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Mai Peptide

Mai Peptide reviews

91 independent lab tests across 7 products · 98.7% average purity

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  • 91 HPLC samples across 7 products
  • Catalog avg purity 98.7%
  • mai-peptides.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 86 measured samples from Mai Peptide, 23 came in more than 5% under the quantity on the label (27%). Another 24 measured more than 5% over. Purity across 86 readings ran from 67.9% to 99.95%, median 99.8%. Samples span Aug 2025 to Aug 2026.

Under label
23/86

more than 5% short

Median purity
99.8%

67.9%–99.95% range

Latest sample
Aug 2026

first tested Aug 2025

Ships from
China

per vendor listing

Lab testing results

Independent results across 7 products.

91
Total lab tests
98.7%
Avg purity
99.9%
Best score
67.9%
Worst score

Tested products

Individual lab tests

Tirzepatide

Date

8/21/2026

Purity

Quantity

Lab

BTLabs

Vial

No label, Gold crimp, Violet cap

View certificate
BPC-157

Date

7/30/2026

Purity

Quantity

Lab

BTLabs

Vial

No Label / Copper Crimp / Clear Cap

View certificate
GHK-Cu6.8

Date

7/30/2026

Purity

67.9%

Quantity

50 mg → 39.6 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / Pink Cap

View certificate
Tirzepatide

Date

7/30/2026

Purity

Quantity

Lab

BTLabs

Vial

No Label / Silver Crimp / Clear Blue Cap

View certificate
Cagrilintide10.0

Date

7/13/2026

Purity

99.7%

Quantity

5 mg → 5.65 mg

Lab

Krause Analytical

Vial

Silver label / Silver crimp / Clear cap

View certificate
Tesamorelin9.8

Date

7/13/2026

Purity

98.1%

Quantity

5 mg → 5.63 mg

Lab

Krause Analytical

Vial

Silver label / Silver crimp / White cap

View certificate
BPC-15710.0

Date

7/13/2026

Purity

99.9%

Quantity

5 mg → 4.74 mg

Lab

Krause Analytical

Vial

No label / Silver crimp / Pink cap

View certificate
Retatrutide10.0

Date

7/10/2026

Purity

99.6%

Quantity

10 mg → 10.4 mg

Lab

BTLabs

Vial

No label / Silver crimp / Clear Blue cap

View certificate
BPC-1579.7

Date

7/1/2026

Purity

97.4%

Quantity

5 mg → 4.89 mg

Lab

Krause Analytical

Vial

Silver label / Silver crimp / White cap

View certificate
Tirzepatide10.0

Date

7/1/2026

Purity

99.9%

Quantity

30 mg → 32.1 mg

Lab

Krause Analytical

Vial

Silver label / Silver crimp / Black cap

View certificate
Retatrutide10.0

Date

7/1/2026

Purity

99.9%

Quantity

30 mg → 27.4 mg

Lab

Krause Analytical

Vial

Silver label / Silver crimp / White cap

View certificate
GHK-Cu10.0

Date

7/1/2026

Purity

99.9%

Quantity

50 mg → 44.2 mg

Lab

Krause Analytical

Vial

Silver label / Silver crimp / Violet cap

View certificate
GHK-Cu10.0

Date

6/26/2026

Purity

99.7%

Quantity

100 mg → 74.2 mg

Lab

BTLabs

Vial

Silver label / Gold crimp / Clear cap

View certificate
Tirzepatide10.0

Date

6/8/2026

Purity

99.8%

Quantity

30 mg → 39.3 mg

Lab

BTLabs

Vial

No label / Silver crimp / Black cap

View certificate
Retatrutide10.0

Date

6/5/2026

Purity

99.9%

Quantity

30 mg → 29.9 mg

Lab

Krause Analytical

Vial

No label / Silver crimp / Green cap

View certificate
Retatrutide10.0

Date

5/13/2026

Purity

99.9%

Quantity

50 mg → 47.3 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Black Cap

View certificate
Retatrutide10.0

Date

5/13/2026

Purity

99.9%

Quantity

30 mg → 30 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Pink Cap

View certificate
BPC-157

Date

4/28/2026

Purity

Quantity

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Blue Cap

View certificate
Ipamorelin10.0

Date

4/28/2026

Purity

99.9%

Quantity

5 mg → 5.34 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Black Cap

View certificate
Retatrutide10.0

Date

3/13/2026

Purity

99.8%

Quantity

20 mg → 21.6 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / White Cap

View certificate
Retatrutide10.0

Date

3/13/2026

Purity

99.66%

Quantity

10 mg → 10.1 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / Yellow Cap

View certificate
Retatrutide10.0

Date

3/12/2026

Purity

99.9%

Quantity

50 mg → 43.8 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Clear Yellow Cap

View certificate
Tesamorelin10.0

Date

3/12/2026

Purity

99.9%

Quantity

10 mg → 10.4 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Black Cap

View certificate
Tirzepatide10.0

Date

3/6/2026

Purity

99.9%

Quantity

50 mg → 52.4 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Clear Yellow Cap

