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Blackstone Labs Metha-Quad Extreme

Blackstone Labs 30 Tabs

£81.14Tax includedLowest price in 30 days: £81.14

Purchase this product now and earn 81 Points!

In stock

Orders placed before 4 pm are shipped on the same day

Free shipping: UK over £89, EU over £150
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Pay later with Klarna - interest free
14-Day Returns

Metha‑Quad Extreme is a tablet-based supplement featuring a proprietary compound formulated for structured, time-bound use by experienced adult users following planned supplementation routines. Each pack provides a controlled supply for daily intake over a defined period.

Packaging Info

  • 30 tablets per bottle, providing up to 30 days of use when taken as directed.

Key Components (per tablet)




  • Core compound – approx. 30 mgA precisely measured ingredient is included as part of controlled regimens.


  • Support blend – approx. 15 mgA plant-derived microblend is added to enhance formulation consistency and stability.


Other formula components may include microcrystalline cellulose, capsule binders, magnesium stearate, silicon dioxide stabilisers, and natural colourants: these support product integrity and predictable daily delivery.

Suggested Use




  • Take one tablet daily, preferably with a meal.


  • Do not exceed one tablet in any 24 hours.


  • Typical usage cycle: up to 4 to 6 weeks, followed by a planned break or transition phase based on your routine.


DOSAGE-TIMING-FALLOW-UP:


Supplementation Cycle:


On-Cycle Phase:


Duration: Generally lasts between 4 and 8 weeks.
Dosage: Take one tablet in the morning with a meal. The food’s presence may enhance the compounds’ bioavailability and mitigate gastrointestinal discomfort.
Training: Intense resistance training and a high-protein diet are recommended to maximise muscle growth and strength gains during this phase.
On-Cycle Support: To counteract the potential adverse effects of prohormones, it is advised to use on-cycle support supplements such as liver protectants and blood pressure managers.

Off-Cycle Phase:


Duration: Typically equal in length to the on-cycle phase, allowing the body to recover.
Abstinence: No prohormone supplementation during this phase.
Maintenance: Continue with a moderate exercise regimen and balanced nutrition to preserve gains.

Post-Cycle Therapy (PCT):


Natural Hormone Recovery: Supplements such as Tribulus Terrestris and Fenugreek may help stimulate natural testosterone production.
Estrogen Regulation: aromatase inhibitors or SERMs may be required to control potential spikes in estrogen levels.
Recovery Aids: Adaptogens like Ashwagandha can aid in stress management and recovery.

Protective Measures:


LiveSupportrt: Milk thistle or NAC (N-Acetyl Cysteine) are commonly used to support liver health during and after a prohormone cycle.
Heart Health: Omega-3 fatty acids and CoQ10 are recommended for cardiovascular support.
Joint Care Gl ucosamine and chondroitin may help protect joints under increased stress due to enhanced strength and muscle mass.

Monitoring and Adjustments:


BloodWorkk: Regular monitoring before, during, and after your cycle can provide critical insights into how your body responds.
Dose Adjustments: If you experience adverse effects, you may need to adjust the dose or discontinue use immediately and seek medical advice.

Intended User


This product is intended for healthy adult males aged 21 and over who are already familiar with structured supplementation processes. It is not suitable for women, minors, or individuals with existing health conditions. A consultation with a qualified healthcare provider is recommended before use.

Storage & Safety Tips




  • Store in a cool, dry place, away from direct light and moisture.


  • Keep out of reach of children.


  • Use only as directed.


  • Do not exceed the recommended daily dosage.


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.

No product reviews yet — add the first one!

Need help?

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.

Once your order is shipped, you will receive a confirmation email with a tracking number. You can use this number to track your order on the carrier’s website.

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.

Yes, we regularly offer discounts and promotions on various products. Sign up for our newsletter or follow us on social media to stay updated on the latest deals.

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.

Your order still needs to be completed” Our payment”gateway most likely did not accept your card. In such cases, the bank often holds the funds as “pending, ” which should be returned to your account within three business days.

If your card was not accepted when placing an order, please try using a different card or select an alternative payment gateway from the list on the payment page after placing your order.

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.

First, you’ll need to register for an account with our store to earn your points. Our points system lets you earn points on every purchase. For every £1 spent on our website, you earn 1 point. For every 100 points, you get £1 in store credit.

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
  • No VAT or duty on delivery
  • 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.

Blackstone Labs

Blackstone Labs

Are bigger, better, and more impressive results what drives the core of your training approach? Then you won’t want to pass up on our exciting lineup of products from one of the most hardcore brands out there – Blackstone Labs. They are celebrated for exactly this: their undying and unrelenting determination to craft products that are perfect for serious bodybuilders, powerlifters, and athletes. At Cross the Limits, we’d be remiss if we said we don’t agree with this approach. If you want maximum potency and performance, Blackstone Labs supplements are the choice for you!

Blackstone Labs Metha-Quad Extreme 30 Caps

Blackstone Labs

£81.14Tax includedLowest price in 30 days: £81.14

Purchase this product now and earn 81 Points!

In stock

Orders placed before 4 pm are shipped on the same day

Free shipping: UK over £89, EU over £150
Secure Card Payments
visa master gpay apay
Pay later with Klarna - interest free
14-Day Returns
Blackstone Labs Metha-Quad Extreme 30 Caps

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.

No product reviews yet — add the first one!

Need help?

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.

Once your order is shipped, you will receive a confirmation email with a tracking number. You can use this number to track your order on the carrier’s website.

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.

Yes, we regularly offer discounts and promotions on various products. Sign up for our newsletter or follow us on social media to stay updated on the latest deals.

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.

Your order still needs to be completed” Our payment”gateway most likely did not accept your card. In such cases, the bank often holds the funds as “pending, ” which should be returned to your account within three business days.

If your card was not accepted when placing an order, please try using a different card or select an alternative payment gateway from the list on the payment page after placing your order.

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.

First, you’ll need to register for an account with our store to earn your points. Our points system lets you earn points on every purchase. For every £1 spent on our website, you earn 1 point. For every 100 points, you get £1 in store credit.

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
  • No VAT or duty on delivery
  • 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.

Blackstone Labs

Blackstone Labs

Are bigger, better, and more impressive results what drives the core of your training approach? Then you won’t want to pass up on our exciting lineup of products from one of the most hardcore brands out there – Blackstone Labs. They are celebrated for exactly this: their undying and unrelenting determination to craft products that are perfect for serious bodybuilders, powerlifters, and athletes. At Cross the Limits, we’d be remiss if we said we don’t agree with this approach. If you want maximum potency and performance, Blackstone Labs supplements are the choice for you!