Is Bench Grade Peptides or Stealth Research Labs better?

Bench Grade Peptides scores 84.2 of 100 against Stealth Research Labs at 80.1. Bench Grade Peptides publishes more certificates: 53 against 10. 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 Stealth Research Labs is cheaper?

Across the 10 compounds both price, Bench Grade Peptides is cheaper on 5 and Stealth Research Labs on 2. Price per milligram is compared at each vendor's own listed vial size.

Who tests Bench Grade Peptides and Stealth Research Labs peptides?

Bench Grade Peptides: AV Analytics. Stealth Research Labs: Bioviridian Inc.. 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 Stealth Research Labs publish?

Bench Grade Peptides has 53 lot-level certificates on file and Stealth Research Labs has 10. Both counts are of certificates this index located and read, not of certificates claimed.

Head to head

Bench Grade Peptides vs Stealth Research Labs

Bench Grade Peptides scores 84.2 of 100 against Stealth Research Labs at 80.1. Bench Grade Peptides publishes more certificates: 53 against 10.

Same rubric, same date · 63 certificates between them · 10 compounds in common

	Bench Grade Peptides 84.2/100 Rank 9 of 58 Visit	Stealth Research Labs 80.1/100 Rank 12 of 58 Visit
Score0–100 on the published rubric	84.2 Well documented	80.1 Well documented
Evidence coverageShare of scored fields sourced	91%	91%
Certificates on fileLot records this index read	53	10
Testing laboratory	AV Analytics	Bioviridian Inc.
ISO/IEC 17025	—	—
Label accuracyMean gap, labeled vs assayed	6.8%	2.8%
Basket price% of the peer median	100%	110%
Enforcement recordActions on record	None on record	None on record
Discount code	—	—

Price, compound by compound

10 priced on both

Price per milligram at each vendor’s own listed vial size. Bench Grade Peptides is cheaper on 5, Stealth Research Labs on 2. The median column is the peer median across every vendor this index prices.

Compound	Bench Grade Peptides	Stealth Research Labs	Median
BPC-157	$3.90	$5.00	$5.50
GHK-Cu	$0.38	$0.80	$0.60
Melanotan I	$4.60	$4.50	$4.10
Melanotan II	$4.50	$4.50	$4.00
MOTS-c	$4.70	$5.50	$5.50
NAD+	$0.12	$0.12	$0.13
Retatrutide	$3.90	$7.00	$7.40
Selank	$3.60	$4.00	$4.20
Semax	$5.40	$4.00	$4.00
Tirzepatide	$4.50	$4.50	$6.20

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 want the cheaper basket overall; you buy mostly the compounds it prices lower.

Pick Stealth Research Labs if

you prefer its catalogue or its terms; on the recorded evidence the two are close.

Questions

Is Bench Grade Peptides or Stealth Research Labs better?: Bench Grade Peptides scores 84.2 of 100 against Stealth Research Labs at 80.1. Bench Grade Peptides publishes more certificates: 53 against 10. 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 Stealth Research Labs is cheaper?: Across the 10 compounds both price, Bench Grade Peptides is cheaper on 5 and Stealth Research Labs on 2. Price per milligram is compared at each vendor's own listed vial size.
Who tests Bench Grade Peptides and Stealth Research Labs peptides?: Bench Grade Peptides: AV Analytics. Stealth Research Labs: Bioviridian Inc.. 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 Stealth Research Labs publish?: Bench Grade Peptides has 53 lot-level certificates on file and Stealth Research Labs has 10. Both counts are of certificates this index located and read, not of certificates claimed.

Both records were last re-verified on 2026-09-28 and 2026-10-03. 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.