View certificate
Tirzepatide10.0

Date

3/6/2026

Purity

99.9%

Quantity

50 mg → 42.4 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / White Cap

View certificate
Retatrutide10.0

Date

3/6/2026

Purity

99.9%

Quantity

40 mg → 37.9 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Green Cap

View certificate
Tirzepatide10.0

Date

3/6/2026

Purity

99.9%

Quantity

60 mg → 51.7 mg

Lab

Krause Analytical

Vial

No Label / Copper Crimp / Clear Cap

View certificate
Tirzepatide10.0

Date

3/6/2026

Purity

99.9%

Quantity

60 mg → 70.2 mg

Lab

Krause Analytical

Vial

No Label / Copper Crimp / Clear Cap

View certificate
Tirzepatide9.9

Date

3/4/2026

Purity

99.06%

Quantity

30 mg → 25.3 mg

Lab

Krause Analytical

Vial

Teal Label / Silver Crimp / Green Cap

View certificate
Cagrilintide9.9

Date

3/1/2026

Purity

98.8%

Quantity

5 mg → 4.9 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / Clear Cap

View certificate
BPC-15710.0

Date

2/26/2026

Purity

99.73%

Quantity

10 mg → 9.73 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Blue Cap

View certificate
Retatrutide10.0

Date

2/22/2026

Purity

99.9%

Quantity

40 mg → 40.1 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Green Cap

View certificate
GHK-Cu10.0

Date

2/22/2026

Purity

99.9%

Quantity

100 mg → 86 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Blue Cap

View certificate
Tesamorelin10.0

Date

2/20/2026

Purity

99.78%

Quantity

10 mg → 11.3 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Black Cap

View certificate
Ipamorelin10.0

Date

2/20/2026

Purity

99.81%

Quantity

10 mg → 10.3 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Violet Cap

View certificate
Cagrilintide9.9

Date

2/20/2026

Purity

98.88%

Quantity

5 mg → 4.66 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Blue Cap

View certificate
Ipamorelin10.0

Date

2/20/2026

Purity

99.9%

Quantity

5 mg → 5.26 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / White Cap

View certificate
Tirzepatide9.9

Date

2/18/2026

Purity

98.92%

Quantity

30 mg → 31.5 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Black Cap

View certificate
Retatrutide10.0

Date

2/18/2026

Purity

99.75%

Quantity

20 mg → 21.8 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Clear Blue Cap

View certificate
Retatrutide10.0

Date

2/16/2026

Purity

99.9%

Quantity

10 mg → 10.1 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Violet Cap

View certificate
Retatrutide10.0

Date

2/15/2026

Purity

99.8%

Quantity

60 mg → 65.3 mg

Lab

BTLabs

Vial

No Label / Copper Crimp / Clear Cap

View certificate
Retatrutide10.0

Date

2/15/2026

Purity

99.8%

Quantity

40 mg → 40.1 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / Green Cap

View certificate
Retatrutide10.0

Date

2/11/2026

Purity

99.9%

Quantity

60 mg → 60.8 mg

Lab

Krause Analytical

Vial

No Label / Gold Crimp / Clear Cap

View certificate
GHK-Cu10.0

Date

2/11/2026

Purity

99.9%

Quantity

100 mg → 84.6 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Blue Cap

View certificate
Retatrutide9.9

Date

2/4/2026

Purity

99.36%

Quantity

30 mg → 31.8 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Pink Cap

View certificate
Tirzepatide10.0

Date

2/4/2026

Purity

99.7%

Quantity

10 mg → 10.6 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / Clear Green Cap

View certificate
Retatrutide9.9

Date

2/4/2026

Purity

99.4%

Quantity

10 mg → 10.2 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / Clear Blue Cap

View certificate
Tirzepatide10.0

Date

2/4/2026

Purity

99.7%

Quantity

10 mg → 10.8 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / Clear Green Cap

