Animal Stak is a dietary supplement built to support natural testosterone and growth hormone equilibrium while aiding recovery, featuring essential actives like Tongkat Ali and Ashwagandha driving gains. Universal Nutrition's Animal line carries a long standing reputation for rigorous manufacturing standards and reliable, athlete focused results. This product comes in a practical 21 day pack format, designed to fit busy training weeks and keep progression simple.

Available Sizes & Variants:

21 packs Animal Stak – daily packs designed for a complete 21 day cycle.

Benefits & Features:

• Supports natural hormone balance for stronger training.
• Tongkat Ali supports testosterone and strength during workouts, a key dietary supplement for serious lifters.
• Ashwagandha helps modulate cortisol levels, supporting faster recovery after workouts each session.
• Resveratrol, DIM and calcium D-glucarate form an aromatase combating complex for balanced hormones.
• The pack design keeps daily use simple, reliable, and easy to integrate into training cycles.

Animal Stak draws on Universal Nutrition's decades of experience in strength nutrition, rooted in a heritage built on quality and real world results. The formula stacks five complexes to support multiple anabolic pathways, with a daily pack designed for a 21 day cycle. The brand's commitment to GMP compliance and third party testing underpins safety and quality, while star actives like Tongkat Ali and Ashwagandha reinforce recovery and training readiness. It's a natural fit alongside a protein powder supplement routine and pairs well with Animal Pak for a complete programme.

AS Complex 1 (3 capsules), Tribulus Terrestris Extract (whole herb) 20% Saponins, Tribulus Terrestris Extract (whole plant) 40% Saponins, Fenugreek Powder (seed) (Trigonella foenum-graecum), Nettle Powder (root)(Urtica dioica), Maca Extract (root)(Lepidium meyenii) 0.6% Glucosinolates, AS Complex 2 (3 capsules), L-Arginine HCl, L-Glutamine, L-Ornithine HCl, AS Complex 3 (2 capsules), Vitamin D (Cholecalciferol), Vitamin B6 (Pyridoxine HCl), Magnesium (Magnesium Oxide), Zinc (Zinc Oxide), Polygonum cuspidatum Extract (root) 2% Trans-Resveratro, Green Tea Extract (leaf)(Camellia sinensis) 50% Polyphenols 2mg caffeine, L-Carnitine Fumarate, Quercetin, Astaxanthin, Milk Thistle Extract (seed) (Silybum marianum) 80% Silymarin, Astragalus Powder (root) (Astragalus membranaceus), Ashwagandha Extract (root) (Withania somnifera) 1.5% Withanolides, Lipoic Acid, Coenzyme Q10

• GTIN: 39442130235
• Manufacturer: Animal
• Categories: AnimalCHECKOUT UPSELLTestosterone 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 one pack of Animal Stak daily, preferably with food, to optimise absorption. Store in a cool, dry place away from direct sunlight. Keep out of reach of children. Consult a healthcare professional before use if you have a medical condition or are taking medication. Not intended for use by individuals under the age of 18.

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: Tongkat Ali (Eurycoma longifolia)

Tongkat Ali is an herb that helps with hormonal balance and steady energy play. This plant-based ingredient is commonly sourced from Southeast Asia and is studied for its potential to support testosterone-related processes.

This form is understood to be used in supplements to support athletic and recovery goals and is often paired with other actives to boost overall hormonal support.

What Does Tongkat Ali Do?

Tongkat Ali has been shown in research to raise total and free testosterone and to improve strength in resistance-trained men at a notable dosage level, which helps explain how the ingredient supports exercise capacity and recovery in line with EFSA-aligned nutrient function concepts.

Dr. Ismail of Universiti Kebangsaan Malaysia found that Tongkat Ali produced these testosterone-related effects in study participants, illustrating a potential mechanism for hormonal support in active individuals.

*This product is not intended to diagnose, treat, cure, or prevent any disease.

Animal stands shaped by a longstanding pledge to quality, with a heritage of strict manufacturing norms that has earned trust among dedicated lifters and bodybuilders. This brand’s reputation in the sports supplement space is built on steady delivery of dependable products and active engagement with the fitness community, which mirrors Welzo’s focus on provenance and openness. The partnership leans on Animal’s valued pack formulations and practical, athlete‑focused delivery, which lines up with our aim of offering convenient, well‑structured supplementation routines.

This brand is assessed by our expert team of doctors, nurses and nutritionists for alignment with our thorough testing protocols and certification expectations. Animal keeps GMP-compliant practices and runs third‑party testing for safety and quality, reinforcing its stance as a dependable partner for proteinous and multi‑ingredient blends. This product sits well with the brand’s multi‑ingredient approach, supporting a science‑led, recovery‑conscious path that resonates with Welzo’s standards. For safety and compliance details, we reference our UK‑specific safety and quality framework as part of our ongoing commitment to consumer protection.

This brand was chosen over others because of its established credibility, manufacturing excellence, and the alignment between Animal’s product design and Welzo’s vetting criteria, backed by our expert team of doctors, nurses and nutritionists and our thorough testing protocols.