant to hormone balance, with interpretation guided by NHS and EFSA-supported ideas of normal hormone function.

Douglas Laboratories is the brand we turn to for evidence-based formulation expertise and a trusted professional-grade heritage. This brand is renowned for supplying the professional market, including licensed healthcare practitioners, with products produced to high standards of ingredient purity and potency. Their long-standing presence in the industry and commitment to cGMP-based production underpins our confidence in a reliable supply partner for TestoGain. We value Douglas Laboratories for a disciplined approach to ingredient selection and a history of establishing trusted relationships with healthcare professionals, which aligns with our own vetting philosophy. The brand emphasises rigorous quality practices and ongoing dedication to product integrity, reflected in their manufacturing philosophy and line-up of high-grade ingredients. To ensure you understand how we safeguard quality, we rely on the guidance of our expert team of doctors, nurses, and nutritionists and our stated standards on our ingredient quality and purity standards.

Douglas Laboratories’ testing framework emphasises compliant production and potency, reinforced by cGMP compliance. This focus, combined with their professional reputation in the supplements space, makes them a standout partner for TestoGain. This brand was evaluated by our expert team of doctors, nurses, and nutritionists for compliance with our ingredient quality and purity standards, and chosen for the consistency and transparency it brings to this product.