NZ Whey Proof →
Our open-book commitment

We don’t just say "tested".
We publish it.

Our house-brand supplements are independently lab-tested for protein, heavy metals, contaminants and banned substances. Every completed result is published here - batch by batch.

199Lab reports
276Results
67Products
6Brands
3Independent labs
the results

Every result, in one place

Batch numbers, the lab that ran it, the report reference and the date. If a result isn’t here, we haven’t published it - and we won’t claim it.

Brand
Test
Showing 12 of 67 products
Lab tested
NoWhey

Whey Protein 1kg

73.7g/100g
Protein per 100 g, as tested · Chocolate
ProteinMetalsMicro
Eurofins · Sep 2026
30 reports · 14 batches
Lab tested
Athletech

ISO 27 Protein Isolate + Hydrolysate

75.3g/100g
Protein per 100 g, as tested · Milk Chocolate
ProteinMetalsMicroHASTA
Eurofins + HASTA · Sep 2026
12 reports · 10 batches
Lab tested
Athletech

Pro 6 Whey

63.0g/100g
Protein per 100 g, as tested · Vanilla
ProteinMetalsMicroHASTA
Eurofins + HASTA · Aug 2026
12 reports · 8 batches
Lab tested
NoWhey

Plant Protein 1kg

75.9g/100g
Protein per 100 g, as tested · Salted Caramel
ProteinMetalsMicro
Eurofins + AsureQuality · Jul 2026
12 reports · 12 batches
Lab tested
Xplosiv

NZ Whey

71.3g/100g
Protein per 100 g, as tested · Chocolate
ProteinMetalsMicroHASTA
Eurofins + HASTA · Aug 2026
10 reports · 7 batches
Lab tested
Athletech

Purest Creatine Monohydrate

ND
HASTA banned-substance screen · nothing detected
MetalsMicroHASTAPurity
Eurofins + HASTA + NNB Nutrition + Merieux · Sep 2026
9 reports · 13 batches
Lab tested
Athletech

Precision Hydration 300g

ND
HASTA banned-substance screen · nothing detected
MetalsHASTA
Eurofins + HASTA · Aug 2026
8 reports · 6 batches
Lab tested
Xplosiv

Plant + Probiotics Protein 1kg

75.1g/100g
Protein per 100 g, as tested · Chocolate
ProteinMetalsMicro
Eurofins · Aug 2026
6 reports · 4 batches
Lab tested
Pack Nutrition

Feral Whey Protein

55.8g/100g
Protein per 100 g, as tested · Vanilla
ProteinMetalsMicro
Eurofins · Aug 2026
5 reports · 3 batches
Lab tested
Pack Nutrition

Elementals Creatine (100g / 500g / 1kg)

Clear
Heavy metals · all four below detection
Metals
Eurofins · Jul 2026
5 reports · 5 batches
Lab tested
Xplosiv

NZ Isolate

79.3g/100g
Protein per 100 g, as tested · Vanilla Ice Cream
ProteinMetalsHASTA
Eurofins + HASTA · Jul 2026
5 reports · 8 batches
Lab tested
Athletech

Essential Amino Acids 300g

ND
HASTA banned-substance screen · nothing detected
MetalsHASTA
Eurofins + HASTA · Sep 2026
4 reports · 3 batches
One batch, one result. Each result applies to the batch it names and to no other.
< means below detection. The value is under the lab’s detection limit. ND means not detected.
Go to the source. Open any product for every batch on file and the lab’s own report.

Good or bad,
it goes up.

Given what’s happening across the supplement industry right now, we moved fast - because that’s what this brand is built to do. This section is live and updated in real time, every result links to the report behind it, and new reports go up as they land.

Transparency isn’t selective. If something’s off, we’ll own it and fix it. Publicly. No exceptions.

We publish every completed result, including any that do not flatter us.

The honest part

What this proves - and what it doesn’t

Publishing lab reports is worth very little if you read more into them than they say. Here’s the boundary, in plain terms.

01

A result covers one batch

Every report describes the batch named on it, tested on the date shown - nothing before or after. That’s why we publish batch numbers, not a blanket claim.

02

Each test looks for specific things

A protein assay isn’t a banned-substance screen, and neither is a heavy-metals test. When you read a result, read which test produced it.

03

Detection has a floor

Every method has a detection limit, and panels only look for substances already on the list. “Not detected” is not the same as “not present”.

04

Certification lowers risk. It can’t remove it.

HASTA certification meaningfully reduces the chance of a banned substance being present - that is exactly why we use it - but no programme guarantees zero, and HASTA says so itself. If you compete, follow your anti-doping body’s supplement risk guidance.

What “tested” means here

Four checks, independently run

What we test depends on the product. For our protein range, NZ Whey and NZ Isolate, it’s these four. Other ranges get the checks that matter for them. Nothing is released on trust alone.

Protein content

Verified against the number on the label, within normal analytical variation.

Heavy metals

Lead, cadmium, arsenic and mercury, screened on the finished product.

Contaminants

Microbiological and contaminant screening after blending and packing.

250+ banned substances

HASTA certified - the independent screening drug-tested athletes rely on.

who we work with

Every claim links to the body that issued it

These are independent organisations. None of them work for us, and each publishes its own record - so you never have to take our word for it.

Banned-substance screening

HASTA

Human and Supplement Testing Australia screens certified batches against the WADA Prohibited List - over 250 substances.

Scope: named batches of NZ Whey, NZ Isolate, Athletech and Swoleys products. Certified batch by batch and listed on the public register.

Search the HASTA register
Protein & contaminant testing

Eurofins

The IANZ-accredited laboratory behind our protein analysis and most contaminant testing, and most results on this page.

Scope: per-batch analysis. Each report’s reference number is quoted in the register above.

About Eurofins NZ
Manufacturing audits

SGS & AsureQuality

Independent auditors of the manufacturing site - its processes, hygiene and record-keeping. AsureQuality’s lab also tests some batches.

Scope: the plant and its systems, not any individual batch. We don’t present one as the other.

Methodology

How the testing actually works

Who runs the test, by which method, on what sample. 

A

Independent labs, not our own bench

Protein and contaminant testing is run by Eurofins, an IANZ-accredited laboratory, with some batches tested by AsureQuality. Accreditation means methods and competence are independently assessed - not self-declared.

B

Reference methods, named

Protein is measured by ISO 8968-1 (Kjeldahl, N×6.38) - the dairy reference method. We publish the method with the number so results compare like for like.

C

The plant is audited separately

Our manufacturing site is audited by SGS and AsureQuality. That verifies the facility and its systems - a different question from what’s in a given tub. We keep the two apart on purpose.

15 YEARS FUELLING KIWIS · SINCE 2011

We back every tub with our reputation.

“If we’re going to put our name on it, we’ll show you what’s inside it. Product by product, batch by batch, in the open.”
John Birrell Founder, Xplosiv Supplements · Auckland
Browse the results

Important information: Xplosiv supplements are dietary supplements intended for nutrition purposes. They are not medicines and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Always read the product label before use. The report behind every published result is linked above; audit documentation is available on written request.

HASTA is a trademark of Human and Supplement Testing Australia Pty Ltd. SGS and AsureQuality are trademarks of their respective owners.

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