View certificate
Tirzepatide9.9

Date

2/2/2026

Purity

99.1%

Quantity

30 mg → 32.4 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Green Cap

View certificate
Tirzepatide9.9

Date

2/2/2026

Purity

99.25%

Quantity

40 mg → 41.8 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Clear Blue Cap

View certificate
Tirzepatide9.9

Date

2/2/2026

Purity

99.12%

Quantity

40 mg → 40.9 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Green Cap

View certificate
Tirzepatide9.6

Date

2/2/2026

Purity

96.4%

Quantity

50 mg → 40.9 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Orange Cap

View certificate
Tirzepatide9.9

Date

2/2/2026

Purity

99.46%

Quantity

60 mg → 65.3 mg

Lab

Krause Analytical

Vial

Silver Label / Copper Crimp / Clear Cap

View certificate
GHK-Cu10.0

Date

2/2/2026

Purity

99.9%

Quantity

100 mg → 73.8 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Blue Cap

View certificate
GHK-Cu10.0

Date

2/2/2026

Purity

99.9%

Quantity

50 mg → 46.7 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / White Cap

View certificate
Tesamorelin10.0

Date

1/29/2026

Purity

99.9%

Quantity

10 mg → 9.94 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Black Cap

View certificate
Retatrutide10.0

Date

1/29/2026

Purity

99.75%

Quantity

60 mg → 62.6 mg

Lab

Krause Analytical

Vial

No Label / Gold Crimp / Clear Cap

View certificate
Retatrutide9.9

Date

1/29/2026

Purity

99.43%

Quantity

10 mg → 9.53 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Clear Blue Cap

View certificate
Tirzepatide10.0

Date

1/29/2026

Purity

99.9%

Quantity

50 mg → 49.7 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Red Cap

View certificate
Retatrutide10.0

Date

1/26/2026

Purity

99.8%

Quantity

10 mg → 10.1 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Clear Blue Cap

View certificate
Retatrutide10.0

Date

1/26/2026

Purity

99.9%

Quantity

40 mg → 39.4 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Green Cap

View certificate
Retatrutide10.0

Date

1/26/2026

Purity

99.8%

Quantity

20 mg → 20.8 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / Purple Cap

View certificate
Retatrutide10.0

Date

1/22/2026

Purity

99.8%

Quantity

10 mg → 10 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / Clear Blue Cap

View certificate
Retatrutide10.0

Date

1/22/2026

Purity

99.8%

Quantity

50 mg → 57.8 mg

Lab

BTLabs

Vial

White Label / Silver Crimp / Yellow Cap

View certificate
Tirzepatide10.0

Date

1/19/2026

Purity

99.95%

Quantity

60 mg → 57 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Pink Cap

View certificate
Tirzepatide10.0

Date

1/15/2026

Purity

99.54%

Quantity

30 mg → 33.2 mg

Lab

Krause Analytical

Vial

Red Label / Silver Crimp / Green Cap

View certificate
Tirzepatide9.9

Date

1/9/2026

Purity

99.31%

Quantity

30 mg → 28 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Black Cap

View certificate
Retatrutide10.0

Date

1/7/2026

Purity

99.95%

Quantity

10 mg → 10.1 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Clear Blue Cap

View certificate
Retatrutide10.0

Date

1/7/2026

Purity

99.95%

Quantity

20 mg → 18.1 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Violet Cap

View certificate
GHK-Cu10.0

Date

1/6/2026

Purity

99.95%

Quantity

