467 third-party lab reports published 3 for the price of 2 on compound vials and capsules — put any 3 in your cart and the cheapest one is free, automatically. Solvents and lab supplies excluded. Ends Saturday, October 31. For research use only. 99.65% median purity across 265 lots Defense, VA, Federal and Public safety: your verified pricing stays on and stacks with 3 for the price of 2, up to the 43% order cap · get verified 250 / 250 lots pass sterility

Research feedback

What customers told us about our materials, our documents and our service. Since September 2026.

4.8
633 ratings
448 research feedback surveys and 185 ratings on a public review site. Latest survey today.
5 stars397
4 stars45
3 stars1
2 stars0
1 star1
Documentation matched what they saw4.9
Consistency across repeat orders4.8
Conformance in their assay4.8
Would recommend to a colleague9.6/10
What the scores mean ›
  • Documentation matched what they sawThe certificate’s purity and amounts matched what arrived in the box.
  • Consistency across repeat ordersThe same material behaved the same way from one batch to the next.
  • Conformance in their assayThe material did what the method and the certificate said it would, in the buyer’s own test.
  • Would recommend to a colleagueHow likely they are to recommend us to a colleague sourcing research materials, from 0 to 10.

Newest

448 surveys · 440 shown

Newest first. None is removed for its rating.

4.8
PGL-GIC1 · PGL-GI1 · GHK-Cu Copper Peptide
Documentation5
Consistency4
Conformance5
Verified purchaser·Oct 2026
4.0
NAD+
Documentation4
Consistency4
Conformance4
Verified purchaser·Oct 2026
BPC-157 · Reconstitution Solution, 0.9% Benzyl Alcohol – 10mL
Documentation–
Consistency–
Conformance–
Verified purchaser·Oct 2026
4.8
BPC-157, TB-500 (Blend) · PGL-GI1 · Reconstitution Solution, 0.9% Benzyl Alcohol – 30mL · 4 more
Documentation5
Consistency5
Conformance5
Verified purchaser·Oct 2026
5.0
BPC-157, TB-500 (Blend) · PGL-GIC1 · Reconstitution Solution, 0.9% Benzyl Alcohol – 30mL · 3 more
Documentation5
Consistency5
Conformance5
Verified purchaser·Oct 2026
5.0
Livagen
Documentation5
Consistency5
Conformance5
Verified purchaser·Oct 2026
5.0
AOD-9604
Documentation5
Consistency5
Conformance5
Verified purchaser·Oct 2026
5.0
KPV · L-Glutathione · GHK-Cu Copper Peptide · 2 more
Documentation5
Consistency5
Conformance5
Verified purchaser·Oct 2026
5.0
BPC-157, TB-500 (Blend) · Tesamorelin · Ipamorelin · 5 more
Documentation5
Consistency5
Conformance5
Verified purchaser·Oct 2026
4.6
NAD+ · MOTS-c · KLOW Blend
Documentation5
Consistency–
Conformance5
Verified purchaser·Oct 2026
5.0
PGL-GIC1 · NAD+
Documentation5
Consistency5
Conformance5
Verified purchaser·Oct 2026
4.8
BPC-157 · GHK-Cu Copper Peptide · Reconstitution Solution, 0.9% Benzyl Alcohol – 10mL
Documentation5
Consistency4
Conformance5
Verified purchaser·Oct 2026
4.8
GHK-Cu Copper Peptide · Tesamorelin · PGL-GIC1
Documentation5
Consistency5
Conformance4
Verified purchaser·Oct 2026
5.0
KPV · Reconstitution Solution, 0.9% Benzyl Alcohol – 30mL · GHK-Cu Copper Peptide · 2 more
Documentation5
Consistency5
Conformance5
Verified purchaser·Oct 2026
4.4
GLOW Blend · Semax + Selank (Blend) · Sermorelin
Documentation4
Consistency4
Conformance4
Verified purchaser·Oct 2026
5.0
PGL-GIC1 · Reconstitution Solution, 0.9% Benzyl Alcohol – 30mL · GLOW Blend
Documentation5
Consistency5
Conformance5
Verified purchaser·Oct 2026

By product

72 products

Every product a survey included. A product's own star appears at 10 surveys.

Questions first-time buyers ask

Is Peptidology legitimate? ›

Every new batch is tested at outside, accredited labs and its certificate is published the way the lab sent it. Every review on this page comes from a verified purchaser, and none is removed for its rating.

Who writes these reviews? ›

Customers who completed an order and answered our research feedback survey. Staff cannot take the survey.

Why are there no names? ›

Reviewers answer anonymously. We print the month and the products, never a name.

Bought from us?Take the research feedback survey › New here?Registered researchers only. Certificates and documentation are open to everyone.Create a free account ›

Important research notice. For research use only. Not intended for diagnostic or therapeutic use. We do not work with patients.

Reviewers received a $25 research credit for completing the survey, whatever they answered. Store credit has no cash value.

Every completed survey counts toward the numbers. Reviews appear after a short check. A reviewer's own words appear only when they allowed quoting and we approved the comment. None is removed for its rating.

Ratings on public review sites are counted in the total and are not reproduced here.