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ZhuoYan lab

Is Zhuoyan Lab Legit

Is Zhuoyan Lab Legit? 44 independent lab tests across 4 products, averaging 97.7% purity.

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  • 44 HPLC samples across 4 products
  • Catalog avg purity 97.7%
  • www.zyzhuoyanlab.com
  • Independent testing, no pay-to-rank

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

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What the testing shows

Across 42 measured samples from ZhuoYan lab, 6 came in more than 5% under the quantity on the label (14%). Another 17 measured more than 5% over. Purity across 42 readings ran from 65.36% to 99.95%, median 99.7%. Samples span Jul 2025 to Aug 2026.

Under label
6/42

more than 5% short

Median purity
99.7%

65.36%–99.95% range

Latest sample
Aug 2026

first tested Jul 2025

Lab testing results

Independent results across 4 products.

44
Total lab tests
97.7%
Avg purity
99.9%
Best score
65.4%
Worst score

Tested products

Individual lab tests

Tirzepatide

Date

8/13/2026

Purity

—

Quantity

—

Lab

Krause Analytical

Vial

White label / Silver crimp / White cap

View certificate
GHK-Cu9.9

Date

7/23/2026

Purity

99.5%

Quantity

100 mg → 86.4 mg

Lab

Krause Analytical

Vial

No label / Silver crimp / Clear cap

View certificate
Retatrutide10.0

Date

6/5/2026

Purity

99.9%

Quantity

60 mg → 61.2 mg

Lab

Krause Analytical

Vial

No label / Copper crimp / Clear cap

View certificate
Tirzepatide10.0

Date

4/23/2026

Purity

99.9%

Quantity

30 mg → 30.6 mg

Lab

Krause Analytical

Vial

Silver Label / Copper Crimp / Clear Cap

View certificate
Tirzepatide10.0

Date

3/6/2026

Purity

99.9%

Quantity

20 mg → 20 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Gray Cap

View certificate
GHK-Cu10.0

Date

3/6/2026

Purity

99.9%

Quantity

100 mg → 92.6 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Clear Cap

View certificate
GHK-Cu10.0

Date

2/20/2026

Purity

99.7%

Quantity

50 mg → 45.3 mg

Lab

BTLabs

Vial

No Label / Copper Crimp / Clear Cap

View certificate
Tesamorelin10.0

Date

2/20/2026

Purity

99.7%

Quantity

10 mg → 14.9 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / White Cap

View certificate
Retatrutide10.0

Date

2/11/2026

Purity

99.9%

Quantity

10 mg → 10.6 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Clear Cap

View certificate
Tirzepatide10.0

Date

1/29/2026

Purity

99.9%

Quantity

50 mg → 56.2 mg

Lab

Krause Analytical

Vial

Yellow Label / Silver Crimp / Red Cap

View certificate
Tirzepatide10.0

Date

1/29/2026

Purity

99.9%

Quantity

10 mg → 9.78 mg

Lab

Krause Analytical

Vial

Yellow Label / Silver Crimp / Yellow Cap

View certificate
Tesamorelin

Date

1/29/2026

Purity

—

Quantity

—

Lab

Krause Analytical

Vial

Green Clear Label / Silver Crimp / White Cap

View certificate
Tesamorelin9.7

Date

1/29/2026

Purity

97.46%

Quantity

10 mg → 8.49 mg

Lab

Krause Analytical

Vial

Green Clear Label / Silver Crimp / Violet Cap

View certificate
Tirzepatide10.0

Date

1/19/2026

Purity

99.95%

Quantity

15 mg → 15.6 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Blue Cap

View certificate
Tirzepatide10.0

Date

1/15/2026

Purity

99.7%

Quantity

100 mg → 117.8 mg

Lab

BTLabs

Vial

Clear Label / Silver Crimp / Blue Cap

View certificate
Tirzepatide10.0

Date

1/15/2026

Purity

99.8%

Quantity

10 mg → 11.5 mg

Lab

BTLabs

Vial

Clear Label / Silver Crimp / Yellow Cap

View certificate
Retatrutide10.0

Date

1/15/2026

Purity

99.7%

Quantity

20 mg → 19.7 mg

Lab

BTLabs

Vial

Yellow Clear Label / Copper Crimp / Clear Cap

View certificate
Tirzepatide10.0

Date

1/1/2026

Purity

99.8%

Quantity

50 mg → 53.1 mg

Lab

BTLabs

Vial

Yellow Label / Silver Crimp / Clear Yellow Cap

View certificate
Tirzepatide10.0

Date

1/1/2026

Purity

99.9%

Quantity

50 mg → 48 mg

Lab

BTLabs

Vial

