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Retatrutide 20mg & 40mg (R&D Only)
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High-quality research peptide for advanced studies and development purposes only.
Size
👆Click the button to change MG
40 mg
£219.99
The Rettanox Promise
Notice
Safety Disclaimer
Our peptides are exclusively intended for research purposes and are not authorised for use in humans or animals
Premium Peptides
Premium Research Peptides
Tested. Verified. Trusted. Our products are formulated for research, produced and scientifically verified, and backed by third-party lab data to ensure that you can trust the accuracy and consistency. Not for human or animal consumption.
Lab tested quality
Third-party verified
Premium grade
Research grade
How to Store
Storage
Be sure to store correctly once opened
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Keep unused pens refrigerated at 2–8°C until needed.
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Once opened, you can store the pen at room temperature (max 30°C) but recommend always to store in a fridge, when not in use.
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Always recap the pen and remove the needle after each use.
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Never reuse needles or store the pen with a needle attached.
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Dispose of used needles.
Customer Reviews
Over 2000+ Happy Customers
Don't just take our word for it, hear what our customers are saying...
"I was skeptical at first, but Rettanox completely exceeded my expectations. Within weeks I felt sharper, more focused, and more in control of my routine. This is now a non-negotiable part of my daily life.”
"Finally a company that actually delivers on its promises. Rettanox is consistent, effective, and feels premium. Customer service is also top-notch, I felt looked after the whole way through.”
"As someone who balances long workdays with training, I needed something that could support both my mind and body. Rettanox gave me the extra edge without any crash. Couldn’t recommend it more.”
"What stood out most was how smooth everything felt, from ordering to delivery to the actual results. Rettanox is clean, professional, and effective. I’ve already told half my friends about it.”
"I’ve tried plenty of other products, but nothing worked as consistently as Rettanox. The quality speaks for itself, you can tell a lot of thought went into making this. Absolutely worth every penny.”
"I didn’t realize how much of a difference Rettanox would make until I noticed my energy and confidence steadily coming back. It feels like I’ve unlocked a better version of myself."
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