Lab Testing & Purity

Q: Who tests PURETREX supplements?

An independent third-party laboratory in the UK with no connection to PURETREX. Each certificate carries the laboratory's own certificate code, sample number and reporting date.

Q: What do the certificates test for?

Four heavy metals: lead, cadmium, arsenic and mercury, measured by ICP-MS. The certificates are heavy-metal screens only. They do not measure potency or confirm ingredient identity.

Q: Are the results within legal limits?

Yes. Every published result is below the GB maximum level for food supplements set in Regulation (EC) No 1881/2006: lead 3.0 mg/kg, cadmium 1.0 mg/kg and mercury 0.10 mg/kg. GB law sets no specific arsenic limit for food supplements, so arsenic is published for information.

Q: Does each certificate cover every batch?

No. Each certificate applies to the sample it names, identified by the lab sample number and sample code. We publish the most recent certificate for each product and add new certificates here when they are issued.

Q: Can I see the original certificate?

Yes. Every result on this page links to the full certificate image exactly as the laboratory issued it, so you can check the certificate code, sample number and dates yourself.

Q: Why is my product not listed?

Only products with a current third-party heavy-metal certificate are listed. If you would like to know the testing status of another PURETREX product, contact our team at support@puretrex.co.uk.

PURETREX sends finished products to an independent third-party laboratory in the UK to screen for lead, cadmium, arsenic and mercury by ICP-MS. This page publishes every current certificate as text: the certificate code, lab sample number, dates and each result in mg/kg, next to the GB legal maximum.

How PURETREX products are tested

Laboratory: an independent third-party laboratory in the UK. The laboratory has no connection to PURETREX.
What is measured: the four heavy metals lead (Pb), cadmium (Cd), arsenic (As) and mercury (Hg).
Method: ICP-MS (inductively coupled plasma mass spectrometry), the standard laboratory method for trace metals.
What each certificate shows: the certificate code, the lab sample number, the dates the sample was received and reported, and the result for each metal in mg/kg.

How the results compare with the legal limits

Great Britain sets maximum levels for contaminants in food supplements in Regulation (EC) No 1881/2006 as it applies in GB: lead 3.0 mg/kg, cadmium 1.0 mg/kg and mercury 0.10 mg/kg. There is no specific GB maximum for arsenic in food supplements, so arsenic results are published for information. Every result on this page is below the GB maximum for that metal. A result shown as "<0.005" means the metal was below the laboratory's reporting limit.

Read the GB maximum levels on legislation.gov.uk

What this testing does not cover

These certificates are heavy-metal screens. They do not measure potency (how much of each ingredient is present) or confirm ingredient identity, and each certificate applies to the sample it names. Products not listed below do not yet have a published heavy-metal certificate.

All published results

Heavy-metal results for every PURETREX product with a published third-party laboratory certificate, in mg/kg
Product	Certificate	Reported	Lead	Cadmium	Arsenic	Mercury
Urolithin A 1000mg Liposomal Complex Softgels	AR-26-CC-011294-01	10 Aug 2026	0.045	<0.001	0.017	<0.005
Krill Oil 3000mg Softgels	AR-26-CC-007987-01	15 Jun 2026	<0.005	<0.001	0.039	<0.005
Milk Thistle Complex Capsules	AR-26-CC-007986-01	15 Jun 2026	0.012	<0.001	0.011	0.015
Liposomal Nattokinase 4000FU + Bromelain Capsules	AR-26-CC-004170-01	14 Apr 2026	0.170	0.046	0.141	<0.005
Creatine Gummies 5g + BCAA & Electrolytes	AR-25-CC-013789-01	22 Dec 2025	0.026	<0.001	<0.002	<0.005
Wormwood, Black Walnut & Oregano Capsules (Liposomal Herbal Complex)	AR-25-CC-013439-01	12 Dec 2025	0.042	0.003	0.062	0.015
Ultra Turkesterone Complex Capsules	AR-25-CC-011182-01	22 Oct 2025	0.033	0.004	0.029	<0.005
Shilajit Capsules with Sea Moss, Lion's Mane, Ashwagandha & Cordyceps	AR-25-CC-010592-01	9 Oct 2025	0.039	0.029	0.179	<0.005
NMNH Ultra Complex Capsules	AR-25-CC-010228-01	29 Sep 2025	0.051	0.009	0.019	0.006
Pumpkin Seed Oil 3000mg with Saw Palmetto Softgels	AR-25-CC-010151-01	26 Sep 2025	<0.005	<0.001	<0.002	<0.005
Vitamin D3 10,000 IU + K2 500mcg MK-7 Softgels	AR-25-CC-010117-01	24 Sep 2025	<0.005	<0.001	0.006	<0.005
Wild Oil of Oregano Softgels	AR-25-CC-009408-01	12 Sep 2025	<0.005	<0.001	0.003	<0.005