Yellow Label / Silver Crimp / Red Cap

View certificate
Retatrutide10.0

Date

12/17/2025

Purity

99.89%

Quantity

40 mg → 40.9 mg

Lab

Krause Analytical

Vial

Red Label / Silver Crimp / Red Cap

View certificate
Tesamorelin9.8

Date

12/17/2025

Purity

98.01%

Quantity

10 mg → 10.3 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / White Cap

View certificate
GHK-Cu10.0

Date

12/17/2025

Purity

99.95%

Quantity

50 mg → 56.1 mg

Lab

Krause Analytical

Vial

Clear Label / Copper Crimp / Clear Cap

View certificate
Retatrutide9.9

Date

12/13/2025

Purity

99.5%

Quantity

20 mg → 23.5 mg

Lab

BTLabs

Vial

White Label / Copper Crimp / Clear Cap

View certificate
Tirzepatide10.0

Date

12/13/2025

Purity

99.7%

Quantity

30 mg → 35.2 mg

Lab

BTLabs

Vial

White Label / Silver Crimp / Orange Cap

View certificate
Tesamorelin6.5

Date

11/25/2025

Purity

65.36%

Quantity

10 mg → 7.77 mg

Lab

Krause Analytical

Vial

Clear Label / Silver Crimp / White Cap

View certificate
Retatrutide10.0

Date

11/25/2025

Purity

99.95%

Quantity

20 mg → 20.3 mg

Lab

Krause Analytical

Vial

White Label / Copper Crimp / Clear Cap

View certificate
Tirzepatide10.0

Date

11/17/2025

Purity

99.95%

Quantity

15 mg → 15.3 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Clear Pink Cap

View certificate
Retatrutide10.0

Date

11/14/2025

Purity

99.7%

Quantity

10 mg → 10.9 mg

Lab

BTLabs

Vial

Clear Label / Silver Crimp / White Cap

View certificate
Retatrutide10.0

Date

11/14/2025

Purity

99.6%

Quantity

60 mg → 69.8 mg

Lab

BTLabs

Vial

Clear Label / Silver Crimp / Clear Blue Cap

View certificate
Tirzepatide10.0

Date

11/4/2025

Purity

99.95%

Quantity

10 mg → 10.6 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Yellow Cap

View certificate
Retatrutide10.0

Date

10/21/2025

Purity

99.67%

Quantity

10 mg → 9.84 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Green Cap

View certificate
Retatrutide10.0

Date

10/9/2025

Purity

99.57%

Quantity

30 mg → 29 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Black Cap

View certificate
Tirzepatide9.9

Date

10/7/2025

Purity

98.8%

Quantity

10 mg → 14.5 mg

Lab

BTLabs

Vial

White Label / Silver Crimp / Yellow Cap

View certificate
Tirzepatide9.9

Date

10/6/2025

Purity

99.3%

Quantity

20 mg → 24.6 mg

Lab

BTLabs

Vial

White Label / Silver Crimp / Gray Cap

View certificate
Tirzepatide10.0

Date

9/30/2025

Purity

99.92%

Quantity

20 mg → 19.4 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Gray Cap

View certificate
Tirzepatide10.0

Date

9/18/2025

Purity

99.95%

Quantity

30 mg → 33.4 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Clear Blue Cap

View certificate
Retatrutide10.0

Date

9/18/2025

Purity

99.93%

Quantity

10 mg → 9.06 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Green Cap

View certificate
Retatrutide10.0

Date

8/6/2025

Purity

99.56%

Quantity

5 mg → 5.62 mg

Lab

Freedom Diagnostics

Vial

No Label / Silver Crimp / Red Cap

View certificate
Tirzepatide10.0

Date

8/5/2025

Purity

99.712%

Quantity

20 mg → 20.56 mg

Lab

Janoshik

Vial

Clear Label / Silver Crimp / Grey Cap

View certificate
Tesamorelin9.8

Date

8/5/2025

Purity

98.044%

Quantity

10 mg → 10.24 mg

Lab

Chromate

Vial

No Label / Silver Crimp / Black Cap

View certificate
Retatrutide9.9

Date

8/4/2025

Purity

99.369%

Quantity

15 mg → 16.97 mg

Lab

Janoshik

Vial

No Label / Silver Crimp / Clear Cap

View certificate
Tirzepatide9.9

Date

7/28/2025

Purity

99.36%

Quantity

20 mg → 19.4 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Grey Cap

View certificate
Tirzepatide9.9

Date

7/3/2025

Purity

99.39%

Quantity

10 mg → 9.68 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / White Cap

View certificate
Tirzepatide9.9

Date

7/2/2025

Purity

99.14%

Quantity

5 mg → 4.8 mg

Lab

Krause Analytical

View certificate

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