Heather D.
Great customer service
Great customer service, fast delivery. Have to take away a start for the new complicated payment system, don’t like having to give my personal information to purchase crypto.

Peptidic is a research-use-only peptide supplier committed to purity, precision, and purpose.We’re a team of passionate scientists and innovators who believe the bar for peptide quality should be higher. Our focus isn’t profit — it’s delivering reliable, lab-tested compounds that researchers can truly trust.
Peptidic. (peptidicresearch.com) has 118 customer reviews on Five Star Index, with an average rating of 4.6 out of 5.
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Research & Development · ST PETERSBURG, Florida
Excellent

Research & Development · Delray Beach, Florida
Excellent

Research & Development · Miami, Florida
Excellent

Research & Development · Orlando, Florida
Excellent
Showing 5 reviews with 4 stars · Clear filters
Heather D.
Great customer service, fast delivery. Have to take away a start for the new complicated payment system, don’t like having to give my personal information to purchase crypto.
Neal T.
Tripeptide 30 mg. Shipping packaging was flimsy and only secured with a small piece of tape. Contents were not damaged. Mixed per instructions, very strong compared to name brand, will be reevaluating dose accordingly.
Brian M.
Great price but directions or syringes were not included. I’m a 1st time customer but have used GLP1 in the past and had some supplies left. Other than that, great experience thus far and I’m planning to reorder in the future. Thank you
Stephanie T.
Peptides arrived within a week. I’m taking one star off because the Retatrutide I ordered is 20 mg and comes in a bottle that’s not big enough to add 4 ML of bac water to reconstitute, which is what was recommended by the health professional I found Retatrutide through, so it’s hard to know the exact dose you end up getting per injection. Otherwise seems to be a good service.
Response from Peptidic.Dec 17, 2025
Hi Stephanie, Thank you for taking the time to leave a detailed review — we’re glad to hear your order arrived quickly. I just wanted to clarify one important point regarding Retatrutide 20 mg reconstitution , as there seems to be a small misunderstanding that can easily cause confusion. For a 20 mg Retatrutide vial, you do not need to add 4 mL of bacteriostatic water. The recommended and standard protocol is 2.0 mL, which results in a 10 mg/mL concentration. This concentration is intentionally chosen because it makes dosing very straightforward: - 10 units = 1 mg - 20 units = 2 mg - 50 units = 5 mg Our vials are designed to safely accommodate up to ~3 mL, which is the industry standard for this peptide format. Adding 4 mL would lower the concentration to 5 mg/mL, making dosing math more complex and is not the recommended protocol for this vial size. Because the mention of needing 4 mL may unintentionally mislead other researchers and raise concerns about vial size, we kindly ask if you would consider updating or adjusting your review to reflect the correct protocol. Warm regards, Peptidic Support
JOSEPH S.
Item work well. Would be nice if they will offer to purchase the liquid to mix it and instructions when you purchase it.