Urolithin A 1000mg Liposomal Complex Softgels

Laboratory: Independent third-party laboratory (UK)
Certificate code: AR-26-CC-011294-01
Lab sample number: 444-2026-00035824
Sample code: 26-AYC-332
Date sample taken: 4 Aug 2026
Received by lab: 6 Aug 2026
Reported: 10 Aug 2026
Method: ICP-MS (inductively coupled plasma mass spectrometry)

Heavy metals, Urolithin A 1000mg Liposomal Complex Softgels (mg/kg)
Metal	Result	GB legal maximum for food supplements
Lead (Pb)	0.045	3.0
Cadmium (Cd)	<0.001	1.0
Arsenic (As)	0.017	No specific GB limit for food supplements
Mercury (Hg)	<0.005	0.10

"<" means below the laboratory's reporting limit. Limits: Regulation (EC) No 1881/2006 as it applies in Great Britain. This certificate covers heavy metals only, for the sample named above; it does not test potency or identity.

Third-party laboratory Certificate of Analysis AR-26-CC-011294-01 for PURETREX Urolithin A 1000mg Liposomal Complex Softgels: heavy metals by ICP-MS — lead 0.045, cadmium below 0.001, arsenic 0.017, mercury below 0.005 mg/kg. Reported 10 Aug 2026.

View the full certificate (AR-26-CC-011294-01)

Krill Oil 3000mg Softgels

Laboratory: Independent third-party laboratory (UK)
Certificate code: AR-26-CC-007987-01
Lab sample number: 444-2026-00025183
Sample code: 26-ARP-774
Date sample taken: 8 Jun 2026
Received by lab: 9 Jun 2026
Reported: 15 Jun 2026
Method: ICP-MS (inductively coupled plasma mass spectrometry)

Heavy metals, Krill Oil 3000mg Softgels (mg/kg)
Metal	Result	GB legal maximum for food supplements
Lead (Pb)	<0.005	3.0
Cadmium (Cd)	<0.001	1.0
Arsenic (As)	0.039	No specific GB limit for food supplements
Mercury (Hg)	<0.005	0.10

Third-party laboratory Certificate of Analysis AR-26-CC-007987-01 for PURETREX Krill Oil 3000mg Softgels: heavy metals by ICP-MS — lead below 0.005, cadmium below 0.001, arsenic 0.039, mercury below 0.005 mg/kg. Reported 15 Jun 2026.

View the full certificate (AR-26-CC-007987-01)

Milk Thistle Complex Capsules

Laboratory: Independent third-party laboratory (UK)
Certificate code: AR-26-CC-007986-01
Lab sample number: 444-2026-00025182
Sample code: 26-ARP-776
Date sample taken: 8 Jun 2026
Received by lab: 9 Jun 2026
Reported: 15 Jun 2026
Method: ICP-MS (inductively coupled plasma mass spectrometry)

Heavy metals, Milk Thistle Complex Capsules (mg/kg)
Metal	Result	GB legal maximum for food supplements
Lead (Pb)	0.012	3.0
Cadmium (Cd)	<0.001	1.0
Arsenic (As)	0.011	No specific GB limit for food supplements
Mercury (Hg)	0.015	0.10

Third-party laboratory Certificate of Analysis AR-26-CC-007986-01 for PURETREX Milk Thistle Complex Capsules: heavy metals by ICP-MS — lead 0.012, cadmium below 0.001, arsenic 0.011, mercury 0.015 mg/kg. Reported 15 Jun 2026.

View the full certificate (AR-26-CC-007986-01)

Liposomal Nattokinase 4000FU + Bromelain Capsules

Laboratory: Independent third-party laboratory (UK)
Certificate code: AR-26-CC-004170-01
Lab sample number: 444-2026-00015015
Sample code: 26-ALU-344
Production date: 7 Apr 2026
Received by lab: 10 Apr 2026
Reported: 14 Apr 2026
Method: ICP-MS (inductively coupled plasma mass spectrometry)

Heavy metals, Liposomal Nattokinase 4000FU + Bromelain Capsules (mg/kg)
Metal	Result	GB legal maximum for food supplements
Lead (Pb)	0.170	3.0
Cadmium (Cd)	0.046	1.0
Arsenic (As)	0.141	No specific GB limit for food supplements
Mercury (Hg)	<0.005	0.10

Third-party laboratory Certificate of Analysis AR-26-CC-004170-01 for PURETREX Liposomal Nattokinase 4000FU + Bromelain Capsules: heavy metals by ICP-MS — lead 0.170, cadmium 0.046, arsenic 0.141, mercury below 0.005 mg/kg. Reported 14 Apr 2026.

