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Longevity, skin & supplements

Age well.
Know why.

We read the research behind every supplement, skincare ingredient and longevity habit, then give it a clear rating, in plain English, with every claim cited.

Gold, silver, bronzea clear rating on every claim
Everyclaim linked to its source
Freeto read, with no paywall
What we're reading about
NAD+ & NMNCreatineRetinoidsRed light therapyCollagenMagnesium for sleepZone 2 trainingOmega-3Cold plungesVitamin D NAD+ & NMNCreatineRetinoidsRed light therapyCollagenMagnesium for sleepZone 2 trainingOmega-3Cold plungesVitamin D
How our ratings work

Research in. A verdict out.

One

We go to the source

Human trials and reviews of many studies come first. Animal and lab studies are always labelled, so you know what's actually been shown in people.

Two

We weigh the evidence

How many studies, how big, how long, and whether they agree. That decides the rating.

Three

We give you a verdict

Who it's for, who should skip it, and the dose that was actually studied. Sometimes the answer is that you don't need it.

Strong

Gold · strong evidence

Several well-designed human trials, with results that agree.

Moderate

Silver · moderate evidence

Some human data, but small, short or mixed. Promising, not settled.

Limited

Bronze · limited evidence

Mostly animal, lab or anecdotal. Interesting, but not yet shown in people.

Inside every review

Three answers, before you buy anything

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Does it work?

The rating

One clear rating per outcome, so you can see that something helps skin hydration but not deep wrinkles.

Skin hydrationModerate
Deep wrinklesLimited
Supplement capsules resting on weathered stone among wild herbs
How much?

The dose

The amounts used in the studies, how long people took them, and the form that was tested. Not the label's suggestion.

Dose used in studies[X–Y g a day]
How long[8–12 weeks]
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Should I?

The verdict

Who it's for, who should skip it, and when to talk to your own doctor before starting. Sometimes the honest answer is that you don't need it.

Worth trying if[…]
Skip it if[…]
Why Kalivae

Not another wellness blog

Kalivae

  • A gold, silver or bronze rating on every claim
  • Links to the original research, not other blogs
  • The doses that were actually studied
  • We tell you when to skip a product
  • Every guide shows the date it was last updated

The usual wellness content

  • Bold claims with no sense of how sure anyone is
  • Studies cited selectively, if at all
  • Doses taken from the label
  • Everything is a must-have
  • No date, so you can't tell if it's current
The shortlist

Editor's picks, rated first

SleepModerate

Life Extension Magnesium Glycinate

Chelated glycinate form, 105 mg of elemental magnesium per capsule, 90 vegetarian capsules per bottle. Easy on the gut, gentle enough for an evening dose.

NutritionModerate

AG1 Next Gen Greens Pouch

One scoop a day, 30 servings per pouch. A convenient catch-all for days when you don't hit your greens, vitamins and minerals from food — not a replacement for them.

$79–$99 / monthView at AG1

These links go to each merchant's own product page. Kalivae isn't yet in any brand's affiliate program and doesn't earn a commission on these picks. When we are, we'll tell you clearly on every page and in the FAQ. Ratings are set before any commercial relationship and won't change because of one.

Personalized · 2 minutes

Your Longevity Protocol

Answer six quick questions and we'll show you a personalized plan — the habits and products with the strongest evidence for your goals, with doses used in the studies and clear notes on who should skip each one.

Questions

Good questions deserve sources

Can't find your answer? Write to us.

What is Kalivae?

An independent site about longevity, skin health and supplements. We read the research, rate the evidence, and tell you plainly what's worth your time and money.

What do gold, silver and bronze mean?

Gold means strong evidence: several well-designed human trials that agree. Silver means moderate evidence: some human data that's small, short or mixed. Bronze means limited evidence: mostly animal, lab or anecdotal.

What does "Kalivae Recommended" mean?

It's our single top pick in a category. To earn the diamond, a product needs gold-rated evidence for what it claims, independent third-party testing, and a fair price for the dose you actually need.

How do you make money?

Through affiliate commissions when readers buy products we recommend. Brands can't pay for a rating, and we'll tell you to skip a product when the evidence says so.

Is this medical advice?

No. Kalivae is educational. Talk to your clinician before starting a new supplement or routine, especially if you're pregnant, nursing or take medication.

Aging is certain.
The hype isn't.