ZLZ Peptide

Peptide Vendor. Lab-tested. Independently scored.

0.0

0 reviews · Poor

86 HPLC samples across 5 products
Catalog avg purity 66.4%
Independent testing, no pay-to-rank

Boren Health independently tests products and verifies reviews. Public methodology, no pay-to-rank.

Lab testing results

Independent results across 5 products.

Total lab tests

66.4%

Avg purity

100.0%

Best score

25.0%

Worst score

Tested products

Product	Grade	Tests	Avg	Range	Latest	Price	$/mg
Retatrutide	COKAY	47	74.0%	44.0% – 100.0%	11/23/2025	—	—
Tirzepatide	COKAY	27	74.0%	45.0% – 100.0%	11/23/2025	—	—
Sermorelin	AGREAT	2	71.0%	66.0% – 75.0%	10/3/2025	—	—
GHK-Cu	COKAY	6	64.0%	45.0% – 80.0%	11/18/2025	—	—
Semaglutide	EBAD	4	49.0%	25.0% – 78.0%	10/14/2025	—	—

Individual lab tests

Retatrutide4.4

Date

11/23/2025

Purity

99.9%

Quantity

20mg → 33.200mg

Lab

Lab G

Tirzepatide4.8

Date

11/23/2025

Purity

99.9%

Quantity

20mg → 26.410mg

Lab

Lab G

Tirzepatide4.5

Date

11/23/2025

Purity

99.8%

Quantity

20mg → 28.800mg

Lab

Lab G

GHK-Cu4.5

Date

11/18/2025

Purity

99.93%

Quantity

50mg → 78.600mg

Lab

Lab E

Tirzepatide7.4

Date

11/18/2025

Purity

99.66%

Quantity

50mg → 49.700mg

Lab

Lab E

Tirzepatide7.3

Date

11/18/2025

Purity

99.62%

Quantity

50mg → 50.400mg

Lab

Lab E

GHK-Cu8.0

Date

11/17/2025

Purity

99.95%

Quantity

50mg → 48.800mg

Lab

Lab E

Product	Date	Score	Purity	Quantity	Lab
Retatrutide	11/23/2025	4.4	99.9%	20mg → 33.200mg	Lab G
Tirzepatide	11/23/2025	4.8	99.9%	20mg → 26.410mg	Lab G
Tirzepatide	11/23/2025	4.5	99.8%	20mg → 28.800mg	Lab G
GHK-Cu	11/18/2025	4.5	99.93%	50mg → 78.600mg	Lab E
Tirzepatide	11/18/2025	7.4	99.66%	50mg → 49.700mg	Lab E
Tirzepatide	11/18/2025	7.3	99.62%	50mg → 50.400mg	Lab E
GHK-Cu	11/17/2025	8.0	99.95%	50mg → 48.800mg	Lab E

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