View the full certificate (AR-26-CC-004170-01)

Creatine Gummies 5g + BCAA & Electrolytes

Laboratory: Independent third-party laboratory (UK)
Certificate code: AR-25-CC-013789-01
Lab sample number: 444-2025-00055895
Sample code: 25-JLB-023
Received by lab: 17 Dec 2025
Reported: 22 Dec 2025
Method: ICP-MS (inductively coupled plasma mass spectrometry)

Heavy metals, Creatine Gummies 5g + BCAA & Electrolytes (mg/kg)
Metal	Result	GB legal maximum for food supplements
Lead (Pb)	0.026	3.0
Cadmium (Cd)	<0.001	1.0
Arsenic (As)	<0.002	No specific GB limit for food supplements
Mercury (Hg)	<0.005	0.10

Third-party laboratory Certificate of Analysis AR-25-CC-013789-01 for PURETREX Creatine Gummies 5g + BCAA & Electrolytes: heavy metals by ICP-MS — lead 0.026, cadmium below 0.001, arsenic below 0.002, mercury below 0.005 mg/kg. Reported 22 Dec 2025.

View the full certificate (AR-25-CC-013789-01)

Wormwood, Black Walnut & Oregano Capsules (Liposomal Herbal Complex)

Laboratory: Independent third-party laboratory (UK)
Certificate code: AR-25-CC-013439-01
Lab sample number: 444-2025-00054621
Sample code: 25-JJZ-774
Received by lab: 9 Dec 2025
Reported: 12 Dec 2025
Method: ICP-MS (inductively coupled plasma mass spectrometry)

Heavy metals, Wormwood, Black Walnut & Oregano Capsules (Liposomal Herbal Complex) (mg/kg)
Metal	Result	GB legal maximum for food supplements
Lead (Pb)	0.042	3.0
Cadmium (Cd)	0.003	1.0
Arsenic (As)	0.062	No specific GB limit for food supplements
Mercury (Hg)	0.015	0.10

Third-party laboratory Certificate of Analysis AR-25-CC-013439-01 for PURETREX Wormwood, Black Walnut & Oregano Capsules (Liposomal Herbal Complex): heavy metals by ICP-MS — lead 0.042, cadmium 0.003, arsenic 0.062, mercury 0.015 mg/kg. Reported 12 Dec 2025.

View the full certificate (AR-25-CC-013439-01)

Ultra Turkesterone Complex Capsules

Laboratory: Independent third-party laboratory (UK)
Certificate code: AR-25-CC-011182-01
Lab sample number: 444-2025-00047118
Sample code: 25-BJA-325
Received by lab: 20 Oct 2025
Reported: 22 Oct 2025
Method: ICP-MS (inductively coupled plasma mass spectrometry)

Heavy metals, Ultra Turkesterone Complex Capsules (mg/kg)
Metal	Result	GB legal maximum for food supplements
Lead (Pb)	0.033	3.0
Cadmium (Cd)	0.004	1.0
Arsenic (As)	0.029	No specific GB limit for food supplements
Mercury (Hg)	<0.005	0.10

Third-party laboratory Certificate of Analysis AR-25-CC-011182-01 for PURETREX Ultra Turkesterone Complex Capsules: heavy metals by ICP-MS — lead 0.033, cadmium 0.004, arsenic 0.029, mercury below 0.005 mg/kg. Reported 22 Oct 2025.

View the full certificate (AR-25-CC-011182-01)

Shilajit Capsules with Sea Moss, Lion's Mane, Ashwagandha & Cordyceps

Laboratory: Independent third-party laboratory (UK)
Certificate code: AR-25-CC-010592-01
Lab sample number: 444-2025-00044198
Sample code: 25-BFT-838
Received by lab: 3 Oct 2025
Reported: 9 Oct 2025
Method: ICP-MS (inductively coupled plasma mass spectrometry)

Heavy metals, Shilajit Capsules with Sea Moss, Lion's Mane, Ashwagandha & Cordyceps (mg/kg)
Metal	Result	GB legal maximum for food supplements
Lead (Pb)	0.039	3.0
Cadmium (Cd)	0.029	1.0
Arsenic (As)	0.179	No specific GB limit for food supplements
Mercury (Hg)	<0.005	0.10

Third-party laboratory Certificate of Analysis AR-25-CC-010592-01 for PURETREX Shilajit Capsules with Sea Moss, Lion's Mane, Ashwagandha & Cordyceps: heavy metals by ICP-MS — lead 0.039, cadmium 0.029, arsenic 0.179, mercury below 0.005 mg/kg. Reported 9 Oct 2025.

