I was looking for a new provider of peptides when I placed a call into DoubleR. I was blown away to have the good fortune of speaking with the owner of the company. I have owned my own businesses... See more
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Review summary
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Made another purchase with DoubleRLabs today. Price was great and so was the service. Sometimes I go through the Peptide Price Tool that links to the website. This was is pretty glitchy and kicks me... See more
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I placed an order and it was processed and shipped out the same day. I received it in 2 days and was updated throughout the whole process from order received to delivered to me. Peptides were packed c... See more
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Long story short i wanted the absolute lowest price on glp-3 for the upcoming holidays. Double R exceeded my expectations and I was able to get RT at the lowest price in the industry without a doubt.... See more
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Company details
Written by the company
Double R Labs is a research-driven peptide and performance-science company built on one simple promise: deliver clean, correctly-dosed, third-party tested products with speed, transparency, and real customer support. No games, no excuses. What makes us different is our mentality. We don’t act like some faceless warehouse pushing vials. We operate like a small, dedicated lab that cares about consistency, accuracy, and trust. Every batch is sourced from vetted manufacturers, verified through independent third-party testing, and paired with scannable QR codes so customers can confirm quality for themselves. We focus heavily on fulfillment speed. Orders placed before 2pm PST ship the same day, and customers who spend over $200 receive free UPS 2-Day Air. Our packaging, QC, and logistics systems are constantly being refined to make sure orders arrive fast, protected, and exactly as expected. Our community is a big part of what we do. We support lifters, athletes, biohackers, and everyday people who simply want reliable research materials without the nonsense this industry is known for. We stay active across multiple platforms, answer questions quickly, and take pride in giving customers a level of service that’s rare in the peptide space. If you want consistent quality, fast shipping, and a company that actually stands behind what it sells, you’re in the right place.
Same-Day Shipping on All Orders Placed Before 2pm PST
Free UPS 2-Day Air on orders over $200.
Order before 2pm PST and it ships today. Orders $200+ get free UPS 2-Day Air. We keep fulfillment tight so your research isn’t waiting around for packages.
Contact info
6549 Mission Gorge Rd #314, 92120, San Diego, United States
- 8587334199
- Info@DoubleRlabs.is
- doublerlabs.is
4.6
Excellent
104 reviews
Asks customers to review
This company invites their customers to review, whether positive or negative
Replied to 100% of negative reviews
Typically replies within 24 hours
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Double R never short on customer…
Double R never short on customer service. Im very happy with delivery and service they provide..thank you guy's
January 21, 2026
Excellent peptide research vendor
Easy ordering experience. Products were high quality and received quickly. I will order from them again.
January 18, 2026
Easy checkout process
Easy checkout process, shipping was good, packaging was great. Happy with the experience overall
January 18, 2026
Product was delivered in a timely…
Product was delivered in a timely manner and well packaged.
January 18, 2026
Awesome customer service
Awesome customer service, quick delivery and great research materials!
December 19, 2025
Reply from Doublerlabs
Hello,
Thank you for your feedback! We are glad to hear you enjoyed the overall process and our products. We will see you soon!
Rob
Double R Labs
Product arrived timely
Product arrived timely, would have given 5 stars but paying was confusing and no communication on shipping to track. Had to reach out for info, however, they responded promptly.
December 23, 2025
Reply from Doublerlabs
Thank you for the honest feedback , we appreciate you taking the time to share it.
Tracking is normally sent automatically once an order ships, so I’m not entirely sure why it didn’t go out in this case. That said, as with any automated system, occasional errors can happen in an imperfect world, and we’re always working to reduce those.
You’re also correct that payment can feel confusing. Operating in this space makes traditional credit card processing challenging, but we’re actively working to have full CC processing in place by the end of January, which will greatly streamline checkout and communication.
We’re glad your order arrived promptly and that once you reached out, we were able to respond quickly. Feedback like this helps us continue improving, and we appreciate the opportunity to earn that fifth star next time.
Best Regards,
Double R Labs Team
Reply from Doublerlabs
Hi Meghan,
Thank you for your feedback! We are happy to hear we met your expectations. We look forward to having you back!
Rob
Double R Labs
Reply from Doublerlabs
Hi Nathaniel,
We appreciate your feedback! We are happy to hear you are satisfied with our shipping and customer support. We hope to have you back!
