Choose between Purigen RETA 20mg and 40mg pen formats, with product information, batch documentation, discreet packaging and free 24hr Royal Mail 1st Class tracked delivery.
20mg pen format with discreet packaging, product information and tracked delivery.
40mg pen format with discreet packaging, product information and tracked delivery.
Testing should be easy to find, easy to understand and connected to the product you are viewing. Purigen product pages surface the relevant documentation alongside the pen information.
Product and batch documentation should be reviewed alongside the specific product being ordered.
RETA, short for retatrutide, is a triple receptor agonist that acts across three metabolic hormone pathways: GLP-1, GIP and glucagon receptors.
RETA acts across three different receptor pathways, each associated with different aspects of appetite, glucose and energy regulation.
GLP-1 receptor activity is associated with appetite regulation, insulin secretion and the slowing of gastric emptying.
GIP is an incretin hormone involved in the body's insulin response and the regulation of energy metabolism.
Glucagon receptor activity plays a role in glucose regulation and energy expenditure.
A straightforward process with the information customers usually want visible before checkout.
Compare the 20mg and 40mg product pages, pricing and available product documentation.
Complete your order through the secure checkout flow after reviewing the product and order information.
Orders are packed discreetly and sent with free 24hr Royal Mail 1st Class tracked delivery, with clear order updates.
Experiences shared by members of the Purigen community.
Before
After
Callum shared his experience after trying a number of previous diet and fitness approaches.
“I had tried everything to lose weight, you name it. Countless diets and fitness plans but nothing seemed to work. I made the leap into trying RETA and now I've been able to lose 15kg and I'm in the best shape of my life.”
Before
After
Sam shared her experience after reaching a plateau during her previous weight-loss journey.
“I hit a wall with Mounjaro where the weight loss stopped. It was costing me hundreds of pounds per month, so I made a change and I've now been able to continue my weight-loss journey. I feel and look like a new woman!”
“Purigen is the only source I trust. The quality is unmatched and results are real.”
“Fast shipping, great customer service, and top quality peptides every time.”
“Top-tier quality. I have seen better results in 8 weeks than I have in years.”
“Everything arrived quickly, well packed, and exactly as described.”
“Clear product pages, fast delivery, and customer support that actually replies.”
“Reliable service every order. Purigen has become my go-to supplier.”
Orders are packed securely and discreetly, with clear order updates and free 24hr Royal Mail 1st Class tracked delivery.
Shop ProductsFree 24hr Royal Mail 1st Class tracked delivery, with clear order updates after checkout.
Products are packed carefully and securely before leaving Purigen.
Orders are prepared in plain external packaging for a discreet delivery experience.
Quick answers about testing, product options, packaging, checkout and delivery.
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