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
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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
Synthesis Peptides are the type of company, that all companies should aspire to be like, the customer service is second to none, post sale I might add. There was a small problem with my order. I raise... See more
Company details
- #3 of 42 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
116 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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Always great quality and service
Always great quality and service. The best peptide company out there.
May 30, 2026
Dis shit fo reserch
Great communication and commitment to the sale all the way through to the end. Also great customer service. Plus the quality is awesome and the product is great.
May 29, 2026
Repeat customer
I have purchased from synthesis peptides multiple times now, and am happy with the products I have received from them! Always in a timely manner too. I
May 29, 2026
I was impressed by the quickness of the…
I was impressed by the quickness of the delivery and the quality of the product. fair price and excellent servicem
June 1, 2026
Unprompted review
Great peptides
Great peptides! I take a whole stack for workout and healing purposes. But, I’m currently healing from breast augmentation, and Doc mentioned how fast my scars are healing. Told her I was taking BPC-157 and TB-500. I usually take Glow, but I wanted individual vials for this surgery recovery. I’m 3 weeks post op, and she said my scars look like they’re 7 weeks post op.
May 27, 2026
Unmatched Quality and Support
Incredible selection and available inventory. High quality product with impressive COA’s. Customer support is unparalleled. This is my “go-to” company when I make a purchase.
May 27, 2026
Quality products, & Great customer service
Easy ordering process & always discounts. Ive been utilizing there products for over the past 5-6months with great effects.
May 26, 2026
Synthesis Peptides has been great to…
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 and ordering was effortless.
May 25, 2026
GREAT experience overall
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 care about their customers.
The quality has been great and everything matched what I expected. It’s nice finding a company that’s reliable and straightforward without overcomplicating things.
May 14, 2026
Unprompted review
Reply from Synthesispeptides
Thank you! Really glad you had such a great overall experience with us. Appreciate you mentioning the quick shipping, good packaging, easy ordering process, and responsive customer service.
It means a lot that you can tell we truly care about our customers. Thanks for the kind words and for choosing us.
Looking forward to your next order!
Reply from Synthesispeptides
Thank you for taking the time out to leave us a review and thank you so much for trusting in us!
Reply from Synthesispeptides
Thank you!! We always try to be the standard!
Reply from Synthesispeptides
Thank you! We're here to make every transaction seamless!
They were very helpful and kind
May 2, 2026
Reply from Synthesispeptides
Thank you for your kind words!
Reply from Synthesispeptides
Thank you!!
Reply from Synthesispeptides
Thank you! We can't wait!
Reply from Synthesispeptides
Thank you! We're here to keep the standard!
Product arrived on time and was exactly…
Product arrived on time and was exactly what I ordered. They kept me updated on the shipping process and on a tracking number.
May 5, 2026
Reply from Synthesispeptides
Thank you for taking out the time! We're looking forward to all our future business
Reply from Synthesispeptides
Thank you for taking the time!
Great guy answered all my questions and…
Great guy answered all my questions and spend a half hour on the phone with my mom answer her questions. Prices were great and speedy shipping. I would highly recommend!
April 1, 2026
Unprompted review
Reply from Synthesispeptides
Thank you, Casey! We do our best to be the standard!
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