GREAT experience overall. Shipping was quick, everything arrived on time and packaged well. The ordering process was easy, and customer service was responsive. The ppl running this business truly c... See more
Company replied
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Review summary
Created with AI, based on recent reviews
What people talk about most
Reviews shaping this summary
After having tried a few different companies, Synthesis is truly in a league of its own. I was impressed by the responsiveness and product quality, but truly blown away by the shipping times. When I n... See more
Company replied
Synthesis Peptides has been great to deal with. Great prices and when I had a concern the owner called me to ensure I was educated and satisfied with the product. Great to deal with. Delivery is fast... See more
I am editing this review due to the amazing customer service I received directly from the owner. There was a system error and I was able to purchase a product they no longer carry on their web... See more
Company details
- #5 of 44 best companies in Biochemical Supplier
Written by the company
Building Blocks for Breakthroughs.
Contact info
United States
- support@synthesispeptides.io
- synthesispeptides.io
4.9
Excellent
121 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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Amazing company
Easy ordering! Unbeatable deals! Picked up what I needed as a BOGO offer which is unheard of! There was a delay in shipping so they shipped me a complimentary stack at no charge as a token of appreciation for me as their customer. Customer service was timely in their response time and extremely helpful!
July 11, 2026
Great product and customer service
Great product and customer service. Prompt communication and delivery
July 10, 2026
Customer service is top notch
Customer service is top notch, shipping is fast and product is as described!
July 16, 2026
On time and packaged well!
July 15, 2026
Always a great transaction
Always a great transaction. Thank you. Will always be a customer.
July 15, 2026
Great product and customer support!
July 15, 2026
Quick shipping & great pricing
Quick, fast shipping, awesome prices, trusted source for research needs.
July 15, 2026
There was a little hiccup in the order…
There was a little hiccup in the order but was taken care of within three business days absolutely love your professionalism!
July 5, 2026
Christian was responsive and…
Christian was responsive and knowledgeable. Order came quick too.
July 13, 2026
A reliable company with great products…
A reliable company with great products and phenomenal customer service. Highly recommend giving them a try.
July 13, 2026
Shipping is quick and everything is good
July 11, 2026
I would never buy peptides somewhere…
I would never buy peptides somewhere else. This is the best place.
July 10, 2026
Product delivered very fast
July 8, 2026
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