Rob
Double R Labs
Want a great customer service, great petides and fast shipping? Look no further!
Love this vendor. Always processing and shipping your order so quickly. Rob is always willing to answer questions you have. This is my go to Vendor!
December 24, 2025
Still have not received my order.
First order was great received product right away. Order a second time in December and still have not received my order. I’ve also tried to reach out multiple times without a response. If I can’t get the order id like to be refunded.
January 6, 2026
Unprompted review
Reply from Doublerlabs
Hi Frances,
Thanks for the review. I want to clarify a few important points so this can be resolved correctly.
We’ve reviewed our system and email logs, and at this time we only see one completed order and payment, which was fulfilled successfully. We do not see a second completed order or cleared payment on our end. There is a bac water order currently marked on hold awaiting payment, but no funds have cleared and nothing has been released or shipped for that order.
We’ve also checked our inbox and do not have any emails regarding a second paid order. That said, if you have a receipt, confirmation email, or screenshot showing payment for a second order, please send it to info@doublerlabs.is
and we’ll immediately process and ship it.
If no payment was completed, there is nothing to refund , but if you can provide proof of payment, we’ll take care of it right away. We’re happy to help get this resolved as quickly as possible.
— Double R Labs
Reply from Doublerlabs
Hi Laura,
We appreciate your positive feedback! We look forward to having you back.
Rob
Double R Labs
Reply from Doublerlabs
Hi Jason,
Thanks for your feedback! We are glad to hear you enjoyed our customer service. Thank you for choosing Double R Labs.
Rob
Double R Labs
Reply from Doublerlabs
Hello,
Thank you for your feedback, we hope to have you back!
Rob
Double R Labs
Still haven’t received my product
Still haven’t received my product. Super delayed shipping
December 21, 2025
Reply from Doublerlabs
Hi Victor,
I’m sorry for the frustration this delay caused—I understand how disappointing that can be.
Your order was processed and shipped the next business day, but we did make an internal error and selected ground shipping instead of UPS 2-Day Air, which extended transit time, especially with holiday carrier delays. That part is on us.
To be fair, I’ve already refunded the cost difference between 2-Day Air and ground shipping, as you shouldn’t pay for a service you didn’t receive.
This was a one-off shipping selection error and not reflective of our normal service, which you’ve experienced on prior orders. Your package is currently in transit, and I’ll make sure you’re taken care of if anything comes up.
— Robert
Double R Labs L.L.C.
Double R Labs great company
Double R Labs, their product their COAs, very transparent and customer service are incredible and they’re shipping is quick great company definitely would recommend
January 4, 2026
Reply from Doublerlabs
Hi Paul,
We appreciate the feedback! We value transparency and high-quality products at great prices, so we are happy to hear you are satisfied with our business. We hope to have you back!
Rob
Double R Labs
Best peptide seller on the market!
My order was fulfilled beautifully and had exerting packed up and ready! It was all clean and well put together! #8149 Cheapest reta with high quality!
December 11, 2025
Unprompted review
Reply from Doublerlabs
Hi Balneet,
Thank you for taking the time to share your thoughts! We are pleased to hear that you are satisfied with our products. We value product quality and customer satisfaction!
Rob
Double R Labs
Great products
Great products. Great place for 5-amino. Fast shipping.
December 16, 2025
Unprompted review
Reply from Doublerlabs
Hi Joshua,
We appreciate your feedback; it’s great to know we are meeting your expectations! We are dedicated to providing high-quality products and an exceptional experience.
Rob
Double R Labs
Can be trusted
Made the purchase during Black Friday sale the day before Thanksgiving. I made an error and reached out for support. The responder was quick and helpful, as he made the change for me and confirmed my payment (once he had his coffee lol)Great prices! I will be back!
November 25, 2025
Unprompted review
Reply from Doublerlabs
Hi Victoria,
Thank you for sharing your feedback! We are committed to providing excellent experience and reliable support. We are happy to hear you’re satisfied with our responsiveness and pricing. We hope to have you back!
Rob
Double R Labs
Repeat customer
Second time ordering with Double R Labs! Great sales and selection of items.
December 13, 2025
Unprompted review
Reply from Doublerlabs
Hi,
Thank you for your feedback! We are happy to hear you’re satisfied with our product selection and pricing. We hope to continue meeting your expectations!
Rob
Double R Labs
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