£56.16Tax includedLowest price in 30 days: £56.16
In stock
Orders placed before 4 pm are shipped on the same day
When it comes to estrogen suppression, nothing works better than Blackstone Labs Letro XT. This powerful aromatase inhibitor is designed to eliminate estrogen, making it perfect for athletes undergoing intense cycles or experiencing high estrogen side effects such as water retention, gynecomastia, or persistent fat.
Letro XT combines advanced anti-estrogen compounds in a liposomal delivery system for enhanced absorption and faster results. Whether used during a cycle or as part of post-cycle therapy (PCT), it helps optimise hormonal balance, dry out your physique, and protect hard-earned gains. Beginners should approach prohormones with caution, as these compounds are more suitable for advanced athletes who understand the risks.
❌ Destroys excess estrogen at the root
💪 Preserves muscle mass and strength during PCT
💧 Reduces water retention and puffiness
🔄 Prevents estrogen rebound post-cycle
💡 Increases natural testosterone output
⚙️ Improves body composition and vascularity
🚫 Helps combat gynecomastia symptoms
This is an advanced tool for serious bodybuilders focused on clean gains, hormonal optimisation, and aesthetic definition.
Letro XT is best suited for:
Bodybuilders running aromatising prohormone or SARM cycles
Users prone to estrogenic side effects (bloating, gyno)
Lifters seeking a dry, hard physique with reduced water retention
Athletes focused on maintaining gains during PCT.
Those wanting to reduce estrogen while increasing testosterone naturally
Not for beginners — this is a hardcore anti-estrogen with real potency. Use responsibly.
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:
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.
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!
No product reviews yet — add the first one!