Is Bench Grade Peptides or Transition Biotech better?

Bench Grade Peptides scores 86.8 of 100 against Transition Biotech at 82.6. Bench Grade Peptides publishes more certificates: 53 against 7. Both figures come from the same published rubric over sourced data points, and each links to the document behind it.

Which of Bench Grade Peptides and Transition Biotech is cheaper?

Across the 9 compounds both price, Bench Grade Peptides is cheaper on 6 and Transition Biotech on 2. Price per milligram is compared at each vendor's own listed vial size.

Who tests Bench Grade Peptides and Transition Biotech peptides?

Bench Grade Peptides: AV Analytics. Transition Biotech: Kovera Labs. A vendor-published certificate is recorded as a claim; only an independently commissioned assay counts as corroboration.

How many certificates do Bench Grade Peptides and Transition Biotech publish?

Bench Grade Peptides has 53 lot-level certificates on file and Transition Biotech has 7. Both counts are of certificates this index located and read, not of certificates claimed.

Head to head

Bench Grade Peptides vs Transition Biotech

Bench Grade Peptides scores 86.8 of 100 against Transition Biotech at 82.6. Bench Grade Peptides publishes more certificates: 53 against 7.

Same rubric, same date · 60 certificates between them · 9 compounds in common

	Bench Grade Peptides 86.8/100 Rank 8 of 56 Visit	Transition Biotech 82.6/100 Rank 12 of 56 Visit
Score0–100 on the published rubric	86.8 Extensively documented	82.6 Well documented
Evidence coverageShare of scored fields sourced	91%	96%
Certificates on fileLot records this index read	53	7
Testing laboratory	AV Analytics	Kovera Labs
ISO/IEC 17025	—	Not accredited
Label accuracyMean gap, labeled vs assayed	6.8%	6.3%
Basket price% of the peer median	100%	93%
Enforcement recordActions on record	None on record	None on record
Discount code	—	—

Price, compound by compound

9 priced on both

Price per milligram at each vendor’s own listed vial size. Bench Grade Peptides is cheaper on 6, Transition Biotech on 2. The median column is the peer median across every vendor this index prices.

Compound	Bench Grade Peptides	Transition Biotech	Median
BPC-157	$3.90	$5.00	$5.50
CJC-1295	$9.00	$5.50	$8.98
GHK-Cu	$0.38	$0.48	$0.59
Ipamorelin	$3.90	$6.00	$6.20
Kisspeptin	$9.70	$6.90	$5.12
NAD+	$0.12	$0.14	$0.14
Retatrutide	$3.90	$11	$8.00
TB-500	$4.10	$6.20	$6.20
Tirzepatide	$4.50	$4.50	$6.75

Which to pick

Pick Bench Grade Peptides if

you want the stronger documentation record of the two; you want the deeper certificate history (53 lots); you buy mostly the compounds it prices lower.

Pick Transition Biotech if

you want the cheaper basket overall.

Questions

Is Bench Grade Peptides or Transition Biotech better?: Bench Grade Peptides scores 86.8 of 100 against Transition Biotech at 82.6. Bench Grade Peptides publishes more certificates: 53 against 7. Both figures come from the same published rubric over sourced data points, and each links to the document behind it.
Which of Bench Grade Peptides and Transition Biotech is cheaper?: Across the 9 compounds both price, Bench Grade Peptides is cheaper on 6 and Transition Biotech on 2. Price per milligram is compared at each vendor's own listed vial size.
Who tests Bench Grade Peptides and Transition Biotech peptides?: Bench Grade Peptides: AV Analytics. Transition Biotech: Kovera Labs. A vendor-published certificate is recorded as a claim; only an independently commissioned assay counts as corroboration.
How many certificates do Bench Grade Peptides and Transition Biotech publish?: Bench Grade Peptides has 53 lot-level certificates on file and Transition Biotech has 7. Both counts are of certificates this index located and read, not of certificates claimed.

Both records were last re-verified on 2026-09-15 and 2026-09-23. Every figure is computed from the same rubric over sourced data points; see the methodology or the full best peptide vendors ranking. Partner links are marked and cannot affect a score.