View the full certificate (AR-25-CC-010592-01)

NMNH Ultra Complex Capsules

Laboratory: Independent third-party laboratory (UK)
Certificate code: AR-25-CC-010228-01
Lab sample number: 444-2025-00042513
Sample code: 25-BDP-043
Production date: 22 Sep 2025
Received by lab: 23 Sep 2025
Reported: 29 Sep 2025
Method: ICP-MS (inductively coupled plasma mass spectrometry)

Heavy metals, NMNH Ultra Complex Capsules (mg/kg)
Metal	Result	GB legal maximum for food supplements
Lead (Pb)	0.051	3.0
Cadmium (Cd)	0.009	1.0
Arsenic (As)	0.019	No specific GB limit for food supplements
Mercury (Hg)	0.006	0.10

Third-party laboratory Certificate of Analysis AR-25-CC-010228-01 for PURETREX NMNH Ultra Complex Capsules: heavy metals by ICP-MS — lead 0.051, cadmium 0.009, arsenic 0.019, mercury 0.006 mg/kg. Reported 29 Sep 2025.

View the full certificate (AR-25-CC-010228-01)

Pumpkin Seed Oil 3000mg with Saw Palmetto Softgels

Laboratory: Independent third-party laboratory (UK)
Certificate code: AR-25-CC-010151-01
Lab sample number: 444-2025-00042390
Sample code: 25-BDO-722
Received by lab: 22 Sep 2025
Reported: 26 Sep 2025
Method: ICP-MS (inductively coupled plasma mass spectrometry)

Heavy metals, Pumpkin Seed Oil 3000mg with Saw Palmetto Softgels (mg/kg)
Metal	Result	GB legal maximum for food supplements
Lead (Pb)	<0.005	3.0
Cadmium (Cd)	<0.001	1.0
Arsenic (As)	<0.002	No specific GB limit for food supplements
Mercury (Hg)	<0.005	0.10

Third-party laboratory Certificate of Analysis AR-25-CC-010151-01 for PURETREX Pumpkin Seed Oil 3000mg with Saw Palmetto Softgels: heavy metals by ICP-MS — lead below 0.005, cadmium below 0.001, arsenic below 0.002, mercury below 0.005 mg/kg. Reported 26 Sep 2025.

View the full certificate (AR-25-CC-010151-01)

Vitamin D3 10,000 IU + K2 500mcg MK-7 Softgels

Laboratory: Independent third-party laboratory (UK)
Certificate code: AR-25-CC-010117-01
Lab sample number: 444-2025-00042389
Sample code: 25-BDO-697
Received by lab: 22 Sep 2025
Reported: 24 Sep 2025
Method: ICP-MS (inductively coupled plasma mass spectrometry)

Heavy metals, Vitamin D3 10,000 IU + K2 500mcg MK-7 Softgels (mg/kg)
Metal	Result	GB legal maximum for food supplements
Lead (Pb)	<0.005	3.0
Cadmium (Cd)	<0.001	1.0
Arsenic (As)	0.006	No specific GB limit for food supplements
Mercury (Hg)	<0.005	0.10

Third-party laboratory Certificate of Analysis AR-25-CC-010117-01 for PURETREX Vitamin D3 10,000 IU + K2 500mcg MK-7 Softgels: heavy metals by ICP-MS — lead below 0.005, cadmium below 0.001, arsenic 0.006, mercury below 0.005 mg/kg. Reported 24 Sep 2025.

View the full certificate (AR-25-CC-010117-01)

Wild Oil of Oregano Softgels

Laboratory: Independent third-party laboratory (UK)
Certificate code: AR-25-CC-009408-01
Lab sample number: 444-2025-00040145
Sample code: 25-AZD-078
Production date: 3 Sep 2025
Received by lab: 10 Sep 2025
Reported: 12 Sep 2025
Method: ICP-MS (inductively coupled plasma mass spectrometry)

Heavy metals, Wild Oil of Oregano Softgels (mg/kg)
Metal	Result	GB legal maximum for food supplements
Lead (Pb)	<0.005	3.0
Cadmium (Cd)	<0.001	1.0
Arsenic (As)	0.003	No specific GB limit for food supplements
Mercury (Hg)	<0.005	0.10

Third-party laboratory Certificate of Analysis AR-25-CC-009408-01 for PURETREX Wild Oil of Oregano Softgels: heavy metals by ICP-MS — lead below 0.005, cadmium below 0.001, arsenic 0.003, mercury below 0.005 mg/kg. Reported 12 Sep 2025.

View the full certificate (AR-25-CC-009408-01)

Common questions about our testing

Who tests PURETREX supplements?