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Ice baths vs saunas for longevity
7 min read

Ice Baths vs Saunas: Which Wins for Longevity?

Your social media feed is probably full of ice bath warriors and sauna evangelists, each claiming their method is the ultimate longevity hack. Wim Hof disciples swear by cold exposure, while Finnish sauna enthusiasts point to decades of research on heat therapy. So which extreme actually delivers better results for healthy aging? The answer might surprise you.

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NMN vs NAD+ supplement science
5 min read

NMN vs NAD+: The Science Behind the Hype

Let's get straight to the point about NMN and NAD+ supplements – what they actually do, why your body can't absorb NAD+ directly, and how to choose the right longevity supplement for your needs.

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PQQ vs CoQ10 for mitochondrial health
6 min read

PQQ vs CoQ10: The Mitochondrial Power Duo

You've probably heard of CoQ10 – it's been the darling of the supplement world for decades. But there's a newcomer that's got longevity researchers excited: PQQ. While most people debate which one is "better," the real question is why you'd choose between them when they work together like a perfectly orchestrated team.

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Our Standards

Every Keeper product is independently tested by Eurofins, an ILAC-MRA accredited and CNAS certified laboratory. Since each formula is different, the exact panels tested vary by product.

Third-Party Tested

FDA Registered

GMP

HACCP

BRCGS

HALAL

ISO 22000

Complete Longevity
Complete Longevity

Complete Longevity

18 research-backed ingredients, tested at every stage to confirm purity, potency, and safety.

Every batch is verified to confirm the key active ingredient is present as stated on our label.

No batch ships without this confirmation.

Tested for the four key heavy metals, including:

  • Arsenic
  • Lead
  • Cadmium
  • Mercury

All levels must meet or exceed food safety standards before any batch is released.

Tested for harmful microbial contaminants, including:

  • Salmonella
  • E. coli
  • Staphylococcus aureus
  • Yeasts & moulds

We test every batch to ensure it's safe for long-term daily use.

Screened for mycotoxins, including:

  • Aflatoxins (B1, B2, G1, G2)
  • Ochratoxin A

Every result comes back confirmed below reporting thresholds.

Lot 2026020401 · Eurofins Sample 727-2026-00002914

View COA Certificate
Daily Reset
Daily Reset

Daily Reset

15 research-backed ingredients, tested at every stage to confirm purity, potency, and safety.

Every batch is verified for Dihydromyricetin (DHM), the key active ingredient behind Daily Reset's liver support formula.

No batch ships without this confirmation.

Tested for the four key heavy metals, including:

  • Arsenic
  • Lead
  • Cadmium
  • Mercury

All levels must meet or exceed food safety standards before any batch is released.

Every batch is screened for pesticide and herbicide residues, including:

  • Pesticide residues (liquid chromatography screening)
  • Pesticide residues (gas chromatography screening)

Our ingredients must pass stringent safety checks for agricultural contaminants before use.

Tested for harmful microbial contaminants, including:

  • Salmonella
  • E. coli
  • Staphylococcus aureus
  • Yeasts & moulds

We test every batch to ensure it's safe for long-term daily use.

Screened for mycotoxins, including:

  • Aflatoxins (B1, B2, G1, G2)
  • Ochratoxin A

Every result comes back confirmed below reporting thresholds.

Every batch is tested for moisture content to protect product stability and shelf life.

Kept within range on every batch we release.

Lot 2026020402 · Eurofins Sample 727-2026-00002916

View COA Certificate
Good Gut
Good Gut

Good Gut

12 research-backed ingredients, tested at every stage to confirm purity, potency, and safety.

Every batch is verified for Quercetin, one of the key actives behind Good Gut's formula.

No batch ships without this confirmation.

Tested for the four key heavy metals, including:

  • Arsenic
  • Lead
  • Cadmium
  • Mercury

All levels must meet or exceed food safety standards before any batch is released.

Every batch is screened for pesticide and herbicide residues, including:

  • Pesticide residues (liquid chromatography screening)
  • Pesticide residues (gas chromatography screening)

Our ingredients must pass stringent safety checks for agricultural contaminants before use.

Tested for harmful microbial contaminants, including:

  • Salmonella
  • E. coli
  • Staphylococcus aureus
  • Yeasts & moulds

We test every batch to ensure it's safe for long-term daily use.

Screened for mycotoxins, including:

  • Aflatoxins (B1, B2, G1, G2)
  • Ochratoxin A

Every result comes back confirmed below reporting thresholds.

Every batch is tested for moisture content to protect product stability and shelf life.

Kept within range on every batch we release.

Lot 2026020403 · Eurofins Sample 727-2026-00002917

View COA Certificate
Body Boost
Body Boost

Body Boost

8 research-backed ingredients, tested at every stage to confirm purity, potency, and safety.

Every batch is verified for its key actives, including:

  • Collagen content
  • Creatine
  • Hydroxyproline

No batch ships without this confirmation.

Tested for the four key heavy metals, including:

  • Arsenic
  • Lead
  • Cadmium
  • Mercury

All levels must meet or exceed food safety standards before any batch is released.

Tested for harmful microbial contaminants, including:

  • Salmonella
  • E. coli
  • Staphylococcus aureus
  • Yeasts & moulds

We test every batch to ensure it's safe for long-term daily use.

Screened for mycotoxins, including:

  • Aflatoxins (B1, B2, G1, G2)
  • Ochratoxin A

Every result comes back confirmed below reporting thresholds.

Lot 2026020404 · Eurofins Sample 727-2026-00002918

View COA Certificate

We love questions

Are Keeper products independently tested?

Yes. Every batch of every Keeper product is independently tested by an accredited third party laboratory for heavy metals, microbiological contaminants and mycotoxins, with potency verification of selected active ingredients. All contaminant results were within food safety limits.

What does Keeper test for?

Every batch of every Keeper product is independently tested for heavy metals, microbiological contaminants and mycotoxins, and Good Gut and Daily Reset are also tested for pesticides. Each product also has potency verification of a key active ingredient, including quercetin in Good Gut, DHM in Daily Reset, and collagen and creatine in Body Boost.

Why are Keeper products made in China?

We set out to make the best formulas we could, without limiting ourselves by geography. Many of the ingredients used in supplements around the world, including many supplements made in Australia, are produced in China, and our ingredients are sourced from suppliers around the world based on quality, specification and suitability for each formula.

Given the complexity of our products and the number and dosage of active ingredients they contain, our manufacturing partner in China was the best fit for the specifications, capabilities and quality standards we required.

Our partner operates a GMP-certified, FDA-registered facility and holds ISO 22000, BRCGS, HACCP and Halal certifications. Every production batch is independently tested by an accredited third-party laboratory for heavy metals, microbiological contaminants and mycotoxins, with key active ingredients verified for potency before release.

Learn more on our Standards page.

What standards are Keeper products made to?

Keeper products are manufactured in a GMP certified, FDA registered facility that holds ISO 22000, BRCGS, HACCP and Halal certifications. Every active ingredient and dose is disclosed, with no proprietary blends.

Do Keeper products contain proprietary blends?

No. Every Keeper product lists each active ingredient and its exact dose on the label.

See all FAQs