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from £38.63

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Hi-Tech Pharmaceuticals Jack'D Up

Hi-Tech Pharmaceuticals Jack'D Up is one of the few pre-workout products on the world market, which in this seemingly not very complicated composition, exhibits incredible efficiency. The bold formulation of the product has been composed using only the most effective substances, taking into account their required doses.

The Jack’D Up product includes, among others:


Beta-Alanine
together with l-histidine form a dipeptide – carnosine. Carnosine is released from the cells when the pH drops, thus preventing the increase of muscle acidity, which may translate into less pain and better endurance in training. It may contribute to a more efficient build of dry muscle, it also supports the fight against oxidative stress and may delay the aging of the body.
Anhydrous caffeine
the most-known stimulant compound in the world. It has a stimulating effect, lowers the level of Adenosine, inhibits the breakdown of cAMP
L-Arginine
The most well-known property of arginine is the synthesis of nitric oxide – a substance that dilates blood vessels. Thus, arginine contributes to a more efficient and faster transport of nutrients and oxygen to working cells, as well as the discharge of toxic metabolic compounds, inhibiting metabolic processes.
1,3-Dimethylamylanime HCL
in other words, methylhexanamine or geramine, in short DMAA. Geranium has strong sympathomimetic properties. By blocking norepinexxrine uptake, it increases its concentration, leading to increased nervous excitability. This increases concentration, clarity of thinking and motivates the body to act. Raising the body temperature has a thermogenic effect. It supports the loss of unnecessary fat.
Augments
The effect of Augments as a precursor of nitric oxide is related to its interaction with alpha-adrenergic and imidazole receptors. It also significantly influences the activity of the ornithine decarboxylase enzyme and NOS isoenzymes. The right dose of Augments effectively promotes the secretion of nitric oxide in the human body, which translates into a strong muscle pump feeling. Enlargement of blood vessels supports blood and nutrients supply to working muscles, showing support for muscle regeneration and building. In studies using Augments, it has been shown that its action may support protein synthesis even twice, which in addition to the action of Augments itself, is also related to the action increasing the inflow of building components to muscle tissue.

Dosage:


1 serving 30 minutes before training.

Disclaimer:


This product is a dietary supplement and should not be used as a substitute for a varied diet. Do not exceed the recommended daily dose. Keep out of reach of children. If you are pregnant, nursing, taking medication, or have a medical condition, consult your healthcare professional before use. This product contains Aphrodyne and may cause side effects such as increased heart rate, anxiety, or elevated blood pressure. Use with caution and discontinue use if any adverse reactions occur. Store in a cool, dry place away from direct sunlight. The Food and Drug Administration or any other governmental authority has not evaluated the statements made here. This product is not intended to diagnose, treat, cure, or prevent any disease.

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We offer a variety of sports supplements, including muscle-building products, pre-workout formulas, post-exercise recovery items, vitamins and minerals, amino acids, and more.

All our supplements are sourced from reputable manufacturers and undergo rigorous quality control to ensure safety and efficacy. However, we recommend consulting a healthcare professional before starting any new supplement regimen.

Choosing the right supplement depends on your fitness goals, dietary needs, and any existing health conditions. Our product descriptions provide detailed information to help you make an informed decision. Contact our customer support team for personalised advice if you need more clarification.

Placing an order is simple. Please browse our products, add the items you’d like to your cart, and proceed to checkout. You can pay using credit or debit cards, Klarna, or LayBuy.

We offer both domestic and international shipping. Orders are typically processed within 1-2 business days; however, shipping times may vary by location. For detailed information, please refer to our Shipping Policy page.

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We offer a carrier ‘s-day return policy for unopened and unused products. If you are unsatisfied with your purchase, please contact our customer support team to initiate a return. For more details, please visit our Return Policy page.

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Absolutely! Our team of experts is here to help. Contact us via our website, and we will provide personalised recommendations tailored to your fitness goals and dietary needs.

We offer a selection of vegan—and vegetarian-friendly supplements. For specific information, please check the product descriptions or use the filter options on our website to find suitable products.

Please email our customer support team at info@crossthelimits.co.uk or speak directly to our AI bot assistant. We aim to respond to all inquiries within 24 hours.

We offer wholesale options for gyms, fitness centres, and retailers. For more information, please contact our wholesale department at wholesale@crossthelimits.co.uk.

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We dispatch parcels to the EU every Friday. Your order must be placed by 10 AM on Friday to be included in that week’s shipment. If you order earlier in the week (e.g. on Sunday), your parcel will stay in the UK until Thursday, when it is transferred to our EU fulfilment centre. Once it arrives (usually within 5-7 days), we will send it via DPD, and you will receive your tracking details via email. Please note that the journey from the UK to the EU warehouse does not include tracking—tracking is only provided once your parcel is dispatched from the EU warehouse.

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For example, if you order £100, you will earn 100 points (equivalent to £1), which you can redeem on your next order.

Yes! You can pay for your supplements using Bitcoin (BTC), Ethereum (ETH), USDT, and many other cryptocurrencies via our secure payment partner, NOWPayments.

To ensure reliable delivery and avoid customs issues, all UK orders are shipped via a consolidated weekly route to our EU hub.

This method guarantees:

  • No customs delays
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  • One fixed shipping fee (£15)

Orders placed after Friday may be included in the following dispatch window.

Delivery time can be up to 2–2.5 weeks, depending on order timing.

All parcels are delivered via DPD with EU tracking provided after dispatch.