50 mg → 50.3 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / White Cap

View certificate
Ipamorelin8.2

Date

1/6/2026

Purity

81.6%

Quantity

5 mg → 4.76 mg

Lab

Krause Analytical

Vial

Silver Label / Silver Crimp / Red Cap

View certificate
Retatrutide10.0

Date

1/1/2026

Purity

99.8%

Quantity

20 mg → 19.7 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / White Cap

View certificate
Tirzepatide10.0

Date

1/1/2026

Purity

99.7%

Quantity

10 mg → 9.2 mg

Lab

BTLabs

View certificate
GHK-Cu10.0

Date

12/29/2025

Purity

99.95%

Quantity

100 mg → 57.7 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / White Cap

View certificate
Retatrutide10.0

Date

12/29/2025

Purity

99.95%

Quantity

10 mg → 9.56 mg

Lab

Krause Analytical

Vial

No Label / Copper Crimp / Clear Cap

View certificate
Ipamorelin10.0

Date

12/29/2025

Purity

99.95%

Quantity

10 mg → 9.87 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Blue Cap

View certificate
Retatrutide8.2

Date

12/29/2025

Purity

81.94%

Quantity

10 mg → 8.29 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Green Cap

View certificate
GHK-Cu10.0

Date

12/29/2025

Purity

99.95%

Quantity

100 mg → 86.5 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Blue Cap

View certificate
Ipamorelin10.0

Date

12/17/2025

Purity

99.85%

Quantity

10 mg → 10 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Blue Cap

View certificate
GHK-Cu10.0

Date

12/17/2025

Purity

99.95%

Quantity

50 mg → 49 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Clear Cap

View certificate
Tirzepatide10.0

Date

12/17/2025

Purity

99.68%

Quantity

30 mg → 28.9 mg

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Green Cap

View certificate
Retatrutide9.9

Date

12/13/2025

Purity

99.2%

Quantity

15 mg → 15.2 mg

Lab

BTLabs

Vial

White Label / Silver Crimp / Clear Cap

View certificate
Retatrutide10.0

Date

12/12/2025

Purity

99.95%

Quantity

10 mg → 10.6 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Clear Blue Cap

View certificate
Cagrilintide10.0

Date

12/10/2025

Purity

99.7%

Quantity

10 mg → 11 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / Red Cap

View certificate
Tesamorelin10.0

Date

12/6/2025

Purity

99.95%

Quantity

10 mg → 10.3 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Black Cap

View certificate
Tirzepatide

Date

11/25/2025

Purity

Quantity

Lab

Krause Analytical

Vial

White Label / Silver Crimp / Violet Cap

View certificate
Retatrutide10.0

Date

11/23/2025

Purity

99.8%

Quantity

30 mg → 31.8 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / Pink Cap

View certificate
Cagrilintide10.0

Date

11/22/2025

Purity

99.7%

Quantity

10 mg → 12.1 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / Red Cap

View certificate
Retatrutide10.0

Date

11/14/2025

Purity

99.8%

Quantity

15 mg → 16.4 mg

Lab

BTLabs

Vial

No Label / Copper Crimp / Clear Cap

View certificate
Retatrutide9.9

Date

11/4/2025

Purity

99.5%

Quantity

10 mg → 11.1 mg

Lab

BTLabs

Vial

No Label / Silver Crimp / Clear Blue Cap

View certificate
Ipamorelin10.0

Date

8/21/2025

Purity

99.95%

Quantity

10 mg → 10.5 mg

Lab

Krause Analytical

Vial

No Label / Silver Crimp / Clear Red Cap

View certificate

About Mai Peptide

https://www.maipeptide.com/

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